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The Herring Group, Inc. Heat Treat Consultant Heat Treating Consulting The Heat Treat Doctor.com

Carburizing/Carbonitriding

1. Herring, D. H., Case Studies: Creating Salvage Cycles for Carburized Gears, Industrial Heating, April 2010.
2. Herring, D. H., A Quench-and-Temper Technique for Evaluating Carburized Case Depths, Industrial Heating, September 2009.
3. Herring, D. H., Secrets to Controlling the Carburizing Process, Industrial Heating, May 2008.
4. Otto, Frederick J. and Herring, D. H., Advancements in Precision Carburizing of New Aerospace and Motorsports Materials, Heat Treating Progress, May/June 2007.
5. Carey, S. and Herring, D. H., Low-Pressure Carburizing Process Development of M50 NiL, Heat Treating Progress, May/June 2007.
6. Herring, D. H., and Frederick J. Otto, Low-Pressure Vacuum Carburizing, Advanced Materials and Processes, Vol. 165 No. 3, March 2007.
7. Herring. D. H., A Case for Higher Carburizing Temperatures, Industrial Heating, January 2007.
8. Herring, D. H., A Perspective from the Americas: Low Pressure Vacuum Carburizing / Carbonitriding and High Pressure Gas Quenching, White Paper, September 2006.
9. Otto, F.J. and Herring, D.H., Vacuum Carburizing of Aerospace and Automotive Components, Heat Treating Progress, January/February 2005.
10. Herring, D. H., The Changing Face of Carburizing Alloys, Industrial Heating, January 2005.
11. Herring, D. H., Heat Treating Processes, Part One: The Carburizing Process, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 1, No. 4, April 2004.
12. Yu. T., Wu, T., and Herring. D. H., Low Pressure Vacuum Carburizing + High-Pressure Gas Quenching, Heat Treating Progress, August/September 2003.
13. Herring, D. H., Low-Pressure Vacuum Carburizing - Is It Ready for the Commercial Heat Treater?, Heat Treating Progress, June/July 2003.
14. Lohrman, M., Grafen, W., Herring, D. H., and Greene, J., Acetylene Vacuum Carburizing (AvaC) as the Key to the Integration of the Case-hardening Process into the Production Line, Heat Treatment of Metals 2002.2 p 39-43.
15. Herring, D. H., Pros and Cons of Atmosphere and Vacuum Carburizing, Industrial Heating, January 2002.
16. Herring, D. H., Practical and Scientific Aspects of Low Pressure Carburizing, 2001 Heat Treating Conference Proceedings, ASM International
17. Herring, D. H., Carburized Case Depths, Heat Treating Progress, January/February 2002
18. Herring, D. H., A Comparison of Atmosphere and Vacuum Carburizing Technology, Industrial Heating Magazine, January 2002
19. Lindell, G. D., Herring. D. H., Breuer, D. J., and Matlock. B., Atmosphere Vs. Vacuum Carburizing, Heat Treating Progress, November 2001
20. Lindell, G. D., Herring. D. H., Breuer, D. J., and Matlock. B., An Analytical Comparison of Atmosphere and Vacuum Carburizing Using Residual Stress and Microhardness Measurements, 2001 Heat Treating Conference Proceedings, ASM International
21. Herring, D. H., Practical Learning Series: Carburizing and Carbonitriding, Materials Engineering Institute, ASM International
22. Herring, D. H., An Update on Low Pressure Carburizing Techniques and Experiences, 18th Annual Heat Treating Conference and Exposition Proceedings, ASM International. 2000.
23. Whitbeck, R., Cabados, E., Lucas, R., Mack, C., Turner, F., Herring, D. H., and Greene J., High Volume Carburizing Technology, Advanced Materials and Processes, April 1999.
24. Herring, D. H., Study of Vacuum Carburizing Process Parameters, Industrial Heating, September 1996.
25. Herring, D. H., and Houghton, R., The Influence of Process Variables on Vacuum Carburizing, International Conference on Carburizing and Nitriding with Atmospheres, ASM International, December 1995.
26. Herring, D. H., Vacuum Carburizing Process Parameters, Industrial Heating, September 1996.
27. Herring, D. H., Fundamentals of Gas Carburizing and Carbonitriding, White Paper, March 1994.
28. Herring, D. H., Vacuum Carbonitriding Provides Exact Predictable Case Depths, Modern Application News, November 1995.
29. Kengott, R. and Herring. D. H., The Benefits of Vacuum Carbonitriding…A User's Perspective, II, White Paper, October 1995.
30. Herring, D. H., Vacuum Carburizing Process Parameters, Advanced Materials and Processes, December 1994.
31. Herring, D. H., A Discussion of Vacuum Carburizing Process Parameters Heat Treating: Equipment and Processes Proceedings, ASM International, 1994.
32. Kengott, R. and Herring. D. H., Vacuum Carbonitriding Die Cutting Punches Advantageously, Industrial Heating, September 1994.
33. Kengott, R. and Herring. D. H., Benefits of Vacuum Carbonitriding…A User's Perspective, White Paper, August 1994.
34. Herring, D. H., A Discussion of Vacuum Carburizing Process Parameters, International Conference on Equipment and Processes Proceedings, ASM International, April 1994.
35. Herring, D. H., and St. Pierre, J., Vacuum Carburizing of P/M Steels, Annual Powder Metallurgy Conference Proceedings, Volume 43, APMI International, 1989.
36. Herring, D. H., Symposium on Vacuum Carburizing, International Lecture Series, Moscow, Minsk, and Kiev, May 1988 and November 1998 (in Russian)
37. Herring, D. H., Pulse/Pump-Introducing a Significant Improvement for Vacuum Carburizing Users, White Paper, 1988.
38. Herring. D. H. and Jeremy St. Pierre, Vacuum Carburizing of PM Steels, 1987 Annual Powder Metallurgy Conference Proceedings, Vol. 43, 1987.
39. Herring, D. H., Why Vacuum Carburizing is Effective for Today and Tomorrow, I, II, and III Industrial Heating, June/September/October 1985.
40. Herring, D. H., and Read, G., Vacuum Carburizing Developments, Metallurgia, May 1986.
41. Herring, D. H., America's Technology Leader…Vacuum Carburizing, White Paper, 1984.
42. Kawka, R., Herring. D. H., Roth, P. and Sitko, R.,Vacuum Carburizing Steel, US Patent No. 4,386,973 , June 1983.


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Chemistry

1. Herring, D. H., The Influence of Manganese in Steel, Industrial Heating, May 2010.
2. Herring, D. H., Boron in Steel, Industrial Heating, May 2007.
3. Herring, D. H. and Herring, T.D., Facts About the Elements: Molybdenum, Heat Treating Hints, Vol. 1 No. 1, August 2005.
4. Herring. D. H., Facts About the Elements: Carbon, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 7, July 2004.
5. Herring. D. H., Facts About the Elements: Niobium, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 6, June 2004.
6. Herring. D. H., Facts About the Elements: Aluminum, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 5, May 2004.
7. Herring. D. H., Facts About the Elements: Copper, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 4, April 2004.
8. Herring. D. H., Facts About the Elements: Indium, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 3, June 2004.
9. Herring. D. H., Facts About the Elements: Niobium, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 2, February 2004.

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Fasteners

1. Herring, D. H., Hydrogen Embrittlement, Wire Forming Technology International, Fall 2010.
2. Herring, D. H., and Richard D. Sisson, Furnace Atmosphere Considerations for Fasteners, China Fastener World, (CFW 30), October 2010 (in English and Chinese).
3. Sisson Jr., Richard D., and Daniel H. Herring, Embrittlement Issues with Fasteners, Fastener World (FW124), September/October 2010.
4. Herring, D. H., Tempering of Fasteners, Fastener Technology International, October/November 2010.
5. Herring, D. H., Fastener Failures Due to Stress Corrosion Cracking, Fastener Technology International, August/September 2010.
6. Herring, D. H., Stress Relief, Wire Forming Technology International, Summer 2010.
7. Sisson Jr., Richard D., and Daniel H. Herring,, Tips for Heat Treating Fasteners - Part 2, Fastener World (FW122), May/June 2010.
8. Herring, D. H., and Richard D. Sisson, Cleaning of Fasteners Before & After Heat Treating, Fastener Technology International, June/July 2010.
9. Sisson Jr., Richard D., and Daniel H. Herring,, The Heat Treatment of Fasteners - Practice, Fastener Eurasia, May/June 2010.
10. Herring, D. H., and Fred R. Specht, Induction Hardening of Fasteners, Fastener Technology International, April/May 2010.
11. Sisson Jr., Richard D., and Daniel H Herring, Tips for Heat Treating Fasteners - Part 1, Fastener World (FW 121), Mar./Apr. 2010.
12. Herring, D. H., and Richard D. Sisson, Testing of Heat-Treated Fasteners, Fastener Technology International, February/March 2010.
13. Sisson Jr., Richard D., and Daniel H. Herring, Fastener Materials & Applications, Fastener World (FW 119), Nov/Dec 2009.
14. Herring, D. H., and Richard D. Sisson, Basic Principles of Annealing Wire Products, Fastener EurAsia, October - December 2009.
15. Herring, D. H., and Richard D. Sisson, Basic Principles of Annealing Wire Products, Wire Forming Technology, Fall 2009.
16. Sisson Jr., Richard D. and Daniel H. Herring, The Heat Treating of Fasteners - Practice, Fastener Eurasia, October - December 2009.
17. Sisson Jr., Richard D. and Daniel H. Herring, The Heat Treating of Fasteners - Practice, Fastener World (FW 118), September/October 2009.
18. Sisson Jr., Richard D. and Daniel H. Herring, D. H., Fundamental Principles of Heat-Treating Steel, Fastener World (FW 117), July/August 2009.
19. Herring, D. H. and Richard D. Sisson Jr., How Heat Treating Can Contribute to Fastener Failures & Methods of Prevention, Fastener Technology International, August/September 2009.
20. Herring, D. H. and Richard D. Sisson Jr., What is Heat Treating and Why Do We Do It? Fastener World (FW 116), May/June 2009.
21. Herring, D. H. and Richard D. Sisson Jr., Series 2, Part One: Furnace Atmosphere Considerations for Fasteners, Fastener Technology International, April 2009.
22. Herring, D. H. and Richard D. Sisson Jr., Series 1, Part Seven: The Heat Treatment of Fasteners - Embrittlement Issues, Fastener Technology International, December 2008/January 2009.
23. Sisson Jr., Richard D. and D. H. Herring, D. H. Series 1, Part Six: The Heat Treatment of Fasteners - Tips for Operation, Fastener Technology International, June/July 2008.
24. Herring, D. H. and Richard D. Sisson Jr., Series 1, Part Five: The Heat Treatment of Fasteners - Tips of the Trade, Fastener Technology International, June/July 2008.
25. Herring, D. H., and Richard D. Sisson, Series 1, Part Four: The Heat Treatment of Fasteners - Materials and Metallurgy, Fastener Technology International, April 2008.
26. Herring, D. H. and Richard D. Sisson Jr., Series 1, Part Three: The Heat Treatment of Fasteners - Practice, Fastener Technology International, December 2007.
27. Herring. D. H., The Heat Treatment of Fasteners - The Practical Side, Industrial Heating, October 2007.
28. Sisson, Richard D., and D. H. Herring, Series 1, Part Two: Fundamental Principles of Heat Treating Steel, Fastener Technology International, October 2007.
29. Herring, D. H., and Richard D. Sisson, Series 1, Part One: What Is Heat Treating and Why Do We Do It?, Fastener Technology International, August/September 2007.

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Ferrous Metallurgy

1. Herring, D. H., Frequently Asked Questions About Tool Steel Heat Treating, Industrial Heating, July 2010.
2. Herring. D. H., Tool Steel Heat Treatment, Industrial Heating, March 2007.
3. Herring, D. H., Stainless Steels Part Two: Heat Treatments, Industrial Heating, June 2006.
4. Herring, D. H., Stainless Steels Part One: Classification and Selection, Industrial Heating, May 2006.

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Gears

1. Herring, D. H. and Gerald D. Lindell, Heat Treating Heavy Duty Gears, Heat Treating Progress, July/August 2008.
2. Herring, D. H. and Gerald D. Lindell, Heat Treating Heavy Duty Gears, Gear Solutions, October 2007.
3. Herring, D. H., Oil Quenching Technologies for Gears, Gear Solutions, July 2007.
4. Herring, D. H., and Gerald D. Lindell, Reducing Distortion in Heat Treated Gears, Gear Solutions, June 2004.
5. Herring, D. H., Gear Heat Treatment: The Influence of Materials and Geometry, Gear Technology Magazine, March/April 2004.
6. Herring, D. H., Gear Heat Treatment: The Influence of Materials and Geometry, SME Conference: Heat Treating and Hardening of Gears, Chicago, IL, March 2004.
7. Otto. F. and Herring. D.H., Gear Heat Treatment, Part I & II, Heat Treating Progress, June 2002, July/August 2002.
8. Herring, D. H., Gear Heat Treatment: Today and Tomorrow, Society of Manufacturing Engineers, Technical Paper No. CM03-147, March 2003.
9. Lindell, G. D., Breuer, D. J., and Herring. D. H., Selecting the Best Carburizing Method for the Heat Treatment of Gears, American Gear Manufacturers Association Technical Paper No. 02FTM7, October 2002.
10. Lindell, G. D., Herring. D. H., Breuer, D. J., and Matlock. B., Atmosphere vs. Vacuum Carburizing, Gear Technology, April/May 2002
11. Herring. D. H., Lindell, G. D., Breuer, D. J., and Matlock. B An Evaluation of Atmosphere and Vacuum Carburizing Methods for the Heat Treatment of Gears, Off-Highway Conference Proceedings, SAE International, 2002.

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General

1. Herring, D. H., ARP-1962: The Need for In-Plant Training and Education Programs, Industrial Heating, November 2010.
2. Herring, D. H., and Patrick McKenna, Nadcap Accreditation - Is It Right For Me?, Industrial Heating, November 2010.
3. McKenna, Patrick and Daniel Herring, Predicting Size Change from Heat Treatment, Production Machining, October 2010.
4. Herring, D. H., The Nuclear Renaissance: Opportunities for the Heat-Treating Industry Part Two, Industrial Heating, August 2010.
5. Herring, D. H., The Nuclear Renaissance: Opportunities for the Heat-Treating Industry Part One, Industrial Heating, June 2010.
6. Herring, D. H., The Nuclear Renaissance: Opportunities for the Heat-Treating Industry, Part Zero, Industrial Heating (Online Exclusive), June 2010.
7. Herring D. H., Tips for Selecting Induction Heating Equipment, Industrial Heating, June 2010.
8. McKenna, Patrick, D. H. Herring, and C. V. Darragh, How to Best Communicate Your Needs to the Heat Treater, Industrial Heating, May 2010.
9. Herring, D. H., The Role of the Heat Treater in Reverse Engineering, Industrial Heating, March 2010.
10. Herring, D. H., Quest for Fire - Combustion Basics, Industrial Heating, October 2009.
11. Sisson Jr., Richard and D. H. Herring, Fundamental Principles of Heat Treating Steels, Wire Forming Technology International, Summer 2009.
12. Herring, D. H., Health and Safety in the Heat Treat Shop, Industrial Heating, April 2009.
13. Herring. D. H. and Richard D. Sisson, Jr., What is Heat Treating and Why Do We Do It? Wire Forming Technology International, Spring 2009.
14. Herring, D. H., What is Good Heat Treatment?, Industrial Heating, January 2009.
15. Herring, D. H., Electric Heating Elements, Part Two: Metal Alloys, Industrial Heating, October 2008.
16. Herring, D. H., Electric Heating Elements, Part One: Silicon Carbide, Industrial Heating, September 2008.
17. McInnerney, Thomas and Daniel H. Herring, Simplified Temperature Uniformity Surveys Utilizing Ceramic Technology for the Metals Industry, Industrial Heating, April 2008.
18. Herring. D. H., What Do We Really Know About Tempering?, Industrial Heating, July 2007.
19. Heat Treat Consultants Roundtable, Industrial Heating, April 2007.
20. Herring, D. H., Heat & Corrosion Resistant Materials/Composites: A Survey of High Temperature Alloy Selection in Heat Treating, Industrial Heating, September 2006.
21. Herring. D. H., How to Conduct a Heat Treat Audit, Industrial Heating, September 2006.
22. Herring, D. H., A Tutorial on Shot Blasting and Shot/Laser Peening, Industrial Heating, August 2006.
23. Herring, D. H., A Heat Treater's Book Guide, Industrial Heating, July 2006.
24. Herring, D. H., Sewing Needles, Industrial Heating, June 2006
25. Herring, D. H., All About Scissors, Industrial Heating, June 2006.
26. Herring, D. H., Heat Treating…Putting the "Spring" in Springs,, Industrial Heating, May 2006.
27. Herring, D. H., Rare Earth Magnets: Making the World A Better, Safer, Faster Place, Industrial Heating, April 2006.
28. Herring, D. H., The Hammer…Man's Next Best Friend, Industrial Heating, March 2006.
29. Herring, D. H., All About Scissors, Industrial Heating, February 2006.
30. Herring, D. H., The Paperclip…Just Wire Without Heat Treat, Industrial Heating, January 2006.
31. Herring, D. H., Improving the Heat Treating Process, Industrial Heating, October 2005.
32. Herring, D. H., Cold and Cryogenic Treatment, Industrial Heating, May 2005.
33. Herring, D. H., Inherent Dangers Associated with Industrial Furnace Equipment, White Paper.
34. Herring, D. H., Heat Treating & The Internet, White Paper
35. Herring, D. H., Induction Heating For The Rest Of Us, Industrial Heating, May 2004.
36. Herring, D. H., Energy Conservation in Heat Treating, Industrial Heating, March 2004.
37. Herring, D. H., The Fundamentals of Heat Treating, Part Two: Heat Treating Terminology, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2, No. 1, April 2004.
38. Herring, D. H., The Fundamentals of Heat Treating, Part One: What is Heat Treating and Why Do We Do It?, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2, No. 1, January 2004
39. Herring, D. H., Energy, Part One: Energy Saving Tips, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 1, No. 2, December 2003
40. Herring, D. H., How to Load Parts in Furnace Baskets, Heat Treating Progress, November/December 2003.
41. Herring, D. H., A Reference Library for Heat Treaters, Heat Treating Progress, April/May 2003.
42. Herring, D. H., Where Have All the Heat Treaters Gone?, Heat Treating Progress, January/February 2003.
43. Herring, D. H., Manufacturing Engineering Handbook; Chapter 5: Heat Treatment, McGraw-Hill, 2003.
44. Lohrmann, M. and Herring,. D. H., Heat Treating Challenges in the 21st Century Heat Treating Progress Magazine, June/July 2001
45. Herring, D. H., A Look at the U.S. Process Heating Industry: Today and Tomorrow, Metallurgia Magazine, April 2002.
46. Herring, D. H., Using Applications to Select and Optimize Furnace Design, Automotive Furnaces and Heat Treating Technology Clinic Proceedings, SME International, September 1996.
47. Sprow, Eugene E., Heat Treating Becomes a Science, Tooling & Production, November 1984.

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Heat Treating, Atmosphere

1. Herring, D. H., The Annealing Process Revealed - Part Three: Annealing of Steel Coils, Industrial Heating, October 2010.
2. Herring, D. H., The Annealing Process Revealed - Part Two: Furnace Atmosphere Considerations, Industrial Heating, September 2010.
3. Herring, D. H., The Annealing Process Revealed - Part One: Basic Principles, Industrial Heating, August 2010.
4. Herring, D. H., Considerations in Glass-to-Metal and Ceramic-to-Metal Sealing, Part Two, Industrial Heating, January 2010.
5. Herring, D. H., Considerations in Heat Treatment (Part Two: Furnace Atmosphere Control), Industrial Heating, December 2009.
6. Herring, D. H., Considerations in Glass-to-Metal and Ceramic-to-Metal Sealing, Part One, Industrial Heating, December 2009.
7. Herring, D. H., Considerations in Heat Treatment (Part One: Furnace Atmospheres), Industrial Heating, October 2009.
8. Herring. D. H., and Gerald D. Lindell, Periodic Atmosphere Furnace Maintenance: Part One Preventative Maintenance Plans, Heat Treating Progress, July/August 2009.
9. Herring, D. H., Furnace Atmosphere Considerations During Heat Treatment, Furnaces International, March/April 2009.
10. Herring, D. H. and Richard D. Sisson, Jr., Furnace Atmosphere Considerations for Fasteners, Fastener Technology International, April/May 2009.
11. Herring, D. H., The Importance of Normalizing, Industrial Heating, April 2008.
12. Herring, D. H., The Flame Curtain - Function, Adjustment and More, Industrial Heating, March 2008.
13. Herring, D. H., Understanding the Benefits of Austempering, Industrial Heating, December 2005.
14. Herring, D. H., Exothermic Gas Generators: Forgotten Technology? Industrial Heating, June 2005.
15. Herring, D. H., Furnace Atmosphere Analysis by the Shim Stock Method, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2, No. 6, June 2004.
16. Braziunas, V. and Herring, D. H., A Flowmeter Primer, Heat Treating Progress, March/April 2004
17. Herring, D. H., Peak Shaving: What Impact Does It Have on the Heat Treater?, Industrial Heating, January 2004.
18. Herring, D. H., Frequently Asked Questions About Flowmeters, Heat Treating Progress, October 2002
19. Herring, D. H., Purging of Furnaces: Is it Safe? Heat Treating Progress, September 2002
20. Herring, D. H., Comparing Carbonitriding and Nitrocarburizing, Heat Treating Progress, April/May 2002
21. Herring, D. H., Fundamentals of Brazing, Materials Engineering Institute, ASM International.
22. Herring, D. H., Safety and Atmospheres, Heat Treating Progress, November 2001
23. Herring, D. H., Practical Learning Series: Furnace Atmospheres, Materials Engineering Institute, ASM International
24. Herring, D. H., Endothermic Gas Generators, Heat Treating Progress, February 2000
25. Herring, D. H., Principles and Use of Endothermic Gas Generators, 1999 Heat Treating Conference Proceedings, ASM International, Advanced Materials and Processes, February 2000
26. Herring, D. H., and Hansen, P., Heat Treating of Ferrous P/M Parts, Advanced Materials and Processes, April 1998
27. Herring, D. H., and Hansen, P., Heat Treating Ferrous P/M Parts, Powder Metallurgy Clinic Proceedings, SME International, September 1998
28. Herring, D. H., and Hansen, P., Key Considerations in the Heat Treatment of Ferrous P/M Alloys, 17th Annual Heat Treating Conference and Exposition Proceedings, ASM International, September, 1997
29. O'Neill, R. and Herring, D. H., The Use of Dissociated Ammonia in Heat Treating Industrial Heating, August 1998
30. O'Neill, R,. and Herring, D. H., Principles and Use of Dissociated Ammonia 17th Annual Heat Treating Conference and Exposition Proceedings, ASM International, September, 1997
31. Herring, D. H., Technical Considerations in the Use of Dissociated Ammonia or Nitrogen/Propane as a Brazing Furnace Atmosphere, White Paper, 1997.
32. Herring, D. H., Heat Treating Atmospheres, Institute of Gas Technology, CICGI II Lecture, June 1984 - June 1999
33. Herring, D. H., Heat Treating and Atmosphere Generation, Institute of Gas Technology, CICGI II Lecture, June 1978 - June 1999
34. Herring, D. H., Heat Treating of Ferrous P/M Materials, Sintering Conference Proceedings, APMI International, 1985.
35. Herring, D. H., Seven Key Considerations in Heat Treating, White Paper, 1987.
36. Herring, D. H., Let's Stop and Consider…The Not So Obvious Disadvantages of Atmosphere Carburizing, White Paper, 1984.

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Heat Treating, Vacuum

1. Herring. D. H., The Ubiquitous "O" Ring, Industrial Heating, November 2009.
2. Herring. D. H., Technology Trends in Vacuum Heat Treating, Part Three: New Technologies and Future Developments, Industrial Heating, January 2009.
3. Herring. D. H., The Molecule Counters, Part Two: More About Vacuum Gauges, Industrial Heating, December 2008.
4. Herring. D. H., Technology Trends in Vacuum Heat Treating, Part Two: Processes and Applications, Industrial Heating, November 2008.
5. Herring. D. H., The Molecule Counters, Part One: Vacuum Gauges, Industrial Heating, November 2008.
6. Herring. D. H., Technology Trends in Vacuum Heat Treating, Part One: Markets, Processes and Applications, Industrial Heating, October 2008.
7. Herring, D. H., How to Move Molecules in Vacuum Systems, Part Two: Diffusion Pumps and Troubleshooting Tips, Industrial Heating, December 2007.
8. Herring, D. H., How to Move Molecules in Vacuum Systems, Part One: Mechanical and Booster Pumps, Industrial Heating, November 2007.
9. Herring, D. H., A Perspective from the Americas: Advanced Technology Trends in Vacuum Heat Treating, White Paper, May 2007.
10. Herring. D. H., What is Vacuum?, Industrial Heating, November 2006.
11. Herring, D. H., Using Partial Pressure in Vacuum Furnaces, Industrial Heating, November 2005.
12. Herring, D. H., Understanding the Principles of Vacuum and Vacuum Furnaces, Part Two: The Molecule Counters, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2, No. 6, January 2004.
13. Herring, D. H., Understanding the Principles of Vacuum and Vacuum Furnaces, Part One: What is a Vacuum? (D. Herring)*, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 1, No. 1, November 2003.
14. Herring, D. H., Plasma Assisted Surface Treatments, Heat Treating Progress, March 2002
15. Edenhofer, B., Bouman, D. and Herring. D. H., Chapter 7: Vacuum Heat Treatment, Steel Heat Treatment Handbook, 2nd Edition
16. Edenhofer, B., Bouman, D. and Herring. D. H., Chapter 7: Vacuum Heat Processing, IHEA Home Study Course, Industrial Heating Equipment Association.
17. Mitchell, J., Herring, D. H., and Gornicki, W., Small Batch Processing of Tools Advantageously, SME Vacuum Heat Treating Conference, Indianapolis, IN, 1999.
18. Herring. D. H., and Hansen. P., Low Temperature Vacuum Heat Treating, 17th Annual Heat Treating Conference and Exposition Proceedings, ASM International, September, 1997.
19. Herring, D. H., Low Temperature Vacuum Heat Treating, Vacuum Heat Treating Clinic Proceedings, SME International, June 1997.
20. Herring, D. H., Key Considerations in Low Temperature Vacuum Processing, Furnaces North America '96 Conference Proceedings, September 1996.
21. Herring, D. H., Continuous Design Allows High Pressure Quenching at 6 Bar and Beyond Vacuum Technology Seminar, ASM International, May 1994.
22. Herring, D. H., Increased Productivity Through The Use of Continuous Vacuum Designs, Heat Treating, January 1985.
23. Herring, D. H., The Vacuum Process…Is It Right For Me? Quest '86 Conference Proceedings, ASM International
24. Herring, D. H., Understanding Vacuum, Quest '86 Conference Proceedings, ASM International
25. Herring, D. H., Vacuum Heat Treat Furnaces for Vacuum Heat Treating, Industrial Heating, August 1985.
26. Herring, D. H., A Glimpse Into The Future of Vacuum Heat Treating, White Paper, 1985.

See also: Vacuum Heat Treatment Series

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Industrial Heating Blogs (The Experts Speak)

1. (Furnace Design) Herring, D. H., Types of Atmosphere Heat Treating Equipment (Part 1), The Experts Speak, 3 November 2010.
2. (Furnace Design) Herring, D. H., Classification of Heat Treating Equipment (Part 2), The Experts Speak, 27 October 2010.
3. (Furnace Design) Herring, D. H., Classification of Heat Treating Equipment (Part 1), The Experts Speak, 20 October 2010.
4. (Furnace Design) Herring, D. H., Cooling of Metal Parts by Forced Convection, The Experts Speak, 13 October 2010.
5. (Furnace Design) Herring, D. H., Heating of Metal Parts by Convection, The Experts Speak, 29 September 2010.
6. (Furnace Design) Herring. D. H., Cooling of Metal Parts by Radiant Heat Transfer (Part Two), The Experts Speak, 22 September 2010.
7. (Furnace Design) Herring, D. H., Types of Oven Equipment, The Expert Speaks, 15 September 2010.
8. (Furnace Design) Herring. D. H., Cooling of Metal Parts by Radiant Heat Transfer (Part One), The Experts Speak, 8 September 2010.
9. (Furnace Design) Herring. D. H., Heating of Thin Metal Parts by Radiation (Part Three), The Experts Speak, 1 September 2010.
10. (Furnace Design) Herring. D. H., Heating of Thin Metal Parts by Radiation (Part Two), The Experts Speak, 25 August 2010.
11. (Furnace Design) Herring. D. H., Heating of Thin Metal Parts by Radiation (Part One), The Experts Speak, 18 August 2010.
12. (Failure Analysis) Herring, D. H., Liquid Metal Embrittlement, The Experts Speak, 4 August 2010.
13. (Metallurgy) Herring, D. H., All About Nickel-Based Alloys (Part 2), The Experts Speak, 28 July 2010.
14. (Metallurgy) Herring, D. H., All About Nickel-Based Alloys (Part 1), The Experts Speak, 14 July 2010.
15. (Failure Analysis) Herring, D. H., Stress Corrosion Cracking and Hydrogen Embrittlement of Nickel Alloys, The Experts Speak, 7 July 2010.
16. (Failure Analysis) Herring, D. H., Weld Cracks in Monel K500, The Experts Speak, 30 June 2010.
17. (Heat Treating) Herring, D. H., Vacuum Hardening of Tool Steels, The Experts Speak, 23 June 2010.
18. (Heat Treating) Herring, D. H., Salt Bath Hardening of Tool Steels, The Experts Speak, 16 June 2010.
19. (Specifications) Herring, D. H., Nadcap Advice (Part 2), The Experts Speak, 9 June 2010.
20. (Specifications) Herring, D. H., Nadcap Advice (Part 1), The Experts Speak, 2 June 2010.
21. (Metallurgy) Herring, D. H., All That Glitters, The Experts Speak, 26 May 2010.
22. (Quenching) Herring, D. H., Causes for Heat-Treat Distortion, The Experts Speak, 19 May 2010.
23. (Carburizing) Herring, D. H., A Pictorial Comparison of Nitriding and Carburizing, The Experts Speak, 12 May 2010.
24. (Heat Treating) Herring, D. H., Tips for Selecting Induction Heating Equipment, The Experts Speak, 5 May 2010.
25. (Gears) Herring, D. H., Loading Orientations for Gears, The Experts Speak, 28 April 2010.
26. (Heat Treating) Herring, D. H., Bake-out Cycle After Plating, The Experts Speak, 21 April 2010.
27. (Heat Treating) Herring, D. H., Gas Carbonitriding, The Experts Speak, 14 April 2010.
28. (Heat Treating) Herring, D. H., Carbon Flux, The Experts Speak, 7 April 2010.
29. (General) Herring, D. H., A Discussion About LNG and LPG, The Experts Speak, 31 March 2010.
30. (Heat Treating) Herring, D. H., Heat Treatment of Nitinol Alloys (Part 2), The Experts Speak, 24 March 2010.
31. (Heat Treating) Herring, D. H., Heat Treatment of Nitinol Alloys (Part 1), The Experts Speak, 17 March 2010.
32. (Science) Herring, D. H., Emissivity, The Experts Speak, 10 March 2010.
33. (Gear Heat Treatment) Herring, D. H., Managing Distortion in the Heat Treatment of Gears, The Experts Speak, 3 March 2010.
34. (Maintenance) Herring, D. H., MRO (Maintenance Repair Operations), The Experts Speak, 24 February 2010.
35. (Heat Treating) Herring, D. H., Variable Hardness Levels for A2 Tool Steel, The Experts Speak, 17 February 2010.
36. (Heat Treating) Herring, D. H., Annealing to Achieve Soft Parts for Low-Carbon and Stainless Steel, The Experts Speak, 10 February 2010.
37. (Maintenance) Herring, D. H., Atmosphere Furnace Leak-Detection Procedure: Copper, Steel, Stainless Steel Test, The Experts Speak, 3 February 2010.
38. (Maintenance) Herring, D. H., Atmosphere Furnace Leak Checking Procedure: Smoke Bomb Test, The Experts Speak, 27 January 2010.
39. (Metallurgy) Herring, D. H., Influence of Alloying Elements in Steel - Manganese (Part 3), The Experts Speak, 20 January 2010.
40. (Metallurgy) Herring, D. H., Influence of Alloying Elements in Steel - Manganese (Part 2), The Experts Speak, 13 January 2010.
41. (Metallurgy) Herring, D. H., Influence of Alloying Elements in Steel - Manganese (Part 1), The Experts Speak, 6 January 2010.
42. (Equipment) Herring, D. H., Oven Materials of Construction to Resist Hydrobromic Acid Corrosive Attack, The Experts Speak, 23 December 2009.
43. (Heat Treating) Herring, D. H., Flame Hardening 101, The Experts Speak, 16 December 2009.
44. (Sintering) Herring, D. H., Vacuum Hot-Zone Construction for the Heat Treatment of MIM Materials.
45. (Heat Treating) Herring, D. H., Bending Fish Hooks, The Experts Speak, 2 December 2009.
46. (Brazing) Herring. D. H., Tips for Nickel Brazing Two Inconel 625 Parts Using BNi-3 Filler Metal, Part Two, The Experts Speak, 25 November 2009.
47. (Brazing) Herring. D. H., Tips for Nickel Brazing Two Inconel 625 Parts Using BNi-3 Filler Metal, Part One, The Experts Speak, 18 November 2009.
48. (Atmospheres) Herring. D. H., Tips for a Successful Ammonia Installation, The Experts Speak, 11 November 2009.
49. (Heat Treating) Herring, D. H., Nitriding of Hot-Forming and Blanking Dies, The Experts Speak, 4 November 2009.
50. (Equipment Design) Herring, D. H., Considerations in Cooling Large Loads, The Experts Speak, 28 October 2009.
51. (Furnace Atmospheres) Herring, D. H., Precautions When Using Hydrogen for Partial Pressure and Quenching, The Experts Speak, 21 October 2009.
52. (Furnace Atmospheres) Herring, D. H., Experience with Helium and Hydrogen for Partial Pressure and Quenching, The Experts Speak, 14 October 2009.
53. (Metallurgy) Herring, D. H., Understanding the Bauschinger Effect, The Experts Speak, 7 October 2009.
54. (Heat Treating) Herring, D. H., Annealing Ductile Iron, The Experts Speak, 30 September 2009.
55. (Heat Treating) Herring, D. H., How to Achieve Different Mechanical Properties on SAE 4340 at 30 HRC, The Experts Speak, 23 September 2009.
56. (Heat Treating) Herring, D. H., Heat Treating 440C Stainless Steels, The Experts Speak, 16 September 2009.
57. (Heat Treating) Herring, D. H., Critical Temperatures for Precipitation Hardening Stainless Steels, The Experts Speak, 9 September 2009.
58. (Nonferrous) Herring, D. H., Annealing Platinum-Iridium Alloys, The Experts Speak, 2 September 2009.
59. (Nonferrous) Herring, D. H., Annealing Copper and Copper Alloys, The Experts Speak, 26 August 2009.
60. (Coatings) Herring, D. H., Titanium Nitride Coating for Tools (Part 2), The Experts Speak, 19 August 2009.
61. (Coatings) Herring, D. H., Titanium Nitride Coating for Tools (Part 1), The Experts Speak, 12 August 2009.
62. (Metallurgy) Herring, D. H., Segregation and Banding in Steel Revisited, The Experts Speak, 5 August 2009.
63. (Basics) Herring, D. H., Understanding Pressure Scales, The Experts Speak, 29 July 2009.
64. (Safety) Herring, D. H., NFPA 86 and Furnaces Operating Below 1400 F, The Experts Speak, 22 July 2009.
65. (Heat Treating) Herring, D. H., Decarburization Protection for M-Series High-Speed Steel, The Experts Speak, 15 July 2009.
66. (Metallurgy) Herring, D. H., Materials Science 101: The Polymorphic Nature of Iron, The Experts Speak, 8 July 2009.
67. (Heat Treating) Herring, D. H., Nitriding Stop Off, The Experts Speak, 1 July 2009.
68. (Heat Treating) Herring, D. H., Austempering SAE 1050 Steel, The Experts Speak, 24 June 2009.
69. (Metallurgy) Herring, D. H., H-Band Boron Steels, The Experts Speak,17 June 2009.
70. (Induction) Herring, D. H., Induction Heating of Forgings, The Experts Speak, 10 June 2009.
71. (Heat Treating) Herring, D. H., Stress Relief, Part 2: Alternative Techniques, The Experts Speak, 3 June 2009.
72. (Nonferrous) Herring, D. H., Heat Treatment of Copper-Beryllium Alloys, The Experts Speak, 27 May 2009.
73. (Sintering) Herring, D. H., Sinterhardening Part 1I: Hardenability Calculations, The Experts Speak, 20 May 2009.
74. (Sintering) Herring, D. H., Sinterhardening Part 1: Alloy Additions, The Experts Speak, 13 May 2009.
75. (Heat Treating) Herring, D. H., Stress Relief, Part 1: Steel Components, The Experts Speak, 6 May 2009.
76. (Metallurgy) Herring, D. H., Stead's Brittleness (Embrittlement), The Experts Speak, 29 April 2009.
77. (Metallurgy) Herring, D. H., Widmanstätten Structures, The Experts Speak, 22 April 2009.
78. (Testing) Herring, D. H., Charpy V-Notch Values, The Experts Speak, 15 April 2009.
79. (Nonferrous) Herring, D. H., The Importance of Soak Time in Magnesium Heat Treatment (Part 2), The Experts Speak, 1 April 2009.
80. (Nonferrous) Herring, D. H., The Importance of Soak Time in Magnesium Heat Treatment (Part 1), The Experts Speak, 25 March 2009.
81. (Metallurgy) Herring, D. H., Grinding Burns, The Experts Speak, 18 March 2009.
82. Herring, D. H., Rubber Bands, The Experts Speak, 11 March 2009.
83. (Metallurgy) Herring, D. H., The Influence of Alloying Elements in Steel: Part 1, The Experts Speak, 4 March 2009.
84. (Metallurgy) Herring, D. H., Benefits of Heat Treating (Part 5): Time-Temperature-Transformation (TTT) Diagrams, The Experts Speak, 25 February 2009.
85. (Heat Treating) Herring, D. H., Soft Spots in Carburizing, The Experts Speak, 18 February 2009.
86. (Heat Treating) Herring, D. H., Soft Annealing, The Experts Speak, 11 February 2009.
87. (Heat Treating) Herring, D. H., Normalizing, The Experts Speak, 4 February 2009.
88. (Metallurgy) Herring, D. H., Benefits of Heat Treating (Part 4): Martensite Formation and Tempering, The Experts Speak , 28 January 2009.
89. (Metallurgy) Herring, D. H., Benefits of Heat Treating (Part 3): Pearlite Formation, The Experts Speak, 21 January 2009
90. (Heat Treating) Herring, D. H., Induction Tempering of Cast Iron, The Experts Speak, 14 January 2009.
91. (Metallurgy) Herring, D. H., Benefits of Heat Treating (Part 2): Phases of Steel, The Experts Speak, 23 December 2008.
92. (Metallurgy) Herring, D. H., Benefits of Heat Treating (Part 1): Introduction to Metallurgy, The Experts Speak, 4 November 2008.
93. (Quenching, Oil) Herring, D. H., Delayed Quenching, The Experts Speak, 16 December 2008.
94. (Metallurgy) Herring, D. H., The Heat Treat Doctor Talks About Alloy Steel, The Experts Speak, 1 October 2008.
95. (Nitriding, Gas) Herring, D. H., Tips on Gas Nitriding (Part 2): The Experts Speak,16 October 2008.
96. (Metallurgy) Herring, D. H., The Heat Treat Doctor Talks About Plain Carbon Steel, The Experts Speak, 4 September 2008.
97. (Nitriding, Gas) Herring, D. H., Tips on Gas Nitriding (Part 1): The Experts Speak, 25 July 2008.
98. (General) Herring, D. H., How to Avoid Hydrogen Embrittlement, The Experts Speak, 15 July 2008.
99. (General) Herring, D. H., Purging of Furnaces, The Experts Speak, 30 June 2008.

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Maintenance

1. Herring, D. H., and Gerald D. Lindell, Periodic Atmosphere Furnace Maintenance Part Two: Lessons Learned, Heat Treating Progress, November/December 2009.
2. Herring, D. H., and Gerald D. Lindell, Periodic Atmosphere Furnace Maintenance Part One: Preventative Maintenance Plans, Heat Treating Progress, July/August 2009.
3. Herring, D. H., Proper Care and Feeding of Furnace Mesh Belts, Industrial Heating, August 2008.
4. Herring, D. H., Its Time to Clean Up Our Act!, Industrial Heating, January 2008.
5. Herring, D. H., Experience with Alloy Fan Problems, Industrial Heating, March 2006.
6. Herring, D. H., Setting Up A Planned Preventative Maintenance Program, Industrial Heating, April 2004.
7. Herring, D. H., Fan Problems and Their Solutions, Part One: Types of Fans, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2, No. 1, January 2004.
8. Herring, D. H. and Pye, D., Understanding the Endothermic Gas Generator: Maintenance and Safety Checklists, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2, No. 1, January 2004.

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Manufacturing, Cellular

1. Herring, D. H., Symposium on Just-In-Time Heat Treatment, International Lecture Series, Moscow, Minsk, and Kiev, May 1988 and November 1998 (in Russian)
2. Herring, D. H., Applying Just-In-Time Manufacturing Techniques to Heat Treating, Metallurgia Magazine, April 1988.
3. Herring, D. H., Applying Just-In-Time Manufacturing Techniques to Heat Treating, White Paper, 1988.
4. Herring, D. H., and Mowry, R., Just-In-Time Heat Treatment, Advanced Materials and Processes, September 1987.
5. Herring, D. H., Applying Just-In-Time Economics to Heat Treatment, White Paper, 1987.

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Metallurgy

1. Herring, D. H., The Influence of Manganese in Steel, Industrial Heating, May 2010.
2. Herring, D. H., H-Band and RH-Band Steels, Industrial Heating, March 2009.
3. Herring, D. H., What Happens to Steel During Heat Treatment? Part Two: Cooling Transformations, Industrial Heating, June 2007.
4. Herring, D. H., What Happens to Steel During Heat Treatment? Part One: Phase Transformations, Industrial Heating, April 2007.
5. Herring, D. H., The Embrittlement Phenomena in Hardened and Tempered Steel, Industrial Heating, October 2006.
6. Herring, D. H., Fundamentals of Heat Treating: Ideal Diameter, Industrial Heating, September 2005.
7. Herring, D. H., Grain Size and Its Influence on Materials Properties, Industrial Heating, August 2005.
8. Herring, D. H., Metallic Glasses, Industrial Heating, April 2005
9. Herring. D. H., Retained Austenite, Industrial Heating, March 2005
10. Herring. D. H., Heat Treatment of Cast Irons, Industrial Heating, December 2004.
11. Herring, D. H., Iron, Part 1: Overview, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 1, No. 2, February 2004
12. Herring, D. H., Stainless Steel, Part 1: Overview, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 1, No. 2, December 2003
13. Herring, D. H., What to Do About Metal Dusting, Heat Treating Progress, August 2003.
14. Herring, D. H., Understanding the Differences Between Soldering, Brazing, and Welding, Heat Treating Progress, June/July 2003.
15. Herring, D. H., Surface Oxidation Effects, Heat Treating Progress, December 2001
16. Herring, D. H., Failure Analysis From the Heat Treater's Perspective, Heat Treating Progress, July/August 2002
17. Herring, D. H., Part Discoloration in Continuous Furnaces, Heat Treating Progress, November 2002

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Nitriding/Nitrocarburizing

1. Herring, D. H., Principles of Gas Nitriding, white paper.
2. Braziunas, Vtyas, Leo Porkka, and D. H. Herring, Automated Measurement System for Gas Nitriding/Nitrocarburizing, Industrial Heating, January 2005.
3. Herring, D. H., Modern Gas Nitriding - The Right Choice of Surface Treatment, White Paper, 1980.
4. Herring, D. H., Process and Metallurgical Considerations in Gas Nitriding, White Paper, 1980.

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Nonferrous Metallurgy

1. Herring, D. H., Heat Treating of Aluminum Castings, Industrial Heating, February 2010.
2. Herring, D. H., Heat Treating of Aluminium Castings, Aluminium International Today, July/August 2009.
3. Herring, D. H., Understanding Magnesium Heat Treatment, Industrial Heating, February 2009.
4. Herring. D. H., The Heat Treatment of Light Metals, Industrial Heating, February 2008.
5. Herring, D. H., Practical Aspects Related to the Heat Treatment of Titanium and Titanium Alloys, Industrial Heating, February 2007.
6. Herring, D. H., Understanding Copper & Copper Alloy Heat Treatment, Industrial Heating, February 2006.
7. Herring, D. H., Heat Treating of Aluminum and Aluminum Alloys, Industrial Heating, February 2005.
8. Herring. D. H., Aluminum and Aluminum Alloys, Part One, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2. No. 5, May 2004.
9. Herring, D. H., Brazing of Nonferrous Materials, Industrial Heating, February 2004.

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Quenching, High Gas Pressure

1. Herring, D. H., A Review of High Pressure Gas Quenching from the Perspective of the Heat Transfer Coefficient, Industrial Heating, February 2006.
2. Herring, D. H., Sizing a Surge Tank, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2, No. 2, February 2004.
3. Herring, D. H., Quenching, A Review of High Pressure Gas Quenching Technology, Part One: The Heat Transfer Coefficient, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 1, No. 2, December 2003
4. Herring, D. H., Cold Chamber Gas Pressure Quenching Optimizes Vacuum Furnace Performance, Vacuum Heat Treating Clinic Proceedings, SME International, June 1997.
5. Herring, D. H., A Review of High Pressure Gas Quenching in Semi-Continuous Vacuum Furnaces, International Conference on Equipment and Processes Proceedings, ASM International, April 1994.
6. Herring, D. H., Update on Pressure Quenching, White Paper, 1985.
7. Herring, D. H., A Practical Guide to Understanding Pressure Quenching, White Paper, 1985.
8. Herring, D. H., Pressure Quench, Furnace Design Extends Range of Applications, Heat Treating, September 1985.

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Quenching, Oil

1. MWF Heat Treating: Options for a Critical Process, Canter, Neil (Ed.), Tribology & Lubrication Technology, March 2010.
2. Herring, D. H., Oil Quenching Part Two: What is Your Quench Oil Analysis Telling You?, Industrial Heating, September 2007.
3. Herring, D. H., Oil Quenching Part One: How to Interpret Cooling Curves, Industrial Heating, August 2007.
4. Herring, D. H., Fundamentals of Press Quenching, Industrial Heating, December 2006.
5. Herring, D. H., Secrets of Effective Hot Oil Quenching, Industrial Heating, April 2006.
6. Herring, D. H. and Balme, S., A Review of Oil Quenching Technology, White Paper, 2004.
7. Herring, D. H., Sources of Quench Oil-Related Fires, Industrial Heating, November 2004.
8. Herring, D. H., Quenching, A Review of Oil Quenching Technology, Part One: Factors That Influence Quenching, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 3, No. 3, March 2004.
9. Herring, D. H., Review of Factors Affecting Distortion in Quenching, Heat Treating Progress Magazine, December 2002.
10. Herring, D. H., Sugiyama, M. and Uchigaito, M., Controlling Oil Surface Pressure in Vacuum Oil Quenching Heat Treating, July 1987.
11. Herring, D. H., Sugiyama, M. and Uchigaito, Vacuum Furnace Oil Quenching - Influence of Oil Surface Pressure on Steel Hardness and Distortion, Industrial Heating, June 1986.
12. Herring, D. H., Liquid Quenching in Vacuum, Quest '86 Conference Proceedings, ASM International.

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Science

1. Herring. D. H., Understanding pH, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 5, May 2004.
2. Herring. D. H., Understanding Density, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 6, June 2004.
3. Herring. D. H., Understanding Chemical Bonds, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 7, July 2004.
4. Herring,. D. H., Time Conversion Chart, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2 No. 4, April 2004.

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Sensors and Controls

1. Herring. D. H., Applying Intelligent Sensor Technology to Problems Related to Distortion, Quenching and Distortion Clinic Proceedings, SME International, 1997.
2. Herring. D. H., Practical Computer Control of Atmosphere and Vacuum Sintering Furnaces, Chicago Chapter Meeting, APMI International, February 1994.

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Sintering

1. Herring, D. H., Sintering Atmospheres for Improved Properties, Advances in Powder Metallurgy & Particulate Materials-2005, 2005 PM2TEC Conference, Montreal, Quebec Canada, June 2005
2. Herring. D. H., Heat Treating P/M Parts, Heat Treating Progress, June 2002.
3. Herring. D. H., High Temperature Sintering Applications Using Vacuum Technology, 17th Annual Heat Treating Conference and Exposition Proceedings, ASM International, September, 1997.
4. Herring. D. H., Using Vacuum Sintering Technology for Both Conventional and High Temperature Powder Metallurgy Applications, Sintering Seminar Proceedings, Metal Powder Industries Federation, Fall 1996.
5. Herring. D. H., Selection Guide to Atmosphere Furnace Designs for High Temperature Sintering, Furnaces North America '96 Conference Proceedings, September 1996.
6. Herring. D. H., Setting up a PLANNED Preventative Maintenance Program for High Temperature Sintering Furnaces, Maintenance Seminar Proceedings, APMI International, September 1996.
7. Herring. D. H., Vacuum Sintering for Special Powder Metallurgy Applications, Bulletin of the Powder Metallurgy Association, PMAROC, Taiwan, August 1996.
8. Herring. D. H., Cost Effective Walking Beam Furnaces, Metal Powder Report Magazine, September 1995.
9. Herring. D. H., Choices Make Walking Beam Furnaces Cost Effective, White Paper, October 1995.
10. Herring. D. H., Considerations in Sintering Furnace Atmospheres, White Paper, Fall 1993.
11. Herring. D. H., Design and Selection of P/M Sintering Furnaces, Metallurgia Magazine, January 1994.
12. Herring. D. H., Symposium on P/M Sintering, International Lecture Series, Moscow, Minsk, and Kiev, May 1988 and November 1998 (in Russian)
13. Herring. D. H., Considerations in Atmosphere and Vacuum Sintering, Industrial Heating, August 1987.
14. Herring. D. H., and Mowry, R., Continuous Vacuum Sintering and Heat Treating Integrally by Innovative Process, Industrial Heating, June 1986.
15. Herring, D. H., and Mowry, R., Innovations in High Temperature Sintering, Annual Powder Metallurgy Conference, Volume 41, 1985, APMI International.
16. Herring. D. H., Considerations in Sintering Furnace Atmospheres, White Paper, 1985.
17. Herring. D. H., Production Vacuum Sintering on Critical P/M Materials, Industrial Heating, August 1984.

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Testing

1. Herring, D. H., Temperature Uniformity Survey Tips, Part Three: Ovens, Industrial Heating, July 2009.
2. Herring, D. H., Temperature Uniformity Survey Tips, Part Two: Vacuum Furnaces, Industrial Heating, June 2009.
3. Herring, D. H., Temperature Uniformity Survey Tips, Part One: Atmosphere Furnaces, Industrial Heating, May 2009.
4. Herring, D. H., Hardness and Hardenability, Part One: Tips and Techniques for Hardness Testing, Industrial Heating, June 2008.
5. Herring, D. H., Failure Analysis: Nondestructive Testing Methods, Industrial Heating. April 2007.
6. Stone, A. and Herring, D. H, Practical Considerations for Successful Hardness Testing, Industrial Heating, April 2006.
7. Herring, D. H., The Do's and Don'ts of Field Failure Analysis, Industrial Heating, January 2006.
8. Herring. D. H., Basics of Mechanical Testing, Heat Treating Progress, March/April 2005.
9. Herring, D. H., Basics of Mechanical Testing, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2, No. 12, December 2004.
10. Herring. D. H., Trends in Mechanical Testing Methods, Industrial Heating, June 2004.
11. Herring. D. H., Principles of Failure Analysis, Part Two: Nondestructive Testing, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 2, No. 2, February 2004
12. Herring. D. H., The Do's and Don'ts of Failure Analysis, Part One: Field Failures, HOT TOPICS in Heat Treatment and Metallurgy, Vol. 1, No. 1, November 2003
13. Herring. D. H., Jominy Testing: The Practical Side, Industrial Heating, October 2000.

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"The Monty" Blog (ViewPoint, CounterPoint)

1. Herring, D. H., ViewPoint: Industrial Research & Development - Where's the Beef?, 1 January 2010.
2. Herring, D. H., CounterPoint: Industrial Research & Development - Where's the Beef?, 8 January 2010.
3. Herring, D. H., ViewPoint: "To Heat Treat or Not to Heat Treat", Is That the Question?, 8 January 2010.

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Vacuum Heat Treatment Series

1. Herring, D. H., Vacuum Applications - Special Processes, Industrial Heating (Online Exclusive #26), October 2011.
2. Herring, D. H., Vacuum Applications - Carburizing and Carbontirdiing, Industrial Heating (Online Exclusive #25), September 2011.
3. Herring, D. H., Vacuum Applications - Brazing, Industrial Heating (Online Exclusive #24), August 2011.
4. Herring, D. H., Vacuum Applications - Hardening, Industrial Heating (Online Exclusive #23), July 2011.
5. Herring, D. H., Backfill Gases, Surge Tanks and Storage Vessels, Industrial Heating (Online Exclusive #22), June 2011.
6. Herring, D. H., Baskets, Fixtures and Racks - Design and Alloy Selection, Industrial Heating (Online Exclusive #21), May 2011.
7. Herring, D. H., Oil Quenching Systems, Industrial Heating (Online Exclusive #20), April 2011.
8. Herring, D. H., Gas Quenching Systems, Industrial Heating (Online Exclusive #19), March 2011.
9. Herring, D. H., Maintenance Practices, Procedures and Tips, Industrial Heating (Online Exclusive #18), February 2011.
10. Herring, D. H., Controls for Vacuum Furnaces, Industrial Heating (Online Exclusive #17), January 2011.
11. Herring, D. H., Water Cooling Systems, Industrial Heating (Online Exclusive #16), December, 2010.
12. Herring, D. H., Heat Exchanger Design and Maintenance, Industrial Heating (Online Exclusive #15), November 2009.
13. Herring, D. H., Diffusion Bonding, Eutectic Melting, Outgassing and Related Topics, Industrial Heating (Online Exclusive #14), October 2010.
14. Herring, D. H., Cleaning of Parts and Fixtures, Industrial Heating (Online Exclusive #13), September 2010.
15. Herring, D. H., Leak Rates, Leak Detection and Leak Repair, Industrial Heating (Online Exclusive #12), August 2010.
16. Herring, D. H., Vacuum Valves, Penetrations, Feedthrus and Flanges, Industrial Heating (Online Exclusive #11), July 2010.
17. Herring, D. H., Partial Pressure, Mean Free Path and Related Topics, Industrial Heating (Online Exclusive #10), June 2010.
18. Herring, D. H., Heating Elements, Industrial Heating (Online Exclusive #9), May 2010.
19. Herring, D. H., Hot Zone Construction, Industrial Heating (Online Exclusive #8), April 2010.
20. Herring, D. H., Vapor Pressure, Industrial Heating (Online Exclusive #7), March 2010.
21. Herring, D. H., Vacuum Measurement Systems - Part Two, Industrial Heating (Online Exclusive #6), February 2010.
22. Herring, D. H., Vacuum Measurement Systems - Part One, Industrial Heating (Online Exclusive #5), January 2010.
23. Herring, D. H., Vacuum Pumping Systems - Part Two, Industrial Heating (Online Exclusive #4), December 2009.
24. Herring, D. H., Vacuum Pumping Systems - Part One, Industrial Heating (Online Exclusive #3), November 2009.
25. Herring, D. H., The Theory of Gases, Industrial Heating (Online Exclusive #2), October 2009.
26. Herring, D. H., All About Vacuum, Industrial Heating (Online Exclusive #1), September 2009.

Daniel H. Herring - The Heat Treat Doctor

ILLINOIS INSTITUTE OF TECHNOLOGY

Associate Research Professor


Monthly Columnist
Download our Heat Treating Capabilities Brochure

Contact Us for an initial consultation and to discuss your Heat Treating and Sintering needs.
The HERRING GROUP, Inc.
P.O. Box 884
Elmhurst, IL 60126
Tel: 630.834.3017
Fax: 630.834.3117
Cell: 630.640.9048
Daniel H. Herring
“The Heat Treat Doctor”
dherring@heat-treat-doctor.com