1 A D V A N C E D M A T E R I A L S & P R O C E S S E S | J U L Y / A U G U S T 2 0 2 2 5 1 PRACTICAL ASPECTS OF PLASMA NITRIDING KINETICS FOR 17-4 PH STAINLESS STEEL E. Rolinski, A. Springer, and M. Woods Plasma nitriding is very effective in removing the passive layer of chromiumoxide formed naturally on the surface of stainless steel, but controlling the kinetics is key for optimal results. EDITORIAL OPPORTUNITIES FOR HTPro IN 2022 The editorial focus for HTPro in 2022 reflects some key technology areas wherein opportunities exist to lower manufacturing and processing costs, reduce energy consumption, and improve performance of heat treated components through continual research and development. November/December Atmosphere & Vacuum Heat Treating To contribute an article to an upcoming issue, contact Vicki Burt at vicki.burt@asminternational.org. To advertise, contact kelly.johanns@ asminternational.org. DEPARTMENTS 12 | EDITORIAL 14 | HEAT TREATING SOCIETY NEWS ABOUT THE COVER Plasma nitriding, also referred to as ion nitriding, eliminates chromiumoxides on the surface of stainless steels. Courtesy of Advanced Heat Treat Corp. TECHNIQUES FOR DETERMINING RETAINED AUSTENITE Thomas Wingens Accuratemeasurement of retained austenite levels is important in the development and control of a heat treatment process. EDITOR Victoria Burt TECHNICAL ADVISORS HTS R&D Committee PRODUCTIONMANAGER Allison Freeman NATIONAL SALESMANAGER Kelly Johanns 440.318.4702 kelly.johanns@asminternational.org HEAT TREATINGSOCIETY EXECUTIVE COMMITTEE Lesley Frame, President Eric L. Hutton, Immediate Past President Benjamin Bernard, Vice President HTPro is published three times per year by ASM International®, 9639 Kinsman Road, Materials Park, OH 44073, 440.338.5151, asminternational.org. Vol. 10, No. 2, Copyright ©2022 by ASM International®. All rights reserved. The acceptance and publication of manuscripts in HTPro does not imply that the editors or ASM International accept, approve, or endorse the data, opinions, and conclusions of the authors. Althoughmanuscripts published in HTPro are intended to have archival significance, authors’ data and interpretations are frequently insufficient to be directly translatable to specific design, production, testing, or performance applications without independent examination and verification of their applicability and suitability by professionally qualified personnel. 10 6
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