November AMP_Digital

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 | N O V E M B E R / D E C E M B E R 2 0 1 9 5 1 SURFACE HARDNESS DEPTH MEASUREMENT USING ULTRASOUND BACKSCATTERING Mike Bogaerts, Michael Kroening, Paul Kroening, and Tobias Mueller Ultrasound backscattering enables direct determination of the interface between two materials with different microstructures. EDITORIAL OPPORTUNITIES FOR HTPro IN 2020 The editorial focus for HTPro in 2020 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. February/March Thermal Processing in Aerospace May/June Testing & Process Control September Thermal Processing in On/Off Highway Applications November/December Atmosphere & VacuumHeat Treating To contribute an article to one of the upcoming issues, contact Joanne Miller at joanne.miller@ . To advertise, contact kelly.johanns@ . DEPARTMENTS 1 2 | EDITORIAL 1 4 | HEAT TREATING SOCIETY NEWS ABOUT THE COVER Scanning for surface hardness depth control using ultrasonic backscattering. Courtesy of CNH Industrial. METALLURGICAL STRATEGIES FOR HIGHER STRENGTH INDUCTION HARDENED PARTS Robert Cryderman Induction hardening parts with small grain size achieves higher fracture strengths, but close control of thermal cycles is required to prevent grain growth. EDITOR Joanne Miller TECHNICAL ADVISORS HTS R&D Committee CONTRIBUTING EDITOR Ed Kubel PRODUCTIONMANAGER Kelly Sukol NATIONAL SALESMANAGER Kelly Johanns 440.318.4702 HEAT TREATINGSOCIETY EXECUTIVE COMMITTEE James P. Oakes, President Stephen G. Kowalski, Immediate Past President Eric L. Hutton, Vice President HTPro is published quarterly by ASM International®, 9639 Kinsman Road, Materials Park, OH 44073, 440.338.5151, Vol. 7, No. 4 Copyright ©2019 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. 13 8