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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 N E
2 0 1 5
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6 8 TECHNICAL SPOTLIGHT: USING MAGNETIC BARKHAUSEN NOISE TO ANALYZE CASE DEPTH James Thomas Magnetic Barkhausen noise analysis is an NDTmethod used to evaluate conditions in steel components including detection of thermal damage induced during grinding and evaluation of case depth.EDITORIAL OPPORTUNITIES
FOR
HTPro
IN 2015
The editorial focus for
HTPro
in 2015
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.
October
Thermal Processing
in Automotive Applications
November
Atmosphere/Vacuum
Heat Treating
To contribute an article to one of the
upcoming issues, contact Frances
Richards at
frances.richards@asmint- ernational.org.To advertise, contact Erik Klingerman
at
erik.klingerman@asminternational. org.DEPARTMENTS
2 | EDITOR’S MESSAGE 3 | HEAT TREATING SOCIETY NEWS 5 | CHTE UPDATEABOUT THE COVER
Testing a camshaft lobe for grinding retemper burn using Rollscan 350 Barkhausen
noise analysis equipment. American Stress Technologies Inc.,
astresstech.com. RESIDUAL GAS ANALYZER DETERMINES DIFFERENCES IN GRAPHITE AND ALL-METAL HOT ZONE VACUUM OPERATION Trevor Jones and Reàl Fradette Residual gas analysis shows that graphite ismore economical than all-metal design and is capable of producing contamination-free surfaces.EDITOR
Frances Richards
TECHINCAL ADVISORS
Aymeric Goldsteinas
Stephen Feldbauer
Valery Rudnev
Olga Rowan
HTS R&D Committee
CONTRIBUTING EDITOR
Ed Kubel
PRODUCTION MANAGER
Annie Beck
NATIONAL SALES MANAGER
Erik Klingerman
440.338.5151, ext. 5574
erik.klingerman@asminternational.orgHEAT TREATING SOCIETY
EXECUTIVE COMMITTEE
Roger Alan Jones,
President
Thomas E. Clements,
Immediate Past President
Stephen G. Kowalski,
Vice President
HTPro
is published quarterly by ASM International®, 9639 Kinsman Road, Materials Park, OH 44073, 440.338.5151,
asminternational.org. Vol. 3, No. 2. Copyright©2015 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.