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ASM Handbook

Steel Heat Treating Fundamentals and Processes

Edited by
Jon L. Dossett
Jon L. Dossett
Consultant
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George E. Totten
George E. Totten
Portland State University
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ASM International
Volume
4A
ISBN electronic:
978-1-62708-165-8
Publication date:
2013
Book Chapter

Quenching of Steel

By
G.E. Totten
G.E. Totten
Portland State University
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J.L. Dossett
J.L. Dossett
Consultant
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N.I. Kobasko
N.I. Kobasko
IQ Technologies, Inc.
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Published:
2013
Page range:
91 - 157
Publication history
July 08, 2013

Abstract

This article provides an overview of common quenching media, the factors involved in the mechanism of quenching, and process variables, namely, surface condition, mass and section size of the workpiece, and flow rate of the quenching liquid. It describes the methods of quenchant characterization using hardening-power and cooling-power tests. The article discusses the fundamentals involved in heat-transfer coefficient and heat flux of quenching processes. This discussion is followed by various actual examples of applications of these methods using simplified equations. Quenchant evaluation, classification, selection, and maintenance are reviewed in detail. The article addresses the various reasons for quench oil variability and complications due to aging and contamination.

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G.E. Totten, J.L. Dossett, N.I. Kobasko, 2013. "Quenching of Steel", Steel Heat Treating Fundamentals and Processes, Jon L. Dossett, George E. Totten

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