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ASM Desk Editions

Metals Handbook Desk Edition

Edited by
Joseph R. Davis
Joseph R. Davis
Davis & Associates
Search for other works by this author on:
ASM International
ISBN electronic:
978-1-62708-199-3
Publication date:
1998
Book Chapter

Case Hardening of Steel

Published:
1998
Page range:
982 - 995

Abstract

Case hardening is defined as a process by which a ferrous material is hardened in such a manner that the surface layer, known as the case, becomes substantially harder than the remaining material, known as the core. This article discusses the equipment required, process variables, carbon and hardness gradients, and process procedures of different types of case hardening methods: carburizing (gas, pack, liquid, vacuum, and plasma), nitriding (gas, liquid, plasma), carbonitriding, cyaniding and ferritic nitrocarburizing. An accurate and repeatable method of measuring case depth is essential for quality control of the case hardening process and for evaluation of workpieces for conformance with specifications. The article also discusses various case depth measurement methods, including chemical, mechanical, visual, and nondestructive methods.

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1998. "Case Hardening of Steel", Metals Handbook Desk Edition, Joseph R. Davis

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