Case Hardening of Steel
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.
Case Hardening of Steel, Metals Handbook Desk Edition, 2nd Ed., 2nd ed., Edited By Joseph R. Davis, ASM International, 1998, p 982–995, https://doi.org/10.31399/asm.hb.mhde2.a0003197
Download citation file:
FALL / WINTER 2020 CATALOG
View the new, upcoming, and best-selling resources in ASM Handbooks, technical books, and databases in the Fall / Winter 2020 Catalog.