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ASM Handbook

Heat Treating of Irons and Steels

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
4D
ISBN electronic:
978-1-62708-168-9
Publication date:
2014
Book Chapter

Microstructures and Properties of Carburized Steels[1]

By
George Krauss
George Krauss
Advanced Steel Processing and Products Research Center, Colorado School of Mines
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Published:
2014
Page range:
76 - 87
Publication history
October 30, 2014

Abstract

This article describes the microstructure, properties, and performance of carburized steels, and elucidates the microstructural gradients associated with carbon and hardness gradients. It provides information on case depth measurement, the factors affecting case depth, and the formation and causes of microcracks. The article discusses the effects of alloying elements on hardenability, the effects of excessive retained austenite and massive carbides on fatigue resistance, the effects of residual stresses and internal oxidation on fatigue performance of carburized steels. In addition, the causes of intergranular fracture at austenite grain boundaries and their prevention methods are explored. The article also describes the major mechanisms of bending fatigue crack initiation in carburized steels.

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George Krauss, 2014. "Microstructures and Properties of Carburized Steels", Heat Treating of Irons and Steels, Jon L. Dossett, George E. Totten

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