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ASM Desk Editions

Metals Handbook Desk Edition

Edited by
Joseph R. Davis
Joseph R. Davis
Davis & Associates
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ASM International
ISBN electronic:
978-1-62708-199-3
Publication date:
1998
Book Chapter

Structure/Property Relationships in Irons and Steels

By
Bruce L. Bramfitt
Bruce L. Bramfitt
Homer Research Laboratories, Bethlehem Steel Corporation
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Published:
1998
Page range:
153 - 173

Abstract

The properties of irons and steels are linked to the chemical composition, processing path, and resulting microstructure of the material. For a particular iron and steel composition, most properties depend on microstructure. Processing is a means to develop and control microstructure, for example, hot rolling, quenching, and so forth. This article describes the role of these factors in both theoretical and practical terms, with particular focus on the role of microstructure. It lists the mechanical properties of selected steels in various heat-treated or cold-worked conditions. In steels and cast irons, the microstructural constituents have the names ferrite, pearlite, bainite, martensite, cementite, and austenite. The article presents four examples that have very different microstructures: the structural steel has a ferrite plus pearlite microstructure; the rail steel has a fully pearlitic microstructure; the machine housing has a ferrite plus pearlite matrix with graphite flakes; and the jaw crusher microstructure contains martensite and cementite.

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Bruce L. Bramfitt, 1998. "Structure/Property Relationships in Irons and Steels", Metals Handbook Desk Edition, Joseph R. Davis

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