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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

Heat Treating of Gray Irons[1]

By
J.L. Dossett
J.L. Dossett
Revising author
Consultant
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C.V. White
C.V. White
Revising author
Kettering University
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Published:
2014
Page range:
493 - 507
Publication history
October 30, 2014

Abstract

Gray irons are a group of cast irons that form flake graphite during solidification, in contrast to the spheroidal graphite morphology of ductile irons. The heat treatment of gray irons can considerably alter the matrix microstructure with little or no effect on the size and shape of the graphite achieved during casting. This article provides a detailed account of classes of gray iron, and heat treating methods of gray irons with examples. These methods include stress relieving, annealing, normalizing, transformation hardening, austenitizing, quenching, austempering, martempering, flame hardening, induction hardening, and nitriding.

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J.L. Dossett, C.V. White, 2014. "Heat Treating of Gray Irons", Heat Treating of Irons and Steels, Jon L. Dossett, George E. Totten

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