Title

Age Strengthening of Cast Irons: Review of Research and Literature

Abstract

Since 1997, AFS has supported a number of studies to improve the understanding of the age strengthening in gray cast iron. This has resulted in a series of publications and presentations that address aging behavior in a piecemeal fashion. The purpose of this paper is to knit together those pieces in the context of the literature on age strengthening in ferrous alloys. The conclusion reached from these studies is that the age strengthening is a nitride precipitation process described by Avrami-Johnson-Mehl kinetics. Keywords: cast iron, age strengthening, aging, nitrides, machinability

Department(s)

Materials Science and Engineering

Keywords and Phrases

Iron; Strengthening Mechanism in Solids; Iron Alloys; Metals - Hardenability; Strength of Materials; Metals - Quenching; Physical Metallurgy; Molding (Chemical Technology); Cast-Iron - Analysis

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2010 American Foundry Society (AFS), All rights reserved.

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