ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
An Analysis of the Transition between Strain Dependent and Independent Softening in Austenite
Mark R. CARTMILLMatthew R. BARNETTSaden H. ZAHIRIPeter D. HODGSON
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2005 Volume 45 Issue 12 Pages 1903-1908

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Abstract

The post-deformation softening behaviour of austenite has been studied for various compositions and deformation conditions. The strain at which the transition from strain dependent to strain independent post-deformation softening behaviour occurs (ε*) has been found to coincide closely with the strain to the peak stress (εp) under certain conditions but not under others. It has been proposed that the relationship between ε* and εp may be described geometrically using the initial grain size and the dynamically recrystallised grain size.

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© 2005 by The Iron and Steel Institute of Japan
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