Austenite grain size and the martensite-start temperature

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 2009 English Publisher:Elsevier BVJournal:Scripta Materialia, volume 60, pages 493-495 (issn: 1359-6462,

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Authors: H YANG; H BHADESHIA;

doi: 10.1016/j.scriptamat.2008.11.043

Austenite grain size and the martensite-start temperature

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Abstract

New experimental evidence confirms the dependence of the martensite-start temperature on the austenite grain size. The Fisher model for the geometrical partitioning of austenite grains by plates of martensite is used here to develop a theory to explain the observations, based on the ability to detect transformation as a function of the austenite grain size. The relationship derived has been tested on a range of published data.

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University of Cambridge
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Pohang University of Science and Technology
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Graduate Institute of Ferrous Technology
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