✦ LIBER ✦

Micromechanics of stress-induced martensitic transformation

✍ Scribed by T. Mori; E.C. Oliver; M.R. Daymond; P.J. Withers

Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 99 KB
Volume: 378
Category: Article
ISSN: 0921-5093
DOI: 10.1016/j.msea.2003.10.350

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✦ Synopsis

This work proposes that the structure of a twinned martensite plate is dependent upon temperature and stress. The uniaxial tensile stress required to induce the formation of a martensite plate is predicted to be smaller than that calculated under the assumption that the plate has a fixed structure subject to the criterion of invariant plane strain (IPS). Using a mean field method, the analysis is extended to non-dilute martensite volume fraction in order to obtain a stress-strain curve for the deformation of a single crystal. The curve shows a decrease in stress as transformation progresses. The implication of this result is discussed.

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