Landau theory for shape memory polycrystals

被引：79

作者：

Ahluwalia, R ^{[1
]}

Lookman, T ^{[1
]}

Saxena, A ^{[1
]}

Albers, RC ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

来源：

ACTA MATERIALIA | 2004年 / 52卷 / 01期

关键词：

shape memory; martensites; polycrystals; stress-strain response; Landau theory;

D O I：

10.1016/j.actamat.2003.09.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose a Ginzburg-Landau theory for the elastic properties of shape memory polycrystals. A single crystal elastic free energy for a system that undergoes a square-to-rectangle transformation is generalized to a polycrystal by introducing a crystal orientational field that is deter-mined from a continuum phase-field model. The coupled system is used to study domain morphology and mechanical properties of shape memory alloys in different temperature regimes. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：209 / 218

页数：10

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