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Landau Theory For Shape Memory Polycrystals

Rajeev Ahluwalia·Turab Lookman·Avadh Saxena·Robert C Albers
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Abstract

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 determined 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.

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Rajeev Ahluwalia, Turab Lookman, Avadh Saxena, Robert C Albers. 2003-09-08. Landau Theory For Shape Memory Polycrystals. https://arxiv.org/abs/cond-mat/0309206

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