A phase field model and computer simulation of martensitic transformations in polyerystalline materials

被引：0

作者：

Artemev, A ^{[1
]}

Jin, YM ^{[1
]}

Khachaturyan, AG ^{[1
]}

机构：

[1] Carleton Univ, Dept Mech & Aerosp Engn, Ottawa, ON K1S 5B6, Canada

来源：

PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II | 2001年

关键词：

phase transformations; martensitic transformations; phase field models; micromechanics;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A three dimensional phase field model of the martensitic transformation in polycrystalline materials is presented. The model describes the system evolution by a kinetic equation of the Ginzburg-Landau type which explicitly takes into account the contribution of the transformation-induced coherency strain by using the phase field micromechanics theory. The model was used to simulate the martensitic transformation in single-crystals and polycrystals of Fe-Ni and Au-Cd alloys. Simulations performed for a wide range of undercoolings demonstrated that the volume fraction of the residual parent phase in the Fe-Ni system depended on the undercooling and a large undercooling was required for a complete transformation. Simulations showed that the crystallographic texture affected the development of the transformation. The effect of applied stress on the transformation was studied. The stress vs. strain curves with the hysteresis effect were obtained by the simulation of the structure evolution under applied stress.

引用

页码：1557 / 1560

页数：4