Modelling of grain boundary impurity segregation during high temperature plastic deformation |
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| Authors: | CHEN XianMiao & SONG ShenHua |
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| Institution: | CHEN XianMiao & SONG ShenHua* Department of Materials Science and Engineering,Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen 518055,China |
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| Abstract: | A modified theoretical model is proposed to predict the grain boundary segregation of impurity atoms during high temperature plastic deformation. The model is based on the supersaturated vacancy-impurity complex created by plastic deformation and involves quasi-thermodynamics and kinetics. Model predictions are made for phosphorus grain boundary segregation during plastic deformation in ferrite steel. The results reveal that phosphorus segregates at grain boundaries during plastic deformation. At a given te... |
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| Keywords: | grain boundary non-equilibrium segregation plastic deformation |
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