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Solute diffusion during high-temperature plastic deformation in alloys
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DOI：10.1016/j.msea.2011.06.015.png)
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Abstract
En 中文
Solute volume diffusion during high-temperature plastic deformation in a substitutional solid solution alloy is analyzed theoretically. Both deformation-induced supersaturated vacancy enhanced diffusion effect and dislocation pipe diffusion effect are considered in the model. The model is applied to the prediction of deformation-enhanced phosphorus diffusion in gamma-Fe. Deformation-induced supersaturated vacancy enhanced diffusion and pipe diffusion can both enhance the overall phosphorus diffusion coefficient, but the former effect plays a predominant role. At a certain temperature, the deformation-enhanced phosphorus diffusion coefficient is mainly dependent on strain and strain rate, and at each strain rate there is a steady state value for the enhanced diffusion coefficient. (C) 2011 Elsevier BM. All rights reserved.
Keywords:
Deformation
Defects
Diffusion
Alloy
Journal
M
IF:
7
Papers:
3.7W
Citations:
13.8W