Article ID Journal Published Year Pages File Type
1499431 Scripta Materialia 2013 4 Pages PDF
Abstract

We present a phase field model to simulate the microstructure evolution during deformation twinning in tantalum. An order parameter, proportional to the shear strain, is employed to monitor the twinning process. The evolution of the order parameter is governed by a time-dependent Ginzburg–Landau equation, the parameters of which are determined by molecular dynamics with a model-generalized pseudopotential-theory potential. The twinning process is studied under a number of deformation conditions, and compared with the molecular dynamics counterpart.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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