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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 451-454 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 68 |
| Issue number | 7 |
| DOIs | |
| State | Published - Apr 1 2013 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
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Phase field model of deformation twinning in tantalum : Parameterization via molecular dynamics. / Gu, Yijia; Chen, Long-qing; Heo, Tae Wook; Sandoval, Luis; Belak, James.
In: Scripta Materialia, Vol. 68, No. 7, 01.04.2013, p. 451-454.Research output: Contribution to journal › Article
TY - JOUR
T1 - Phase field model of deformation twinning in tantalum
T2 - Parameterization via molecular dynamics
AU - Gu, Yijia
AU - Chen, Long-qing
AU - Heo, Tae Wook
AU - Sandoval, Luis
AU - Belak, James
PY - 2013/4/1
Y1 - 2013/4/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84872781936&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872781936&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2012.11.022
DO - 10.1016/j.scriptamat.2012.11.022
M3 - Article
VL - 68
SP - 451
EP - 454
JO - Scripta Materialia
JF - Scripta Materialia
SN - 1359-6462
IS - 7
ER -