Multi-phase-field study of the effects of anisotropic grain-boundary properties on polycrystalline grain growth

2017 ◽  
Vol 474 ◽  
pp. 160-165 ◽  
Author(s):  
Eisuke Miyoshi ◽  
Tomohiro Takaki
Keyword(s):  
Grain Boundary ◽  
Field Study ◽  
Grain Growth ◽  
Phase Field ◽  
Boundary Properties ◽  
Multi Phase

Large-scale multi-phase-field simulation of grain growth with anisotropic grain boundary properties

2019 ◽  
Vol 2019.32 (0) ◽  
pp. 049
Author(s):  
Eisuke MIYOSHI ◽  
Tomohiro TAKAKI ◽  
Munekazu Ohno ◽  
Yasushi SHIBUTA ◽  
Shinji SAKANE ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Grain Growth ◽  
Phase Field ◽  
Large Scale ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Boundary Properties ◽  
Multi Phase

Dual Scale Simulation of Grain Growth Using a Multi Phase Field Model

2001 ◽  
Vol 677 ◽  
Author(s):  
Ingo Steinbach ◽  
Markus Apel
Keyword(s):  
Grain Boundary ◽  
Grain Growth ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Individual Characteristics ◽  
Interfacial Stress ◽  
Pinning Force ◽  
Pinning Effect ◽  
Multi Phase

ABSTRACTThe kinetics of grain growth in multicrystalline materials is determined by the interplay of curvature driven grain boundary motion and interfacial stress balance at the vertices of the grain boundaries. A comprehensive way to treat both effects in one model is given by the time dependent Ginzburg Landau model or phase field model. The paper presents the application of a multi phase field model, recently developed for solidification processes to grain growth of a multicrystalline structure. The specific feature of this multi phase field model is its ability to treat each grain boundary with its individual characteristics dependent on the type of the grain boundary, its orientation or the local pinning at precipitates. The pinning effect is simulated on the nanometer scale resolving the interaction of an individual precipitate with a curved grain boundary. From these simulations an effective pinning force is deduced and a model of driving force dependent grain boundary mobility is formulated accounting for the pinning effect on the mesoscopic scale of the grain growth simulation. 2-D grain growth simulations are presented.

Sign in / Sign up

Export Citation Format

Share Document