Effect of anisotropy in thermal conductivity on grain boundary migration under temperature gradient – A phase field study

2021 ◽  
pp. 130517
Author(s):  
Shuibao Liang ◽  
Cheng Wei ◽  
Changbo Ke
Keyword(s):  
Thermal Conductivity ◽  
Temperature Gradient ◽  
Grain Boundary ◽  
Field Study ◽  
Phase Field ◽  
Boundary Migration ◽  
Grain Boundary Migration

scholarly journals A phase field model of grain boundary migration and grain rotation under elasto–plastic anisotropies

2019 ◽  
Vol 178-179 ◽  
pp. 1-18 ◽  
Author(s):  
Jakub Mikula ◽  
Shailendra P. Joshi ◽  
Tong-Earn Tay ◽  
Rajeev Ahluwalia ◽  
Siu Sin Quek
Keyword(s):  
Grain Boundary ◽  
Phase Field ◽  
Field Model ◽  
Boundary Migration ◽  
Phase Field Model ◽  
Grain Boundary Migration ◽  
Grain Rotation

Phase Field Study of Second Phase Particles-Pinning on Strain Induced Grain Boundary Migration

2020 ◽  
Vol 993 ◽  
pp. 967-975
Author(s):  
Kai Li ◽  
Yao Shen ◽  
Da Yong Li ◽  
Ying Hong Peng
Keyword(s):  
Grain Boundary ◽  
Phase Field ◽  
Boundary Migration ◽  
Phase Field Model ◽  
Energy Difference ◽  
Second Phase ◽  
Grain Boundary Migration ◽  
Stored Energy ◽  
Second Phase Particles ◽  
Theoretical Predictions

A phase field model was presented to investigate the effect of particles-pinning on grain boundary migration in materials containing stored energy differences across the grain boundaries. The accuracy of the phase field framework was examined by comparing the simulated results with theoretical predictions. The pinning effects of coherent and non-coherent second phase particles on the boundary migration were studied in triple-grain models. 2D simulations with second phase particles of different sizes or different area fractions were performed. The effect of stored energy difference across the boundary on the particles-pinning was also investigated. The results showed that the pinning effect could be enhanced by the decrement of the particle size and the increment of particle area fraction. Increasing the stored energy difference across the grain boundary induced higher grain boundary migration velocity and weaker particles-pinning.

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