Three-dimensional phase field simulation of the effect of anisotropy in grain-boundary mobility on growth kinetics and morphology of grain structure

2007 ◽  
Vol 40 (1) ◽  
pp. 40-50 ◽  
Author(s):  
Yoshihiro Suwa ◽  
Yoshiyuki Saito ◽  
Hidehiro Onodera
Keyword(s):  
Grain Boundary ◽  
Growth Kinetics ◽  
Phase Field ◽  
Three Dimensional ◽  
Grain Structure ◽  
Boundary Mobility ◽  
Phase Field Simulation ◽  
Grain Boundary Mobility ◽  
Field Simulation

scholarly journals The Influence of Mg-Based Inclusions on the Grain Boundary Mobility of Austenite in SS400 Steel

Metals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 370
Author(s):  
Chih-Ting Lai ◽  
Hsuan-Hao Lai ◽  
Yen-Hao Su ◽  
Fei-Ya Huang ◽  
Chi-Kang Lin ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Grain Growth ◽  
High Temperatures ◽  
Growth Curves ◽  
Solute Drag ◽  
Grain Structure ◽  
Growth Equation ◽  
Boundary Mobility ◽  
Grain Boundary Mobility ◽  
Boundary Velocity

In this study, the effects of the addition of Mg to the grain growth of austenite and the magnesium-based inclusions to mobility were investigated in SS400 steel at high temperatures. A high-temperature confocal scanning laser microscope (HT-CSLM) was employed to directly observe, in situ, the grain structure of austenite under 25 torr Ar at high temperatures. The grain size distribution of austenite showed the log-normal distribution. The results of the grain growth curves using 3D surface fitting showed that the n and Q values of the growth equation parameters ranged from 0.2 to 0.26 and from 405 kJ/mole to 752 kJ/mole, respectively, when adding 5.6–22 ppm of Mg. Increasing the temperature from 1150 to 1250 °C for 20 min and increasing the addition of Mg by 5.6, 11, and 22 ppm resulted in increases in the grain boundary velocity. The effects of solute drag and Zener pinning on grain boundary mobility were also calculated in this study.

Correlation between three-dimensional and cross-sectional characteristics of ideal grain growth: large-scale phase-field simulation study

2018 ◽  
Vol 53 (21) ◽  
pp. 15165-15180 ◽  
Author(s):  
Eisuke Miyoshi ◽  
Tomohiro Takaki ◽  
Munekazu Ohno ◽  
Yasushi Shibuta ◽  
Shinji Sakane ◽  
...  
Keyword(s):  
Grain Growth ◽  
Simulation Study ◽  
Phase Field ◽  
Large Scale ◽  
Three Dimensional ◽  
Cross Sectional ◽  
Phase Field Simulation ◽  
Field Simulation

scholarly journals Three dimensional thermal-solute phase field simulation of binary alloy solidification

2015 ◽  
Vol 287 ◽  
pp. 130-150 ◽  
Author(s):  
P.C. Bollada ◽  
C.E. Goodyer ◽  
P.K. Jimack ◽  
A.M. Mullis ◽  
F.W. Yang
Keyword(s):  
Binary Alloy ◽  
Phase Field ◽  
Three Dimensional ◽  
Alloy Solidification ◽  
Phase Field Simulation ◽  
Field Simulation
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