期刊文献+

Phase field simulation of the interface morphology evolution and its stability during directional solidification of binary alloys 被引量:4

Phase field simulation of the interface morphology evolution and its stability during directional solidification of binary alloys
原文传递
导出
摘要 The influences of pulling speed V and temperature gradient G on morphology evolution, concentration distribution, solute trapping and interface stability during directional solidification of binary alloys have been studied with the B-S phase field model. Simulated results reproduced the morphology transitions of deep cell to shallow cell and shallow cell to plane front. The primary cellular spacing, depth of groove and effective solute redistribution coefficient for different V and G are compared. The absolute stability under high pulling speed and high temperature gradient has also been predicted, which is in agreement with the Mullins-Sekerka (M-S) stability theory. The influences of pulling speed V and temperature gradient G on morphology evolution, concentration distribution, solute trapping and interface stability during directional solidification of binary alloys have been studied with the B-S phase field model. Simulated results reproduced the morphology transitions of deep cell to shallow cell and shallow cell to plane front. The primary cellular spacing, depth of groove and effective solute redistribution coefficient for different V and G are compared. The absolute stability under high pulling speed and high temperature gradient has also been predicted, which is in agreement with the Mullins-Sekerka (M-S) stability theory.
出处 《Science China(Technological Sciences)》 SCIE EI CAS 2008年第4期362-370,共9页 中国科学(技术科学英文版)
基金 Supported by the National Natural Science Foundation of China (Grant No. 50401013)
关键词 directional SOLIDIFICATION PHASE field method MORPHOLOGY evolution STABILITY directional solidification phase field method morphology evolution stability
  • 相关文献

参考文献14

  • 1李梅娥,杨根仓,周尧和.二元合金高速定向凝固过程的相场法数值模拟[J].物理学报,2005,54(1):454-459. 被引量:26
  • 2Mullins W W,Sekerka R F.Morphological stability of a particle growing by diffusion or heat flow. Journal of Applied Physics . 1963 被引量:1
  • 3Boettinger W J,Warren J A,Beckermann C, et al.Phase-field simulation of solidification. Ann Rev Mater Res . 2002 被引量:1
  • 4Guo J,Li X,Su Y.Phase-field simulation of structure evolution at high growth velocities during directional solidification of Ti55Al45 alloy. Intermetalics . 2004 被引量:1
  • 5Kurz W,Fisher D J.Fundamentals of Solidification. . 1989 被引量:1
  • 6Warren J A,Langer J S.Prediction of dendritic spacings in a directional-solidification experiment. Physical Review E Statistical Nonlinear and Soft Matter Physics . 1993 被引量:1
  • 7William J. Boettinger and James A. Warren*.Simulation of the cell to plane front transition during directional solidification at high velocity. Journal of Crystal Growth . 1999 被引量:1
  • 8Lan C W,Chang Y C.Efficient adaptive phase field simulation of directional solidification of a binary alloy. Journal of Crystal Growth . 2003 被引量:1
  • 9C. W. Lan,,C. J. Shih and W. T. Hsu.Long-time scale morphological dynamics near the onset of instability during directional solidification of an alloy. Journal of Crystal Growth . 2004 被引量:1
  • 10C.W. Lan C.J. Shih and M.H. Lee.Quantitative phase field simulation of deep cells in directional solidification of an alloy. Acta Materialia . 2005 被引量:1

二级参考文献10

共引文献25

同被引文献21

引证文献4

二级引证文献14

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部