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

被引：2

作者：

Wang JinCheng ^{[1
]}

Li JunJie ^{[1
]}

Yang YuJuan ^{[1
]}

Zhang YuXiang ^{[1
]}

Yang GenCang ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Porc, Xian 710072, Peoples R China

来源：

SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES | 2008年 / 51卷 / 04期

基金：

中国国家自然科学基金;

关键词：

directional solidification; phase field method; morphology evolution; stability;

D O I：

10.1007/s11431-008-0041-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

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.

引用

页码：362 / 370

页数：9

共 13 条

[1] Phase-field model of solidification of a binary alloy [J].

Bi, ZQ ;

Sekerka, RF .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1998, 261 (1-2) :95-106

[2] Phase field modeling of shallow cells during directional solidification of a binary alloy [J].

Bi, ZQ ;

Sekerka, RF .

JOURNAL OF CRYSTAL GROWTH, 2002, 237 :138-143

[3] Simulation of the cell to plane front transition during directional solidification at high velocity [J].

Boettinger, WJ ;

Warren, JA .

JOURNAL OF CRYSTAL GROWTH, 1999, 200 (3-4) :583-591

[4] Phase-field simulation of solidification [J].

Boettinger, WJ ;

Warren, JA ;

Beckermann, C ;

Karma, A .

ANNUAL REVIEW OF MATERIALS RESEARCH, 2002, 32 :163-194

[5] Phase-field simulation of structure evolution at high growth velocities during directional solidification of Ti55Al45 alloy [J].

Guo, JJ ;

Li, XZ ;

Su, YQ ;

Wu, SP ;

Li, BS ;

Fu, HZ .

INTERMETALLICS, 2005, 13 (3-4) :275-279

[6]

KURZ W, 1989, T TECH PUBLICATION, P117

[7] Quantitative phase field simulation of deep cells in directional solidification of an alloy [J].

Lan, CW ;

Shih, CJ ;

Lee, MH .

ACTA MATERIALIA, 2005, 53 (08) :2285-2294

[8] Long-time scale morphological dynamics near the onset of instability during directional solidification of an alloy [J].

Lan, CW ;

Shih, CJ ;

Hsu, WT .

JOURNAL OF CRYSTAL GROWTH, 2004, 264 (1-3) :379-384

[9] Efficient adaptive phase field simulation of directional solidification of a binary alloy [J].

Lan, CW ;

Chang, YC .

JOURNAL OF CRYSTAL GROWTH, 2003, 250 (3-4) :525-537

[10] Phase field modeling of directional solidification of a binary alloy at high velocities [J].

Li, ME ;

Yang, GC ;

Zhou, YH .

ACTA PHYSICA SINICA, 2005, 54 (01) :454-459

← 1 2 →