Phase-field modeling of faceted growth in solidification of alloys

被引：0

作者：

邢辉 ^{[1
]}

安琪 ^{[1
]}

董祥雷 ^{[2
]}

韩永生 ^{[3
]}

机构：

[1] The Key Laboratory of Space Applied Physics and Chemistry,Northwestern Polytechnical University

[2] College of Materials Science and Engineering,Zhengzhou University

[3] The EMMS Group,State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences

来源：

Chinese Physics B | 2022年 / 31卷 / 04期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

TG111.4 [金属的液体结构和凝固理论];

学科分类号：

0702 ; 070205 ;

摘要：

A regularization of the surface tension anisotropic function used in vapor-liquid-solid nanowire growth was introduced into the quantitative phase-field model to simulate the faceted growth in solidification of alloys.Predicted results show that the value of δ can only affect the region near the tip,and the convergence with respect to δ can be achieved with the decrease of δ near the tip.It can be found that the steady growth velocity is not a mo no tonic function of the cusp amplitude,and the maximum value is approximately at ε=0.8 when the supersaturation is fixed.Moreover,the growth velocity is an increasing function of supersaturation with the morphological transition from facet to dendrite.

引用

页码：796 / 799

页数：4

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