A phase-field model for rapid solidification with non-equilibrium solute diffusion

Hai Feng Wang, Cun Lai, Xiao Zhang, Kuang Wang, Feng Liu

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Abstract. Since the growth velocity can be comparable with or even larger than the solute diffusion velocity in the bulk phases, modeling of rapid solidification with non-equilibrium solute diffusion becomes quite an important topic. In this paper, an effective mobility approach was proposed to derive the current phase-field model (PFM). In contrast with the previous PFMs that were derived by the so-called kinetic energy approach, diffusionless solidification happens not only in the bulk phases but also inside the interface when the growth velocity is equal to the solute diffusion velocity in liquid. A good agreement between the model predictions and experimental results is obtained for rapid solidification of Si-9at.%As alloy.

源语言英语
主期刊名Basic Research of Materials
编辑Yafang Han, Xuefeng Liu, Ying Wu
出版商Trans Tech Publications Ltd
14-20
页数7
ISBN(电子版)9783038353966
DOI
出版状态已出版 - 2015
活动Chinese Materials Congress, CMC 2014 - Chengdu, 中国
期限: 4 7月 20147 7月 2014

出版系列

姓名Materials Science Forum
817
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议Chinese Materials Congress, CMC 2014
国家/地区中国
Chengdu
时期4/07/147/07/14

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