A phase field model for simulating the precipitation of multi-variant β-Mg17Al12 in Mg-Al-based alloys

被引：37
|
作者：
Han, Guomin [1 ]
Han, Zhiqiang [1 ]
Luo, Alan A. [2 ]
Sachdev, Anil K. [2 ]
Liu, Baicheng [1 ,3 ]
机构：
[1] Tsinghua Univ, Dept Mech Engn, Minist Educ, Key Lab Adv Mat Proc Technol, Beijing 100084, Peoples R China
[2] Gen Motors Global Res & Dev Ctr, Chem & Mat Syst Lab, Warren, MI 48090 USA
[3] Tsinghua Univ, Dept Automot Engn, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China
来源：
SCRIPTA MATERIALIA | 2013年 / 68卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Mg-Al-based alloys; Multi-variant precipitation; Phase-field model; Elastic strain energy; Interface anisotropy; BINARY-ALLOYS; MAGNESIUM;
D O I：
10.1016/j.scriptamat.2013.01.018
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A phase field model for simulating the precipitation of multi-variant beta-Mg17Al12, phase during the aging process of Mg-Al-based alloys was developed in which the interface anisotropy and the elastic strain energy were taken into account. A special numerical technique based on a hexagonal and an orthogonal mesh was employed to deal with the precipitate orientation and calculate the elastic strain energy. The model reveals the contribution of the interface anisotropy and the elastic strain energy in the evolution of the precipitates. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：691 / 694
页数：4
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