Microstructure based modeling of β phase influence on mechanical response of cast AM series Mg alloys

被引：10

作者：

Barker, E. I. ^{[1
]}

Choi, K. S. ^{[1
]}

Sun, X. ^{[1
]}

Deda, E. ^{[2
]}

Allison, J. ^{[2
]}

Li, M. ^{[3
]}

Forsmark, J. ^{[3
]}

Zindel, J. ^{[3
]}

Godlewski, L. ^{[3
]}

机构：

[1] Pacific NW Natl Lab, Computat Sci & Math Div, Richland, WA 99352 USA

[2] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA

[3] Ford Motor Co, Ford Res & Adv Engn Lab, Dearborn, MI 48124 USA

来源：

COMPUTATIONAL MATERIALS SCIENCE | 2014年 / 92卷

关键词：

Cast magnesium alloys; Microstructure; Plasticity; Eutectic phase; Volume fraction; Morphology; MAGNESIUM; PRESSURE; BEHAVIOR;

D O I：

10.1016/j.commatsci.2014.03.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Understanding the impact of microstructural features on bulk response is key to improving the properties of AM series cast Mg alloys for more widespread use and for moving towards truly predicting modeling capabilities. This study focuses on modeling the volume fraction and morphology of beta phase within the microstructure of cast AM series Mg alloys and quantifying its impact on bulk performance. Finite element results are validated against experimental tensile tests of AM40 and AM70. Digital microstructures with fully connected beta phase morphologies are shown to increase hardening versus less connected, clumped morphologies. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：353 / 361

页数：9

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