Effective elastic properties of polycrystals based on phase-field description

被引：14

作者：

Sheng, G. ^{[1
]}

Bhattacharyya, S. ^{[1
]}

Zhang, H. ^{[1
]}

Chang, K. ^{[1
]}

Shang, S. L. ^{[1
]}

Mathaudhu, S. N. ^{[2
]}

Liu, Z. K. ^{[1
]}

Chen, L. Q. ^{[1
]}

机构：

[1] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[2] USA, Res Lab, Mat & Mfg Sci Div, Aberdeen Proving Ground, MD 21005 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 554卷

基金：

美国国家科学基金会;

关键词：

Phase-field models; Magnesium; Simulation; Elastic behavior; Polycrystal; COMPUTER-SIMULATION; SINGLE-CRYSTAL; MAGNESIUM ALLOYS; CONSTANTS; MODEL; MICROSTRUCTURES; COMPUTATION; EVOLUTION;

D O I：

10.1016/j.msea.2012.06.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A combination of microelasticity, phase-field description of grain structures, and first-principles calculations is proposed to predict the effective elastic properties of polycrystals. As an example, using the single crystal elastic constants from first-principles calculations and a polycrystalline microstructure from a phase-field simulation as inputs, the effective elastic moduli of polycrystalline magnesium are obtained as a function of temperature and compared with available experimental measurements. The texture effect on the effective elastic moduli is also examined. The proposed integrated model will make it possible to model not only the temporal evolution of microstructures but also the temporal evolution of properties using the phase-field method. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：67 / 71

页数：5

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