Finite element/experimental analysis of cavity nucleation in an Al-Si-Ge alloy

被引：15

作者：

Koenigsmann, HJ ^{[1
]}

Starke, EA ^{[1
]}

Allaire, PE ^{[1
]}

机构：

[1] UNIV VIRGINIA,DEPT MECH AEROSP & NUCL ENGN,CHARLOTTESVILLE,VA 22903

来源：

ACTA MATERIALIA | 1996年 / 44卷 / 08期

关键词：

D O I：

10.1016/1359-6454(95)00428-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cavity nucleation in a recently developed A1-0.55Si-2.02 Ge (wt%) alloy was studied by measuring the volume fraction of voids as a function of strain and precipitate diameter using a pycnometer. The finite element method was employed in order to calculate stress distributions around the SiGe precipitates for different precipitate diameters using both elasticity and plasticity models. This analysis allows a quantitative comparison between the experimental data and the prediction of a stress criterion for cavity nucleation based on the model developed by Brown and Stobbs. Copyright (C) 1996 Acta Metallurgica Inc.

引用

页码：3069 / 3075

页数：7

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