Effect of geometry and volume fraction of fibers on creep in short fiber reinforced aluminum alloys

被引：11

作者：

Phillips, J

Staubach, M

Skrotzki, B

Eggeler, G

机构：

[1] RUHR UNIV BOCHUM,INST WERKSTOFFE WERKSTOFFWISSENSCH,D-44780 BOCHUM,GERMANY

[2] ECOLE POLYTECH FED LAUSANNE,LAB MET MECAN,CH-1015 LAUSANNE,SWITZERLAND

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1997年 / 234卷

关键词：

micromechanical model; creep; metal matrix composite; fiber volume fraction;

D O I：

10.1016/S0921-5093(97)00199-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Creep in short fiber reinforced aluminum alloys is a result of three interconnected elementary microstructural processes: (i) loading of fibers by dislocations; (ii) unloading of fibers by a recovery process in which dislocation loops move to the fiber ends; and (iii) fiber breakage. The present work supports this view in showing that a model which is based on this microstructural scenario can successfully predict the creep behavior of short fiber reinforced aluminum matrix composites with different fiber volume fractions. The present work also addresses the influence of the fiber aspect ratio distribution on the creep process. (C) 1997 Elsevier Science S.A.

引用

页码：401 / 405

页数：5

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