SUPERPLASTIC DEFORMATION MECHANISM ACCOMMODATED BY THE LIQUID-PHASE IN METAL-MATRIX COMPOSITES

被引：95

作者：

MABUCHI, M ^{[1
]}

HIGASHI, K ^{[1
]}

机构：

[1] UNIV OSAKA PREFECTURE,COLL ENGN,DEPT MECH SYST ENGN,SAKAI,OSAKA 593,JAPAN

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1994年 / 70卷 / 01期

关键词：

D O I：

10.1080/09500839408243864

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The accommodation processes for superplastic metal matrix composites are required to release the stress concentration near matrix-reinforcement interfaces because of stress concentration caused by interfacial sliding. An optimum superplastic elongation was found at the temperature where local melting of interfaces was confirmed by in situ transmission electron microscopy observation. It is postulated that superplastic flow in metal matrix composites is controlled by a grain-boundary sliding mechanism accommodated with relaxing the stress concentration by an isolated liquid phase at matrix-reinforcement interfaces.

引用

页码：1 / 6

页数：6

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