FRACTURE MECHANISMS OF FIBER-REINFORCED TITANIUM-ALLOY MATRIX COMPOSITES .2. TENSILE BEHAVIOR

被引：51

作者：

JENG, SM

YANG, JM

YANG, CJ

机构：

[1] Department of Materials Science and Engineering, University of California, Los Angeles

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1991年 / 138卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0921-5093(91)90686-H

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The mechanical properties and deformation mechanisms of several unidirectional SCS-6 fiber-reinforced titanium alloy matrix composites under tensile loading were studied. Three different titanium alloys were used as matrix materials: Ti-6Al-4V, Ti-15V-3Al-3Cr-3Sn and Ti-35Al-10Nb. The key microstructural parameters which dominate the stress-strain response, damage initiation, damage growth and fracture behavior of the composites were identified. The strength and Weibull modulus of the interfacial reaction layer as a function of its thickness were also quantified. Finally, the tensile fracture mechanisms near the interface region were classified on the basis of the ratio of fiber strength (sigma-f) to interfacial shear strength (tau-i) vs. matrix toughness.

引用

页码：169 / 180

页数：12

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