FRACTURE-TOUGHNESS TESTING OF HARDMETALS USING COMPRESSION-COMPRESSION PRECRACKING

被引：24

作者：

JAMES, MN ^{[1
]}

HUMAN, AM ^{[1
]}

LUYCKX, S ^{[1
]}

机构：

[1] UNIV WITWATERSRAND, SCHONLAND RES CTR, WITWATERSRAND 2050, SOUTH AFRICA

来源：

JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 11期

关键词：

D O I：

10.1007/BF01129946

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Compression-compression precracking of brittle materials has recently been applied to fracture toughness testing. This paper reports the results of an experimental programme of fracture toughness testing of a WC-Co alloy containing 10% cobalt by weight. Tests were performed on specimens precracked by cyclic compression and on specimens in which this compression-compression precrack was subsequently extended by tensile fatigue. Toughness data obtained in this way were compared with the results of short-rod toughness tests. The causes of differences etween these various data are discussed. © 1990 Chapman and Hall Ltd.

引用

页码：4810 / 4814

页数：5

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