STUDY ON THE EFFECT OF STACKING-FAULT ENERGY ON FATIGUE CRACK-PROPAGATION AS DEDUCED FROM DISLOCATION PATTERNS

被引：31

作者：

AWATANI, J

KATAGIRI, K

KOYANAGI, K

机构：

[1] Osaka University, Osaka, Suita

来源：

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1979年 / 10卷 / 04期

关键词：

D O I：

10.1007/BF02697078

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fatigue tests of crack growth rates and transmission electron microscopy in the immediate vicinity of crack tips were performed on specimens of copper and 70/30 brass. In brass, very dense dislocations accumulated on the primary and the conjugate slip planes were observed just ahead of the crack tips, and they appeared to be not easy to move because of the difficulty of cross slip. In copper, well-defined cells were observed around the crack tips and there were frequently found cracks propagating along or across cell boundaries. On the basis of these observation results, an interpretation is put on the effect of stacking fault energy on fatigue crack growth. © 1979 American Society For Metals And The Metallurgical Society of AIME.

引用

页码：503 / 507

页数：5

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