FATIGUE CRACK-PROPAGATION OF SINTERED SILICON-NITRIDE IN VACUUM AND AIR

被引：12

作者：

HORIBE, S

HIRAHARA, R

机构：

[1] National Research Institute for Metals, Tsukuba Laboratories, Tsukuba-City, Ibaraki

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 1991年 / 14卷 / 08期

关键词：

D O I：

10.1111/j.1460-2695.1991.tb00717.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Static and cyclic fatigue in vacuum and air have been investigated for pressureless sintered silicon nitride. Cyclic crack propagation occurred even in vacuum where environmental effects are negligible. Hence such damage is attributed to pure mechanical fatigue unaffected by environment. Crack growth occurs in air even below K(ISCC) and the growth rate is higher than in vacuum. Therefore, it is believed that cyclic crack growth in air is accelerated by stress corrosion cracking for a wide range of K(max) values.

引用

页码：863 / 870

页数：8

共 17 条

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