INFLUENCES OF STRENGTH AND NON-METALLIC INCLUSION ON THE FATIGUE CRACK PROPAGATION CHARACTERISTICS IN STRUCTURAL STEELS.

被引：1
|
作者：
Kobayashi, Kunihiko
Narumoto, Asao
Tanaka, Michihiro
Funakoshi, Tokushi
机构：
来源：
Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan | 1978年 / 64卷 / 07期
关键词：
IRON AND STEEL METALLOGRAPHY - Inclusions;
D O I：
10.2355/tetsutohagane1955.64.7_1072
中图分类号：
学科分类号：
摘要：
Fatigue crack propagation rates were obtained for steels having tensile strength levels ranging from 40 to 100 kg/mm**2. The constant m in Paris' formula, da/dN equals C( DELTA K)**m, decreased with increase in the yield strength of the steel. The influence of m on the fatigue crack propagation life was analysed for the case of center through-notched plate as well as part through-notched plate. The higher strength steels endured longer than the lower strength steels when cracks were large and/or stress ranges were high.
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页码：1072 / 1081
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