摘要
缺口对４０％ＮｉＴｉ（Ｃ，Ｎ）金属陶瓷热冲击疲劳有很大影响，缺口试样裂纹形核孕育期均短于无缺口试样；随缺口角度的增加，裂纹扩展速率增加，对于２０℃水、２０号机油和１０％聚乙稀醇（ＰＶＡ）水溶液３种冷却介质，后者的裂纹孕育期最长。
The effect of notch on the thermal shock fatigue behavior of cermets has been studied. The results have shown that the notch has great influence on the thermal shock fatigue behavior. The incubation period of crack nucleation of notched specimens is shorter than that of conventional ones. The propagation rate of crack increases with increasing the notch angle.
出处
《矿冶工程》
CAS
CSCD
北大核心
1997年第2期76-78,共3页
Mining and Metallurgical Engineering
关键词
缺口
金属陶瓷
热冲击
疲劳
Notch, Cermets, Thermal shock fatigue
