| 缺口对金属陶瓷热冲击疲劳的影响 |
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| 引用本文： | 刘宁,李健.缺口对金属陶瓷热冲击疲劳的影响[J].矿冶工程,1997,17(2):76-78. |
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| 作者姓名： | 刘宁 李健 |
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| 作者单位： | 安徽工学院材料系，机械科学研究院 |
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| 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，裂纹扩展速率最慢
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| 关 键 词： | 缺口 金属陶瓷 热冲击疲劳 |
EFFECT OF NOTCH ON THE THERMAL SHOCK FATIGUE BEHAVIOR OF CERMETS |
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| Abstract: | 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. |
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| Keywords: | Notch Cermets Thermal shock fatigue |
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