| 组织状态对循环冲击及非冲击载荷下裂纹扩展的影响 |
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| 引用本文： | 于杰,金志浩,涂铭旌,周惠久.组织状态对循环冲击及非冲击载荷下裂纹扩展的影响[J].热加工工艺,1991(4). |
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| 作者姓名： | 于杰 金志浩 涂铭旌 周惠久 |
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| 作者单位： | 贵州工学院冶金系
(于杰，金志浩)，西安交通大学材料系
(涂铭旌)，西安交通大学材料系(周惠久) |
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| 摘 要： | 本文对10~#钢和45CrNi合金钢的几种组织状态分别进行了冲击疲劳及非冲击疲劳裂纹扩展试验,结果表明:45CrNi的组织状态对冲击疲劳裂纹扩展的影响较对非冲击疲劳的大;10~#钢的组织状态对两种载荷下的裂纹扩展基本上无影响。结合微观机制和载荷特性,讨论了组织因素对冲击、非冲击疲劳裂纹扩展的影响。
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| 关 键 词： | 冲击疲劳 非冲击疲劳 组织效应 |
Effects of Microstructure on the Crack Propagation under Impact and Nonimpact Fatigue Load |
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| Yu Jie Jin Zhihao To Mingjing Zhou Huijiu.Effects of Microstructure on the Crack Propagation under Impact and Nonimpact Fatigue Load[J].Hot Working Technology,1991(4). |
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| Authors: | Yu Jie Jin Zhihao To Mingjing Zhou Huijiu |
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| Affiliation: | Yu Jie Jin Zhihao To Mingjing Zhou Huijiu |
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| Abstract: | Cract propagation in impact and non-impact fatigue test were studied using a low carbon steel 10~# and 45CrNi alloy steel in different heat-treatment conditions. Based on microfracture mechanism and load character, the effect of microstructure on the cract propagation in impact and non-impact fatigue was discussed. |
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| Keywords: | Impact fatigue Non-impact fatigue Microstructure |
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