| 疲劳裂纹扩展的门槛值研究 |
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| 引用本文： | 何子淑,粱益龙,凌敏.疲劳裂纹扩展的门槛值研究[J].贵州工业大学学报(自然科学版),2007,36(3):21-23. |
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| 作者姓名： | 何子淑 粱益龙 凌敏 |
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| 作者单位： | 1. 贵州科技工程职业学院,贵州贵阳550008
2. 贵州大学材料科学与冶金工程学院,贵州贵阳550003 |
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| 摘 要： | 通过对35SiMnMoV复相钢的常温疲劳试验研究和GH4049镍基高温合金的高温疲劳试验研究,获得了大量的试验数据并得出了相应的裂纹扩展行为规律。采用对比分析方法,从疲劳裂纹的门槛值角度出发,归纳总结了疲劳裂纹的扩展规律。
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| 关 键 词： | 35SiMnMoV复相钢 GH4049镍基高温合金 对比分析 门槛值 疲劳裂纹 扩展规律 |
| 文章编号： | 1009-0193（2007）03-0021-03 |
| 修稿时间： | 2006-11-24 |
Study on the Threshold of Small Fatigue Cracks |
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| HE Zi-shu,LIANG Yi-long,LING Min.Study on the Threshold of Small Fatigue Cracks[J].Journal of Guizhou University of Technology(Natural Science Edition),2007,36(3):21-23. |
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| Authors: | HE Zi-shu LIANG Yi-long LING Min |
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| Institution: | 1. Guizhou Science and Technology Professional College,Guiyang 550008, China;2. College of Materials Science and Metallurgical Engineering, Guizhou University, Guiyang 550003 ,China |
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| Abstract: | The fatigue test of 35SiMnMoV steel at normal temperature and the test Ni-base super alloy GH4049 at high temperature were studied.During the studies,a number of trial data and development regulation of small fatigue cracks were obtained.In contrast with the threshold of fatigue cracks,a series of regulation of expanding of fatigue small cracks has been deduced. |
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| Keywords: | 35SiMnMoV steel Ni-base super alloy GH4049 contrast analysis threshold fatigue small cracks regulation of expanding |
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