| 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].贵州科技工程职业学院学报,2007,2(4):29-30,35. |
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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,贵州贵阳550003 |
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| 基金项目： | 国家自然科学基金（04020092）. |
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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和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 疲劳裂纹的扩展规律 |
| 文章编号： | 0000-SK149（2007）04-29-03 |
| 收稿时间： | 2007-10-14 |
Study on the Threshold of Small Fatigue Cracks |
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| He Zishu, Liang Yilong, Lin Min.Study on the Threshold of Small Fatigue Cracks[J].GUIZHOU SCIENCE AND TECHNOLOGY PROFESSIONAL COLLEGE,2007,2(4):29-30,35. |
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| Authors: | He Zishu Liang Yilong Lin Min |
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| Abstract: | This text studies the fatigue test of 35SiMnMoV steel at normal temperature and the test Ni-base super alloy GH4049 at high temperature . During the studies, We aquire a number of trial data and the development regularity of small fatigue cracks. By contrasting with the threshold of fatigue cracks, we conclude a series of regularity of the expanding of fatigue small cracks. |
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| Keywords: | 35SiMnMoV steel Ni-base super alloy GH4049 contrast analyze threshold regulation of expandingof fatigue small cracks |
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