| 环境效应和强化效果对300M超高强度钢疲劳性能的影响 |
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| 引用本文： | 丁传富.环境效应和强化效果对300M超高强度钢疲劳性能的影响[J].航空材料学报,1996,16(3):25-32. |
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| 作者姓名： | 丁传富 |
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| 作者单位： | 北京航空材料研究院 |
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| 摘 要： | 研究了３００Ｍ超高强度钢螺纹滚压和未滚压试样在空气和３．５％ＮａＣｌ的水溶液中的疲劳性能。揭示了环境效应与强化效果的关系。实验发现，在ｆ＝１０Ｈｚ下，滚压件在盐水环境中和未滚压件在空气环境中的应力－寿命曲线之间存在一相交点。应力高于该相交点，强化效果起主导作用；低于该相交点，环境效应起主导作用。
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| 关 键 词： | 腐蚀疲劳，超高强度钢，强化效果，环境效应 |
INFLUENCE OF STRENGTHENING EFFECTS AND ENVIRONMENT EFFECTS ON FATIGUE PROPERTIES OF 300M ULTRA-HIGH STRENGTH STEEL |
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| Ding Chuanfu.INFLUENCE OF STRENGTHENING EFFECTS AND ENVIRONMENT EFFECTS ON FATIGUE PROPERTIES OF 300M ULTRA-HIGH STRENGTH STEEL[J].Journal of Aeronautical Materials,1996,16(3):25-32. |
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| Authors: | Ding Chuanfu |
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| Abstract: | In this paper, the fatigue properties of rolled and non-rolled screw-thread specimens in 300M ultrahigh strength steel in air and 3.5% NaCl water solution were investigated. The relationship of environmental effects and strengthening effects is revealed.It has been found experimentally that an intersection is existed between two S-N curves in saltwater and air at f=10Hz Strengthening effects are acted mainly above the stress levels of the intersection. Environmental effects are acted mainly below the stress levels of the intersection. |
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| Keywords: | corrosion fatigue ultra-high strength steel strengthening effects environmentalEffects |
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