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材料工程  2015, Vol. 43 Issue (2): 91-95    DOI: 10.11868/j.issn.1001-4381.2015.02.015
  测试与表征 本期目录 | 过刊浏览 | 高级检索 |
腐蚀环境对预腐蚀铝合金腐蚀疲劳性能的影响
马少华, 回丽, 周松, 许良, 朱永辉
沈阳航空航天大学 机电工程学院, 沈阳 110136
Influence of Corrosion Environments on Corrosion Fatigue Property of Pre-corroded Aluminum Alloy
MA Shao-hua, HUI Li, ZHOU Song, XU Liang, ZHU Yong-hui
School of Mechatronics Engineering, Shenyang Aerospace University, Shenyang 110136, China
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摘要 采用不同环境下的轴向加载疲劳性能测试方法,研究了不同环境对预腐蚀7XXX铝合金腐蚀疲劳性能的影响.结果表明:腐蚀环境对其疲劳寿命的影响从重到轻依次是:油箱积水、盐水、潮湿空气和实验室空气.当应力比R为0.5和0.06时,潮湿空气下的疲劳寿命比实验室空气下的略低,降低的幅度随着应力的降低而增大;在低应力水平区盐水和油箱积水环境对疲劳寿命的影响基本相同.当应力比R为-1时,盐水下的疲劳寿命总是略低于油箱积水环境下的疲劳寿命;潮湿空气相比实验室空气下的疲劳寿命随着应力的降低,降低的幅度比应力比为0.5和0.06时要略大.
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马少华
回丽
周松
许良
朱永辉
关键词 预腐蚀铝合金腐蚀环境腐蚀疲劳    
Abstract:The influence of different environments on corrosion fatigue property of pre-corroded 7XXX aluminum alloys was investigated via axial load fatigue test under different environments. The results show that water in fuel tank environment has the biggest effect on the specimens fatigue life among all the corrosion environments and followed by the saline environment, the wet air and the laboratory air. When stress ratio R is 0.5 and 0.06, the fatigue life of the specimens in the wet air are slightly lower than those in the laboratory air, the decreasing amplitude increases with the decrease of stress. Fatigue life of the specimens in the saline environment and water in fuel tank are almost the same at low stress level. When stress ratio R is -1, the fatigue life of the specimens in the saline environment are always slightly lower than those in the water of fuel tank, and the fatigue life in the wet air are lower than those in the laboratory air, with decreasing amplitude slightly larger than that at stress ratio R is 0.5 and 0.06.
Key wordspre-corrosion    aluminum alloy    corrosion environment    corrosion fatigue
收稿日期: 2013-03-19     
1:  O346  
  V216  
通讯作者: 回丽(1965—),女,博士,教授,主要从事钛合金激光快速成形及航空材料疲劳技术研究,联系地址:辽宁省沈阳市道义南大街37号沈阳航空航天大学航空制造工艺数字化国防重点学科实验室(110136), E-mail: syhuili@163.com     E-mail: syhuili@163.com
引用本文:   
马少华, 回丽, 周松, 许良, 朱永辉. 腐蚀环境对预腐蚀铝合金腐蚀疲劳性能的影响[J]. 材料工程, 2015, 43(2): 91-95.
MA Shao-hua, HUI Li, ZHOU Song, XU Liang, ZHU Yong-hui. Influence of Corrosion Environments on Corrosion Fatigue Property of Pre-corroded Aluminum Alloy. Journal of Materials Engineering, 2015, 43(2): 91-95.
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http://jme.biam.ac.cn/jme/CN/10.11868/j.issn.1001-4381.2015.02.015      或      http://jme.biam.ac.cn/jme/CN/Y2015/V43/I2/91
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