| 铝合金材料腐蚀形貌及裂纹扩展分析 |
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| 引用本文： | 叶彬,朱做涛,穆志韬.铝合金材料腐蚀形貌及裂纹扩展分析[J].装备环境工程,2011,8(4):54-58. |
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| 作者姓名： | 叶彬 朱做涛 穆志韬 |
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| 作者单位： | 1. 洪都集团650所,南昌,330000
2. 海军航空工程学院青岛分院,山东青岛,266041 |
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| 摘 要： | 通过加速腐蚀试验,利用QUESTAR三维光学显微镜观察,将蚀坑看作是椭球形,其深度及宽度都符合幂函数的形式,都随腐蚀时间的增加而增加,但增加的速率都降低；腐蚀能显著降低试件的疲劳寿命,是疲劳裂纹形成的主要原因；AFGROW软件较好地拟合了腐蚀试件的裂纹扩展寿命,拟合误差较低,且所得的裂纹扩展寿命及临界裂纹长度比实际试验...
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| 关 键 词： | 腐蚀坑 腐蚀形貌 疲劳寿命 疲劳裂纹 裂纹扩展 |
| 收稿时间： | 3/1/2011 12:00:00 AM |
| 修稿时间： | 2011/8/15 0:00:00 |
Corrosion Morphology and Crack Growth Analysis of Aluminum Alloy Material |
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| Corrosion Morphology and Crack Growth Analysis of Aluminum Alloy Material,ZHU Zuo-tao and MU Zhi-tao.Corrosion Morphology and Crack Growth Analysis of Aluminum Alloy Material[J].Equipment Environmental Engineering,2011,8(4):54-58. |
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| Authors: | Corrosion Morphology and Crack Growth Analysis of Aluminum Alloy Material ZHU Zuo-tao and MU Zhi-tao |
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| Institution: | YE Bin1,ZHU Zuo-tao2,MU Zhi-tao2(1.650 Research Institute of Hongdu Group,Nanchang 330000,China,2.Qingdao Branch of Naval Aeronautical Engineering Academy,Qingdao 266041,China) |
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| Abstract: | Aluminum alloy was tested with accelerated corrosion method.The corrosion pits were seen as ellipse balls and examined with QUESTAR three-dimensional optics microscope.The results showed that the depth and width of corrosion pits increasing with corrosion time and in according with power function,but the acceleration decrease;Corrosion can reduce the fatigue life of the materials significantly and is the main cause of fatigue crack formation and growth;AFGROW software can simulate crack growth life well and... |
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| Keywords: | corrosion pits corrosion morphology fatigue life fatigue crack crack growth |
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