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《Journal of Beijing University of Aeronautics and Astronautics》 2001-02
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Research of Gray Model Applied in the Prior Corrosion and Fatigue of Aluminum Alloys

LIU Yan li ZHONG Qun peng (Beijing University of Aeronautics and Astronautics, Dept. of Materials Science and Engineering) WANG Yu kui (Shanxi Aircraft Manufacture Corporation)  
The effect of corrosion temperature and time on properties of the prior corroded aluminum alloys was discussed tentatively, and gray model was introduced in the research of the simulating accelerated corrosion test for aluminum alloys. The non linear relationship between mass loss,maximum corrosion depth,detail fatigue rating(DFR) and corrosion time was established based on power function,constant interval gray model as well as variable interval gray model. The results indicate that gray model can be employed to predict the underlying corrosion trend and fatigue properties precisely,compared with power model.Whether constant interval or variable interval data,gray model can describe successfully,and the accuracy of the gray model can also be improved by setting up modified residuals model.
【Fund】: 国家重点基础研究专项经费资助项目! (G19990 6 5 0 )
【CateGory Index】: V252.2
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【Secondary References】
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1 JIA Zhijun,ZHAO Quanlin,DONG Chaofang,LI Xiaogang (Centre of Corrsion and Protection,University of Science and Technology Beijing,Beijing 100083);EVALUATION OF WEATHERING CONDITIONS OF 13 CITIES IN CHINA BY PRINCIPAL COMPONENT ANALYSIS[J];Journal of Chinese Society for Corrosion and Protection;2009-05
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