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�������պ����ѧѧ�� 2008, Vol. 34 Issue (10) :1217-1221    DOI:
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1. �������պ����ѧ ����ϵͳ����ϵ, ���� 100191;
2. �������պ����ѧ ���Ͽ�ѧ�빤��ѧԺ, ���� 100191
Corrosion failure of aluminum alloy parts on airplane used in marine environment
Huang Lingcai1, Gu An2, Liu Huicong2, Jiang Tongmin1*
1. Dept. of System Engineering of Engineering Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� Corrosion of aluminum alloy parts on airplane used in marine environment for tour was discussed. Along with the research of microcosmic image and corrosion product component of aluminum alloy parts on airplane, and considering the environmental condition used for the airplane, corrosion style, corrosion process and corrosion mechanism of aluminum alloy parts were researched. Results show that corrosion cause for aluminum alloy parts is residual seawater including chlorine ion from marine environment in the annular and plane clearance between constructional rivet and airplane parts, and insufficient protection for surface of airplane parts. Pit immersed firstly on the surface of aluminum alloy parts, and subsequently, intergranular corrosion and exfoliation occurred, stress due to the corrosion production accelerated delamination and flake away. Some suggestions were given to improve the anti-corrosion ability for aluminum alloy parts used on airplane, which include eliminating and filling in the constructional clearance.
Keywords�� service aircraft   aluminum alloy components   corrosion fatigue   mechanisms     
Received 2007-10-23;
About author: �����(1966-),��,������������,��ʿ��,liuhc@buaa.edu.cn.
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Huang Lingcai, Gu An, Liu Huicong,Jiang Tongmin.Corrosion failure of aluminum alloy parts on airplane used in marine environment[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(10): 1217-1221
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