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《The Chinese Journal of Nonferrous Metals》 2005-12
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Atmospheric corrosion behavior of AM60 magnesium alloy coupled with Cu alloy and Al alloy

DONG Chao-fang~1,XIAO Kui~1,LI Jiu-qing~1,LI Xiao-gang~(1,2),WEI Dan~3(1.College of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;2.State Key Laboratory for Corrosion and Protection,Institute of Metal Research,Chinese Academy of Science,Shenyang 110016,China;3.Chinese Society of Corrosion and Protection,Beijing 100083,China)  
The galvanic corrosion behavior laws of AM60 magnesium alloy coupled with H62 brass and LY12 aluminium alloy in Beijing atmospheric environment by exposure for three and six months were investigated respectively.The results show that the magnesium alloys act as anode and their corrosion rates increase by one to seven times when they are coupled with H62 brass and LY12 aluminium alloy.The atmospheric galvanic effect of magnesium alloys coupled with H62 brass is larger than that of the magnesium alloy AM60/ LY12 aluminium alloy.The atmospheric galvanic effect becomes stronger in Beijing with increasing exposure time for the same galvanic couple.For the dry and cold weather of the first test term(Dec,2003Feb,2004),the galvanic corrosion is less than that of the second test term which is of wetness and warmth(March,2004May,2004).The galvanic corrosion of AM60 magnesium alloy is accelerated for the high dust precipitation in Beijing.
【Fund】: 国家自然科学基金资助项目(5012211850499331-8)
【CateGory Index】: TG172.3
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