Novel accelerated corrosion test for LY12CZ and LC4CS aluminum alloys  

作　　者：蔡健平 刘明 

机构地区：[1]Beijing Institute of Aeronautic Materials,Beijing 100095,China

出　　处：《中国有色金属学会会刊：英文版》2006年第A03期1415-1418,共4页Transactions of Nonferrous Metals Society of China

基　　金：Project(G1999065004) supported by the National Key Basic Research Program of China

摘　　要：A new accelerated corrosion test—comprehensive environmental test (CET) was developed in order to estimate the outdoor corrosion of aluminum alloys in marine environment. The environmental characteristics in CET were studied by atmospheric corrosion monitor (ACM), and the morphology of corrosion product was observed by SEM. The correlation between the accelerated corrosion tests and outdoor exposure was discussed. The results show that the anti-corrosion ranking for LY12CZ, LC4CS, clad LY12CZ, and clad LC4CS in CET is the same as that of the alloys exposed outdoor, and ACM study shows that CET demonstrates the same environmental characteristics as that exposed outdoor. CET is a more accurate accelerated corrosion test, and a mathematical relation was obtained to describe the relation between CET and outdoor test.A new accelerated corrosion test--comprehensive environmental test （CET） was developed in order to estimate the outdoor corrosion of aluminum alloys in marine environment. The environmental characteristics in CET were studied by atmospheric corrosion monitor （ACM）, and the morphology of corrosion product was observed by SEM. The correlation between the accelerated corrosion tests and outdoor exposure was discussed. The results show that the anti-corrosion ranking for LY12CZ, LC4CS, clad LY12CZ, and clad LC4CS in CET is the same as that of the alloys exposed outdoor, and ACM study shows that CET demonstrates the .same environmental characteristics as that exposed outdoor. CET is a more accurate accelerated corrosion test, and a mathematical relation was obtained to describe the relation between CET and outdoor test.

关 键 词：金属腐蚀 铝合金 大气腐蚀 海洋环境 

分 类 号：TG174[金属学及工艺—金属表面处理]