摘要
This review provided some recent progress of the research on corrosion mechanisms of magnesium and its alloys and a basis for follow-on research. Galvanic corrosion, pitting corrosion, intergranular corrosion (IGC), filiform corrosion, crevice corrosion, stress corrosion cracking (SCC), and corrosion fatigue (CF) were discussed. The influence of metallurgical factors such as alloying elements, microstructure and secondary phases, processing factors such as heat treatment and weld, and environmental factors including temperature, relative humidity, solution pH values and concentration on corrosion were discussed. In particular, a mechanism of pitting corrosion caused by AlMn particles was proposed. The corrosion properties of AZ91D weld material were investigated.
This review provided some recent progress of the research on corrosion mechanisms of magnesium and its alloys and a basis for follow-on research. Galvanic corrosion, pitting corrosion, intergranular corrosion （IGC）, filiform corrosion, crevice corrosion, stress corrosion cracking （SCC）, and corrosion fatigue （CF） were discussed. The influence of metallurgical factors such as alloying elements, microstructure and secondary phases, processing factors such as heat treatment and weld, and environmental factors including temperature, relative humidity, solution pH values and concentration on corrosion were discussed. In particular, a mechanism of pitting corrosion caused by AlMn particles was proposed. The corrosion properties of AZ91D weld material were investigated.
出处
《中国有色金属学会会刊：英文版》
CSCD
2006年第B02期763-771,共9页
Transactions of Nonferrous Metals Society of China
基金
Project (CSTL, 2004BA4002 and 8655) supported by the Key Natural Science Foundation of Chongqing Municipal Science and Technology Committee, China Project (KJ050604) supported by the Science and Technology Program of Chongqing Municipal Education Committee, China
关键词
镁合金
腐蚀
疲劳
相对湿度
研究综述
magnesium alloy
intermetallic phase
corrosion
fatigue
weld
relative humidity
