摘要
Rapidly solidified （RS） AZ31 magnesium alloy ribbons were made using melt spinning technique. The results show that its microhardness increases with the wheel speed, and after heat treatment, the microhardness of the ribbons produced at 1 600 r/min also increases. Rapid solidification leads to reduction of grain size. When the wheel speed reaches 1 600 r/min, no Mg17Al12 phase precipitates, while heat treatment at 200 ℃ leads to precipitation of Mg17Al12 phase. Al-Mn intermetallic compounds with size no larger than 10 nm appear in as-spun ribbons. The corrosion potential of the as-cast ingots is lower than that of the as-spun ribbons.
Rapidly solidified (RS) AZ31 magnesium alloy ribbons were made using melt spinning technique. The results show that its microhardness increases with the wheel speed, and after heat treatment, the microhardness of the ribbons produced at 1 600 r/min also increases. Rapid solidification leads to reduction of grain size. When the wheel speed reaches 1 600 r/min, no Mg_(17)Al_(12) phase precipitates, while heat treatment at 200 ℃ leads to precipitation of Mg_(17)Al_(12) phase. Al-Mn intermetallic compounds with size no larger than 10 nm appear in as-spun ribbons. The corrosion potential of the as-cast ingots is lower than that of the as-spun ribbons.
出处
《中国有色金属学会会刊：英文版》
CSCD
2005年第1期144-148,共5页
Transactions of Nonferrous Metals Society of China
基金
Project(0411051500) supported by the Natural Science Foundation of Henan Province
Project(204085) supported by theKey Project of Eduction Ministry of China
关键词
快速凝固
镁合金
微观结构
合金性质
rapid solidification
magnesium alloy
microstructure
properties
