In order to obtain fine-microstructure magnesium alloys with superior mechanical properties, AZ61 alloy was processed by friction stir processing(FSP) combined with rapid heat sink. It is found that ultra fine-grained microstructure with average size less than 300 nm is observed in the resultant AZ61 alloy. The mean microhardness of the ultra-fine region reaches Hv120-130, two times higher than that of AZ61 substrate. All these results demonstrate clearly that under a cooling rate high enough, ultra-fine structure in AZ61 alloy with superior mechanical properties can be produced by one pass FSP via dynamic recrystallization.
其他摘要
In order to obtain fine-microstructure magnesium alloys with superior mechanical properties, AZ61 alloy was processed by friction stir processing(FSP) combined with rapid heat sink. It is found that ultrafine-grained microstructure with average size less than 300 nm is observed in the resultant AZ61 alloy. The mean microhardness of the ultra-fine region reaches Hv120-130, two times higher than that of AZ61 substrate. All these results demonstrate clearly that under a cooling rate high enough, ultra-fine structure in AZ61 alloy with superior mechanical properties can be produced by one pass FSP via dynamic recrystallization.
Du Xinghao,Wu Baolin. Using friction stir processing to produce ultrafine-grained microstructure in AZ61 magnesium alloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2008,18(3):562-565.
APA
Du Xinghao,&Wu Baolin.(2008).Using friction stir processing to produce ultrafine-grained microstructure in AZ61 magnesium alloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,18(3),562-565.
MLA
Du Xinghao,et al."Using friction stir processing to produce ultrafine-grained microstructure in AZ61 magnesium alloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 18.3(2008):562-565.
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