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Using friction stir processing to produce ultrafine-grained microstructure in AZ61 magnesium alloy
Alternative TitleUsing friction stir processing to produce ultrafine-grained microstructure in AZ61 magnesium alloy
Du Xinghao; Wu Baolin
2008
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume18Issue:3Pages:562-565
AbstractIn 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.
Other AbstractIn 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.
KeywordMECHANICAL-PROPERTIES SUPERPLASTICITY TEMPERATURE REFINEMENT SIZE magnesium based alloys AZ61 alloy friction stir processing ultrafine-grained microstructure
Indexed ByCSCD
Language英语
CSCD IDCSCD:3252482
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/149543
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
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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