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The mechanical anisotropy of directionally solidified Mg-4 wt.% Zn alloy under compression test
Jia, Hongmin; Feng, Xiaohui; Yang, Yuansheng
2019-08-05
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume762
AbstractThe mechanical anisotropy of directionally solidified Mg-4 wt.% Zn alloy was studied under compression test at room temperature. The results show that directionally solidified Mg-4 wt.% Zn has higher compression strength and work hardening rates when compression axis is parallel to the growth direction, which is mainly due to the formation of {10 (1) over bar2} extension twins. Besides, the microstructural evolution in the process of plastic deformation was also investigated. When the compression axis is parallel to the growth direction, plastic deformation of the alloy starts with multi-slip systems and {10 (1) over bar2} twins are activated as the strain increases. The interactions among the twins, matrix and dislocations result in the occurrence of sub-grains and the fragmentation of columnar grains.
KeywordDirectional solidification Mg alloy Mechanical anisotropy Deformation twins Work hardening rate Microstructural evolution
Indexed BySCI
Language英语
WOS IDWOS:000479025800033
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80847
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Jia, Hongmin,Feng, Xiaohui,Yang, Yuansheng. The mechanical anisotropy of directionally solidified Mg-4 wt.% Zn alloy under compression test[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,762.
APA Jia, Hongmin,Feng, Xiaohui,&Yang, Yuansheng.(2019).The mechanical anisotropy of directionally solidified Mg-4 wt.% Zn alloy under compression test.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,762.
MLA Jia, Hongmin,et al."The mechanical anisotropy of directionally solidified Mg-4 wt.% Zn alloy under compression test".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 762(2019).
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