Characterization of microstructure and nanoscale phase in Mg-15Gd-1Zn (wt.%) alloy fabricated by rotating magnetic field casting

doi:10.1016/j.matchar.2020.110660

CORC > 金属研究所 > 中国科学院金属研究所

	Characterization of microstructure and nanoscale phase in Mg-15Gd-1Zn (wt.%) alloy fabricated by rotating magnetic field casting
	Chang, Zhiyu 1,2; Wu, Yujuan 1,2; Heng, Xiangwen 1,2; Su, Ning 1,2; Zhang, Yu 3; Yu, Baoyi 4; Zheng, Li 4; Shao, Xiaohong 5; Peng, Liming 1,2
刊名	MATERIALS CHARACTERIZATION
	2020-12-01
卷号	170 页码:9
关键词	Mg-Gd-Zn alloy Rotating magnetic field (RMF) Microstructure Long-period stacking order (LPSO) structures Dislocation gamma' precipitate
ISSN号	1044-5803
DOI	10.1016/j.matchar.2020.110660
通讯作者	Wu, Yujuan(wuyj@sjtu.edu.cn)
英文摘要	An Mg-15Gd-1Zn (GZ151, wt.%) alloy was fabricated by rotating magnetic field (RMF) casting, and the microstructures were compared with those produced by conventional gravity casting (CGC). The results show that the RMF can cause significant dendritic fragmentation and resultant grain refinement of the as-cast alloy. Compared with the CGC, the RMF makes the distribution of secondary eutectic phase-(Mg, Zn)3Gd more uniform, but does not affect the phase types. Furthermore, the RMF contributes to the formations of kinks of long-period stacking ordered (LPSO) structures and c + a dislocations, which originate from the stress and strain caused by Lorenz force. Under the solution-treated condition, the RMF casting alloy presents higher content and larger size of X phases than those of CGC alloy. Interestingly, for the first time, some curved chain-like structures consisting of short rod-like nanoscale phases were found in the grains. The short rod-like nanoscale phase is composed of many gamma' precipitates confined in an elliptical domain.
资助项目	National Key Research and Development Program of China[2016YFB0701201] ; National Natural Science Foundation of China[51971130] ; National Natural Science Foundation of China[51771113] ; National Natural Science Foundation of China[51821001]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000598514700004
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/158859]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wu, Yujuan
作者单位	1.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Natl Engn Res Ctr Light Alloy Net Forming, Shanghai 200240, Peoples R China 2.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China 3.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China 4.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chang, Zhiyu,Wu, Yujuan,Heng, Xiangwen,et al. Characterization of microstructure and nanoscale phase in Mg-15Gd-1Zn (wt.%) alloy fabricated by rotating magnetic field casting[J]. MATERIALS CHARACTERIZATION,2020,170:9.
APA	Chang, Zhiyu.,Wu, Yujuan.,Heng, Xiangwen.,Su, Ning.,Zhang, Yu.,...&Peng, Liming.(2020).Characterization of microstructure and nanoscale phase in Mg-15Gd-1Zn (wt.%) alloy fabricated by rotating magnetic field casting.MATERIALS CHARACTERIZATION,170,9.
MLA	Chang, Zhiyu,et al."Characterization of microstructure and nanoscale phase in Mg-15Gd-1Zn (wt.%) alloy fabricated by rotating magnetic field casting".MATERIALS CHARACTERIZATION 170(2020):9.