Microstructures and mechanical properties of CrMnFeCoNi high entropy alloys fabricated using laser metal deposition technique

doi:10.1016/j.jallcom.2018.09.235

IMR OpenIR

	Microstructures and mechanical properties of CrMnFeCoNi high entropy alloys fabricated using laser metal deposition technique
	Xiang, Shuo 1,2; Luan, Hengwei 3; Wu, Jian 2; Yao, Ke-Fu 3; Li, Jinfeng 2; Liu, Xue 2; Tian, Yanzhong 4; Mao, Wenlue 3; Bai, Hua 3; Le, Guomin 2; Li, Qiang 1
通讯作者	Li, Jinfeng(lijinfeng305@126.com) ; Le, Guomin(leguomin@126.com) ; Li, Qiang(qli@xju.edu.cn)
	2019-01-30
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	773 页码:387-392
摘要	In this paper, a laser metal deposition (LMD) process has been applied to the fabrications of CrMnFeCoNi high entropy alloys. The microstructures and mechanical properties of the CrMnFeCoNi alloys prepared using casting technique and LMD technique have been investigated. It has been found that the CrMnFeCoNi samples prepared using casting show a coarse dendritic structure. The microstructures of LMD samples contain both columnar grains and/or equiaxed grains, and the proportion of columnar grains and equiaxed grains can be adjusted by changing the laser power. Besides, the mechanical properties of LMD samples can be adjusted by changing laser power, due to columnar to equiaxed transitions (CET) that are effected by solidification mode and the heat flux direction of LMD process. It is worth to mention that the mechanical properties of the 1400 W samples produced using LMD are better than those produced by casting, which is rarely observed. Furthermore, CrMnFeCoNi alloys prepared using LMD show excellent mechanical properties at cryogenic temperatures. (C) 2018 Elsevier B.V. All rights reserved.
关键词	Laser metal deposition Casting Microstructures Tensile test High entropy alloy
资助者	National Natural Science Foundation of China ; Science and Technology Plan Project of Sichuan ; Special Fund Project of Panzhihua
DOI	10.1016/j.jallcom.2018.09.235
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51601176] ; National Natural Science Foundation of China[51401189] ; Science and Technology Plan Project of Sichuan[2018G20146] ; Special Fund Project of Panzhihua[2017CY-G-21]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000449741200044
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：157[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/130202
专题	中国科学院金属研究所
通讯作者	Li, Jinfeng; Le, Guomin; Li, Qiang
作者单位	1.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Xinjiang, Peoples R China 2.China Acad Engn Phys, Inst Mat, Mianyang 621907, Peoples R China 3.Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Xiang, Shuo,Luan, Hengwei,Wu, Jian,et al. Microstructures and mechanical properties of CrMnFeCoNi high entropy alloys fabricated using laser metal deposition technique[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,773:387-392.
APA	Xiang, Shuo.,Luan, Hengwei.,Wu, Jian.,Yao, Ke-Fu.,Li, Jinfeng.,...&Li, Qiang.(2019).Microstructures and mechanical properties of CrMnFeCoNi high entropy alloys fabricated using laser metal deposition technique.JOURNAL OF ALLOYS AND COMPOUNDS,773,387-392.
MLA	Xiang, Shuo,et al."Microstructures and mechanical properties of CrMnFeCoNi high entropy alloys fabricated using laser metal deposition technique".JOURNAL OF ALLOYS AND COMPOUNDS 773(2019):387-392.