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

文献类型：期刊论文

作者Xiang, Shuo1,3; Luan, Hengwei4; Wu, Jian3; Yao, Ke-Fu4; Li, Jinfeng3; Liu, Xue3; Tian, Yanzhong2; Mao, Wenlue4; Bai, Hua4; Le, Guomin3
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2019-01-30
卷号773页码:387-392
关键词Laser metal deposition Casting Microstructures Tensile test High entropy alloy
ISSN号0925-8388
DOI10.1016/j.jallcom.2018.09.235
通讯作者Li, Jinfeng(lijinfeng305@126.com) ; Le, Guomin(leguomin@126.com) ; Li, Qiang(qli@xju.edu.cn)
英文摘要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.
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
语种英语
WOS记录号WOS:000449741200044
出版者ELSEVIER SCIENCE SA
资助机构National Natural Science Foundation of China ; Science and Technology Plan Project of Sichuan ; Special Fund Project of Panzhihua
源URL[http://ir.imr.ac.cn/handle/321006/130199]  
专题金属研究所_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.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
3.China Acad Engn Phys, Inst Mat, Mianyang 621907, Peoples R China
4.Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, 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.

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来源：金属研究所

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