Evolution of microstructure and properties of CoCrFeMnNi high entropy alloy fabricated by selective laser melting

被引：0
|
作者：
Wang, Zhenhui [2 ]
Ji, Pengcheng [2 ]
Wang, Gang [2 ,3 ]
Jia, Yandong [1 ]
Wang, Hui [4 ]
An, Xuguang [4 ]
机构：
[1] Shanghai Univ, Inst Mat, Sch Mat Sci & Engn, 99 Shangda Rd, Shanghai 200444, Peoples R China
[2] Shanghai Univ, Inst Mat, Shanghai 200444, Peoples R China
[3] Shanghai Univ, Zhejiang Inst Adv Mat, Jiashan 314113, Peoples R China
[4] Chengdu Univ, Inst Adv Study, Interdisciplinary Mat Res Ctr, Chengdu 610000, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2023年 / 114卷 / 10-11期
基金：
中国国家自然科学基金;
关键词：
CoCrFeMnNi; High entropy alloy; Mechanical properties; Microstructure; Selective laser melting; MECHANICAL-PROPERTIES; STAINLESS-STEEL; POWDER; PROCESSABILITY; BEHAVIOR; PARAMETERS;
D O I：
10.1515/ijmr-2022-0139
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
CoCrFeMnNi high entropy alloy was prepared by selective laser melting as a function of processing parameters by adopting the single factor variable method. The influence of process parameters on the microstructure and mechanical properties was investigated in detail. The results show that the alloy maintained a single-phase fcc structure, the microstructure is anisotropic and shows the presence of a high density of dislocations accumulated and entangled inside the grains. The ductility has a significant influence on the level of porosity, which in turn depends on the process parameters. Especially with the variation of hatch spacing, the elongation at break differs by at most 20.9 %.
引用
收藏
页码：901 / 910
页数：10
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