Microstructure and mechanical properties of CrFeNiB<sub>x</sub> eutectic high entropy alloys

doi:10.1016/j.msea.2023.145741

IMR OpenIR

	Microstructure and mechanical properties of CrFeNiB_x eutectic high entropy alloys
	Lei, Haofeng 2; Ye, Xicong 1,2; Feng, Jiaxing 2; Chen, Junchao 2; Diao, Zhongheng 2; Fang, Dong 1,2; Li, Bo 1,2; Zhao, Guangwei 1,2; Liu, Renci 3
通讯作者	Ye, Xicong(yexc@ctgu.edu.cn) ; Fang, Dong(hill988@163.com) ; Liu, Renci(rcliu@imr.ac.cn)
	2023-11-06
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	887 页码:10
摘要	A series of low-cost CrFeNiBx (x = 0, 0.05, 0.1, 0.15, 0.2, 0.25, and 0.3) High Entropy Alloys (HEAs) without the Co element were proposed by vacuum arc melting. The study aimed to investigate the effect of boron (B) content on the microstructure evolution, phase formation regulation, and compression properties. The alloys were investigated by Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and Transmission Electron Microscopy (TEM). The results show that with the addition of B content, the microstructure of the CrFeNiBx alloys transforms from a single-phase face-centered cubic structure to a biphasic structure consisting of Face-Centered Cubic (FCC) + irregular lamellar boride. Furthermore, the mechanical properties of alloys exhibit an increase in strength and hardness, accompanied by a decrease in compressibility. Specifically, the CrFeNiB0.25 alloy exhibited a fully eutectic structure consisting of irregular lamellar FCC + boride phases. It possesses exceptional mechanical properties, such as a yield strength of 973 MPa, compression over 80% without fracturing, and a hardness of 370 HV. The predicted phase judgment range of the high-entropy alloy containing B is as follows: when delta >= 3.48% and Delta H-mix <= -6.03 kJ/mol, the boride phase appears in the solid solution phase, and when r(m)/r(q) < 0.711, the microstructures are composed of FCC + boride phases.
关键词	High entropy alloys Microstructure Eutectic structure Mechanical properties Boride phase
资助者	National Natural Science Foundation of China ; Major Technological Innovation Project of Hubei Science and Technology Department
DOI	10.1016/j.msea.2023.145741
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51604161] ; Major Technological Innovation Project of Hubei Science and Technology Department[2019AAA164]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001107247500001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：12[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/321006/177395
专题	中国科学院金属研究所
通讯作者	Ye, Xicong; Fang, Dong; Liu, Renci
作者单位	1.China Three Gorges Univ, Hubei Engn Res Ctr Graphite Addit Mfg Technol & Eq, Yichang 443002, Peoples R China 2.China Three Gorges Univ, Coll Mech & Power Engn, Yichang 443002, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Lei, Haofeng,Ye, Xicong,Feng, Jiaxing,et al. Microstructure and mechanical properties of CrFeNiB_x eutectic high entropy alloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2023,887:10.
APA	Lei, Haofeng.,Ye, Xicong.,Feng, Jiaxing.,Chen, Junchao.,Diao, Zhongheng.,...&Liu, Renci.(2023).Microstructure and mechanical properties of CrFeNiB_x eutectic high entropy alloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,887,10.
MLA	Lei, Haofeng,et al."Microstructure and mechanical properties of CrFeNiB_x eutectic high entropy alloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 887(2023):10.