Microstructural features and excellent compression properties of a novel Al0.7CoCrFeNiTi0.3 high entropy alloy

doi:10.1016/j.matlet.2020.129246

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructural features and excellent compression properties of a novel Al0.7CoCrFeNiTi0.3 high entropy alloy
	Zhong, Xianzhe 1; Zhang, Qingming 1; Jiang, Fuqing 2; Yan, Yongming 1; Wang, Zhiwei 1; Wu, Mingze 1
刊名	MATERIALS LETTERS
	2021-03-01
卷号	286 页码:4
关键词	High entropy alloy Microstructure Mechanical properties Deformation and fracture
ISSN号	0167-577X
DOI	10.1016/j.matlet.2020.129246
通讯作者	Zhang, Qingming(qmzhang@bit.edu.cn)
英文摘要	A novel as-cast Al0.7CoCrFeNiTi0.3 high entropy alloy was prepared by vacuum arc melting and its microstructure and compression properties were investigated. The alloy has an excellent combination of high strength and large plasticity. The yield strength, fracture strength and compressive plasticity of the alloy at room temperature were as high as 1438 MPa, 2990 MPa, and 37.7%, respectively. The alloy was composed of alternating nano-scale face center cubic (FCC), body center cubic (BCC) and ordered L2(1) phase. The excellent mechanical properties of the alloy are attributed to the combination of the soft FCC phase and the hard BCC/L2(1) phase. In addition, the large number of phase interfaces provided by the nano-scale lamellar microstructure and precipitated ordered phase also produce a strengthening effect. The fracture mechanism of the alloy is mainly performed at compound fracture mode. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Key R&D Program of China[2016YFC0801200]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000615986400002
资助机构	National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160538]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Qingming
作者单位	1.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China 2.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	Zhong, Xianzhe,Zhang, Qingming,Jiang, Fuqing,et al. Microstructural features and excellent compression properties of a novel Al0.7CoCrFeNiTi0.3 high entropy alloy[J]. MATERIALS LETTERS,2021,286:4.
APA	Zhong, Xianzhe,Zhang, Qingming,Jiang, Fuqing,Yan, Yongming,Wang, Zhiwei,&Wu, Mingze.(2021).Microstructural features and excellent compression properties of a novel Al0.7CoCrFeNiTi0.3 high entropy alloy.MATERIALS LETTERS,286,4.
MLA	Zhong, Xianzhe,et al."Microstructural features and excellent compression properties of a novel Al0.7CoCrFeNiTi0.3 high entropy alloy".MATERIALS LETTERS 286(2021):4.