Microstructural optimization of FexCrNiAl0.5Ti0.5 high entropy alloys toward high ductility

doi:10.1063/5.0060678

IMR OpenIR

	Microstructural optimization of FexCrNiAl0.5Ti0.5 high entropy alloys toward high ductility
	Ji, Yu 1,2; Zhang, Long 2; Lu, Xing 1; Pang, Jingyu 2; Lu, Yunzhuo 1; Zhu, Zhengwang 2; Fu, Huameng 2; Zhang, Hongwei 2; Li, Hong 2; Zhang, Haifeng 2
通讯作者	Zhang, Long(zhanglong@imr.ac.cn) ; Lu, Xing(lu@djtu.edu.cn) ; Zhang, Hongwei(hongweizhang@imr.ac.cn)
	2021-10-04
发表期刊	APPLIED PHYSICS LETTERS
ISSN	0003-6951
卷号	119 期号:14 页码:7
摘要	It remains challenging to develop low-cost body-centered cubic (BCC) high-entropy alloys (HEAs) with superior mechanical properties. In this work, we investigated the microstructure and mechanical properties of BCC FexCrNiAl(0.5)Ti(0.5) HEAs containing L2(1) nanocrystals. With increasing the Fe content from Fe2 to Fe4 and Fe6, the formation of a big blocky L21 phase and a sigma phase can be fully suppressed, and the size and fraction of the L2(1) crystals also decrease. Fe4 and Fe6 HEAs exhibit an optimized dual-phase microstructure with high-density L2(1) nanocrystals homogeneously distributed in the BCC matrix. Fe4 and Fe6 HEAs show high strength and do not fracture even at a large compressive strain of 70%, exhibiting the best combination of strength and fracture strain among all the reported BCC HEAs with nanocrystals. The superior mechanical properties of Fe4 and Fe6 HEAs are attributed to the optimized microstructure. These findings promote the development of low-cost HEAs with superior mechanical properties. Published under an exclusive license by AIP Publishing.
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Joint Research Fund LiaoningShenyang National Laboratory for Materials Science ; Liaoning Revitalization Talents Program ; Chinese Academy of Sciences ; IMR Innovation Fund ; Youth Innovation Promotion Association CAS
DOI	10.1063/5.0060678
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2018YFB0703402] ; National Natural Science Foundation of China[52171164] ; National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[52074257] ; Joint Research Fund LiaoningShenyang National Laboratory for Materials Science[2019010248-JH3/301] ; Liaoning Revitalization Talents Program[XLYC1802078] ; Liaoning Revitalization Talents Program[XLYC1807062] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; IMR Innovation Fund[2021-PY03] ; Youth Innovation Promotion Association CAS[2021188]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000754604800006
出版者	AIP Publishing
引用统计	被引频次：5[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/321006/172543
专题	中国科学院金属研究所
通讯作者	Zhang, Long; Lu, Xing; Zhang, Hongwei
作者单位	1.Dalian Jiaotong Univ, Sch Mat Sci & Engn, Dalian 116028, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shichangxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ji, Yu,Zhang, Long,Lu, Xing,et al. Microstructural optimization of FexCrNiAl0.5Ti0.5 high entropy alloys toward high ductility[J]. APPLIED PHYSICS LETTERS,2021,119(14):7.
APA	Ji, Yu.,Zhang, Long.,Lu, Xing.,Pang, Jingyu.,Lu, Yunzhuo.,...&Zhang, Haifeng.(2021).Microstructural optimization of FexCrNiAl0.5Ti0.5 high entropy alloys toward high ductility.APPLIED PHYSICS LETTERS,119(14),7.
MLA	Ji, Yu,et al."Microstructural optimization of FexCrNiAl0.5Ti0.5 high entropy alloys toward high ductility".APPLIED PHYSICS LETTERS 119.14(2021):7.