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

文献类型：期刊论文

作者Ji, Yu1,2; Zhang, Long2; Lu, Xing1; Pang, Jingyu2; Lu, Yunzhuo1; Zhu, Zhengwang2; Fu, Huameng2; Zhang, Hongwei2; Li, Hong2; Zhang, Haifeng2
刊名APPLIED PHYSICS LETTERS
出版日期2021-10-04
卷号119期号:14页码:7
ISSN号0003-6951
DOI10.1063/5.0060678
通讯作者Zhang, Long(zhanglong@imr.ac.cn) ; Lu, Xing(lu@djtu.edu.cn) ; Zhang, Hongwei(hongweizhang@imr.ac.cn)
英文摘要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 FexCrNiAl0.5Ti0.5 HEAs containing L2(1) nanocrystals. With increasing the Fe content from Fe2 to Fe4 and Fe6, the formation of a big blocky L2(1) 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 Liaoning-Shenyang 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
语种英语
WOS记录号WOS:000779209300002
出版者AIP Publishing
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science ; Liaoning Revitalization Talents Program ; Chinese Academy of Sciences ; IMR Innovation Fund ; Youth Innovation Promotion Association CAS
源URL[http://ir.imr.ac.cn/handle/321006/172545]  
专题金属研究所_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, Shichangxu Innovat Ctr Adv Mat, Inst Met Res, 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.

入库方式： OAI收割

来源：金属研究所

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