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Optimizing the microstructure and mechanical performance of Fe-Ni-Cr- Al high entropy alloys via Ti addition

文献类型：期刊论文

作者Xing, Zhenqiang1; Pang, Jingyu2; Zhang, Hongwei2; Ji, Yu2; Zhu, Zhengwang2; Wang, Aimin2; Zhang, Long2; Li, Hong3; Fu, Huameng2; Zhang, Haifeng2
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2023-05-15
卷号943页码:9
ISSN号0925-8388
关键词High entropy alloys Microstructural evolution Hierarchical structure Lattice misfit Precipitation strengthening
DOI10.1016/j.jallcom.2023.169149
通讯作者Pang, Jingyu(jypang17s@imr.ac.cn) ; Zhang, Hongwei(hongweizhang@imr.ac.cn)
英文摘要The effect of Ti content on the microstructure and mechanical properties regulation for Fe45Ni30-xCr15Al10Tix high entropy alloys (HEAs) with a duplex FCC/BCC structure is investigated. The as-cast Fe45Ni30-xCr15Al10Tix HEAs have typical dendrite and inter-dendrite structure, where dendric and inter-dendric regions are FCC and BCC phases, respectively. After introducing Ti, the inter-dendric structure transforms into coexistence of disordered BCC and ordered B2/L21 phases. And the morphology of B2/L21 precipitates gradually changes from a regular maze-like mesh and cuboidal structure to elliptical structures due to the increase of the lattice mismatch. The change of precipitate type and volume fraction lead to that the ultimate tensile strength of the HEAs increases from 540 MPa to 1292 MPa. Meanwhile, it keeps the uniform elongation of 13.29%, showing outstanding strength-plasticity synergy. (c) 2023 Elsevier B.V. All rights reserved.
资助项目Liaoning Key Research and Development Program[2022JH2/101300080] ; Chinese Academy of Sciences[ZDBS-LY-JSC023]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000931850000001
资助机构Liaoning Key Research and Development Program ; Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/175157]  
专题金属研究所_中国科学院金属研究所
通讯作者Pang, Jingyu; 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
3.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
推荐引用方式
GB/T 7714		 Xing, Zhenqiang,Pang, Jingyu,Zhang, Hongwei,et al. Optimizing the microstructure and mechanical performance of Fe-Ni-Cr- Al high entropy alloys via Ti addition[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,943:9.
APA Xing, Zhenqiang.,Pang, Jingyu.,Zhang, Hongwei.,Ji, Yu.,Zhu, Zhengwang.,...&Zhang, Haifeng.(2023).Optimizing the microstructure and mechanical performance of Fe-Ni-Cr- Al high entropy alloys via Ti addition.JOURNAL OF ALLOYS AND COMPOUNDS,943,9.
MLA Xing, Zhenqiang,et al."Optimizing the microstructure and mechanical performance of Fe-Ni-Cr- Al high entropy alloys via Ti addition".JOURNAL OF ALLOYS AND COMPOUNDS 943(2023):9.

入库方式： OAI收割

来源：金属研究所

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