Effect of aging temperature on microstructure and mechanical properties of Fe-Ni-Cr-Al high entropy alloy

doi:10.1016/j.intermet.2023.108159

IMR OpenIR

	Effect of aging temperature on microstructure and mechanical properties of Fe-Ni-Cr-Al high entropy alloy
	Xing, Zhenqiang 1; Pang, Jingyu 2; Zhang, Hongwei 2; Ji, Yu 2; Zhu, Zhengwang 3; Zhang, Long 2; Li, Hong 3; Wang, Aimin 2; Zhang, Haifeng 3
通讯作者	Pang, Jingyu(jypang17s@imr.ac.cn) ; Zhang, Hongwei(hongweizhang@imr.ac.cn)
	2024-02-01
发表期刊	INTERMETALLICS
ISSN	0966-9795
卷号	165 页码:9
摘要	Investigating the strength-plasticity synergy of metal structural materials is a crucial scientific challenge. This study focuses on preparing high-entropy alloys (HEAs) comprising Fe-Ni-Cr-Al, which exhibit a heterostructural coexistence of several phases through cold rolling and aging (CRA). Above 600 degrees C CRA, the average grain size of the HEA was refined from 260 to 1.64 mu m, and numerous annealing twins were formed. Concurrently, two forms of irregularly ordered body-centred cubic (B2) phases and nanoscale ordered face-centred cubic (L12) phases were precipitated. Large B2 particles precipitated along the grain boundary, whereas small B2 and L12 particles precipitated within the grains. The average sizes of the B2 and L12 particles were 510 and 2.21 nm, respectively. The fine grain and precipitation strengthening enhanced the HEA yield strength (from 254 to 710 MPa). The difference in plastic strain between the matrix and precipitate causes long-range back-stress strengthening and heterodeformation-induced hardening, enhancing the strain-hardening ability and maintaining the superior plasticity of the HEA. This study provides an effective approach for obtaining metal structural materials with strength-plasticity synergy.
关键词	High entropy alloy Mechanical properties B2 phase L1 2 phase Deformation mechanism
资助者	Liaoning Key Research and Development Program ; Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; IMR Innovation Fund ; Natural Science Foundation of Liaoning Province
DOI	10.1016/j.intermet.2023.108159
收录类别	SCI
语种	英语
资助项目	Liaoning Key Research and Development Program[2022JH2/101300080] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; Youth Innovation Promotion Association CAS[2021188] ; IMR Innovation Fund[2023-PY16] ; Natural Science Foundation of Liaoning Province[2023 -BS -012]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001138964300001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：3[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/321006/183388
专题	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, Shi Changxu 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. Effect of aging temperature on microstructure and mechanical properties of Fe-Ni-Cr-Al high entropy alloy[J]. INTERMETALLICS,2024,165:9.
APA	Xing, Zhenqiang.,Pang, Jingyu.,Zhang, Hongwei.,Ji, Yu.,Zhu, Zhengwang.,...&Zhang, Haifeng.(2024).Effect of aging temperature on microstructure and mechanical properties of Fe-Ni-Cr-Al high entropy alloy.INTERMETALLICS,165,9.
MLA	Xing, Zhenqiang,et al."Effect of aging temperature on microstructure and mechanical properties of Fe-Ni-Cr-Al high entropy alloy".INTERMETALLICS 165(2024):9.