Microstructure investigations of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy under Fe ions irradiation

doi:10.1016/j.jnucmat.2021.153006

	Microstructure investigations of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy under Fe ions irradiation
	Wang, Ji 6; Chai, Jianlong 1; Zhang, Hongpeng 1; Tai, Pengfei 1; Liu, Chao 1; Niu, Lijuan 1; He, Wenhao 2; Huang, Weiying 3; Shu, Rui 4; Luo, Laihui 6
刊名	JOURNAL OF NUCLEAR MATERIALS
	2021-08-15
卷号	552 页码:7
关键词	High-entropy alloy Irradiation TEM Twinning-induced plasticity Transformation-induced plasticity
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2021.153006
通讯作者	Zhu, Yabin(zhuyabin@impcas.ac.cn) ; Yao, Cunfeng(ycf@impcas.ac.cn) ; Gao, Peifeng(gaopf@lzu.edu.cn)
英文摘要	An Fe50Mn30Co10Cr10 dual-phase high-entropy alloy (DP-HEA) was irradiated at room temperature with 3 MeV Fe ions to a dose of 50 displacement per atom (dpa). Potentials of special elemental designed DP-HEAs with low stacking fault energy (SFE) as promising candidate materials for future nuclear energy systems are evaluated. Transmission electron microscopy (TEM) analysis finds that FCC gamma-gamma, HCP epsilon-epsilon twinning structures and FCC gamma-HCP epsilon co-existed structures of the DP-HEA, which correlate with the combined high strength and high ductility featured by this alloy, remain stable under a displacement damage of 50 dpa. No elemental segregation after irradiation was detected by energy dispersive spectroscopy. The results indicate that TWIP and TRIP mechanisms, owned by many other DP-HEAs, may still work effectively, and the materials still possess the merits of combined high strength and ductility brought by TWIP and TRIP mechanisms under irradiation conditions. Defects free channels (DFCs) and abundant Lomer-Cottrell (L-C) locks are observed in the irradiated samples after tensile deformation. The immobile L-C locks restrict DFCs growth, prevent the pile-up of dislocation along grain boundaries, thus sustaining dislocations in the grain interior. This study provides a new strategy to improve simultaneously the irradiation resistance and mechanical properties of structural materials by introducing the TWIP and TRIP mechanisms. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11902129] ; National Natural Science Foundation of China[11505247] ; National Natural Science Foundation of China[U1832206] ; National Natural Science Foundation of China[U2032142] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21010202] ; Natural Science Fund of Zhejiang Province[LQ20A050001] ; Natural Science Fund of Ningbo City[2019A610183] ; China Postdoctoral Science Foundation[2019T120963]
WOS关键词	IN-SITU ; TWIN BOUNDARIES ; RADIATION ; EVOLUTION ; TRANSFORMATION ; MECHANISMS ; METALS ; NI
WOS研究方向	Materials Science ; Nuclear Science & Technology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000653052500004
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Natural Science Fund of Zhejiang Province ; Natural Science Fund of Ningbo City ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/137253]
专题	中国科学院近代物理研究所
通讯作者	Zhu, Yabin; Yao, Cunfeng; Gao, Peifeng
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 3.Changsha Univ Sci & Technol, Sch Energy & Power Engn, Changsha 410114, Peoples R China 4.Linkoping Univ, Dept Phys, Thin Film Phys Div, Linkoping, Sweden 5.Lanzhou Univ, Coll Civil Engn & Mech, Key Lab Mech Western Disaster & Environm, Minist Educ, Lanzhou 730000, Peoples R China 6.Ningbo Univ, Sch Phys Sci & Technol, Ningbo 315211, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ji,Chai, Jianlong,Zhang, Hongpeng,et al. Microstructure investigations of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy under Fe ions irradiation[J]. JOURNAL OF NUCLEAR MATERIALS,2021,552:7.
APA	Wang, Ji.,Chai, Jianlong.,Zhang, Hongpeng.,Tai, Pengfei.,Liu, Chao.,...&Gao, Peifeng.(2021).Microstructure investigations of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy under Fe ions irradiation.JOURNAL OF NUCLEAR MATERIALS,552,7.
MLA	Wang, Ji,et al."Microstructure investigations of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy under Fe ions irradiation".JOURNAL OF NUCLEAR MATERIALS 552(2021):7.