兰州大学机构库
Microstructure investigations of Fe50Mn30Co10Cr10 dual–phase high–entropy alloy under Fe ions irradiation
Wang, Ji1; Chai, Jianlong2; Zhang, Hongpeng2; P., Tai; C., Liu; L., Niu; W., He; W., Huang; R., Shu; L., Luo; W., Li; Y., Zhu; C., Yao; P., Gao
2021-08-15
Source PublicationJournal of Nuclear Materials
ISSN00223115
Volume552
AbstractAn 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 γ–γ, HCP Ε–Ε twinning structures and FCC γ–HCP Ε 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. © 2021
KeywordDefect-free Displacements per atoms Dual phase Dual phasis Fe-ions Free channels High entropy alloys Transformation induced plasticity Transmission electron Twinning-induced plasticities Defect-free Displacements per atoms Dual phase Dual phasis Fe-ions Free channels High entropy alloys Transformation induced plasticity Transmission electron Twinning-induced plasticities
PublisherElsevier B.V.
DOI10.1016/j.jnucmat.2021.153006
Indexed ByEI
Language英语
EI Accession Number20211710268542
EI KeywordsPlasticity
EI Classification Number408.2 Structural Members and Shapes ; 531 Metallurgy and Metallography ; 531.1 Metallurgy ; 543.1 Chromium and Alloys ; 543.2 Manganese and Alloys ; 545.1 Iron ; 545.2 Iron Alloys ; 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 641.1 Thermodynamics ; 741.3 Optical Devices and Systems ; 951 Materials Science
Original Document TypeJournal article (JA)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/451136
Collection兰州大学
Affiliation1.School of Physical Science and Technology, Ningbo University, Ningbo; 315211, China;
2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou; 730000, China;
3.Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou; 730000, China;
4.School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha; 410114, China;
5.Thin Film Physics Division, Department of Physics, Chemistry, and Biology (IFM), Linköping University, Linköping, Sweden;
6.Key Laboratory of Mechanics on Western Disaster and Environment, Ministry of Education, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou; 730000, China
Recommended Citation
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.
APA Wang, Ji.,Chai, Jianlong.,Zhang, Hongpeng.,P., Tai.,C., Liu.,...&P., Gao.(2021).Microstructure investigations of Fe50Mn30Co10Cr10 dual–phase high–entropy alloy under Fe ions irradiation.Journal of Nuclear Materials,552.
MLA Wang, Ji,et al."Microstructure investigations of Fe50Mn30Co10Cr10 dual–phase high–entropy alloy under Fe ions irradiation".Journal of Nuclear Materials 552(2021).
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