Saturation of ion irradiation effects in MAX phase Cr2AlC
Huang, Q; Han, H; Liu, RD; Lei, GH; Yan, L; Zhou, J; Huang, Q; Yan, L (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
2016
发表期刊ACTA MATERIALIA
ISSN1359-6454
卷号110期号:-页码:1—7
文章类型期刊文献
摘要Cr2AlC materials were irradiated with 7 MeV Xe26+ ions and 500 keV He2+ ions at room temperature. A structural transition with an increased c lattice parameter and a decreased a lattice parameter occurs after irradiation to doses above 1 dpa. Nevertheless, the modified structure is stable up to the dose of 5.2 dpa without obvious lattice disorder. The three samples irradiated to doses above 1 dpa have comparable lattice parameters, hardness and modulus values, suggesting a saturation of irradiation effects in Cr2AlC. The structural transition and irradiation effects saturation are ascribed to irradiation-induced antisite defects (Cr-Al and Al-Cr) and C interstitials, which is supported by the calculations of the formation energies of various defects in Cr2AlC. The irradiation-induced antisite defects and C interstitials may be critical to understand the excellent resistance to irradiation-induced amorphization of MAX phases. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词m(n+1)Ax(n) Phases Ti3alc2 Ti3sic2 Damage Resistance Tolerance
DOI10.1016/j.actamat.2016.03.021
收录类别SCI
语种英语
WOS记录号WOS:000374810400001
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25828
专题中科院上海应用物理研究所2011-2018年
通讯作者Yan, L (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
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GB/T 7714
Huang, Q,Han, H,Liu, RD,et al. Saturation of ion irradiation effects in MAX phase Cr2AlC[J]. ACTA MATERIALIA,2016,110(-):1—7.
APA Huang, Q.,Han, H.,Liu, RD.,Lei, GH.,Yan, L.,...&Yan, L .(2016).Saturation of ion irradiation effects in MAX phase Cr2AlC.ACTA MATERIALIA,110(-),1—7.
MLA Huang, Q,et al."Saturation of ion irradiation effects in MAX phase Cr2AlC".ACTA MATERIALIA 110.-(2016):1—7.
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