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Configuration and the recovery of defects in TiAl intermetallic compounds studied by positron annihilation
Li, ZX; Wang BY(王宝义); Wang DN(王丹妮); Zhang LZ(张兰芝); Qin XB(秦秀波); Wang, BY; Wang, DN; Zhang, LZ; Qin, XB; Xue, DS
2010
发表期刊INTERMETALLICS
卷号18期号:11页码:2259-2261
通讯作者[Wang, B. Y. ; Wang, D. N. ; Zhang, L. Z. ; Qin, X. B.] Chinese Acad Sci, Inst High Energy Phys, Key Lab Nucl Anal Tech, Beijing 100049, Peoples R China ; [Li, Z. X. ; Xue, D. S.] Lanzhou Univ, Minist Educ China, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
文章类型Article
摘要Defects of doped and neutron-irradiated TiAl alloys were investigated using positron annihilation lifetime and coincidence doppler broadening spectroscopies In doped alloys, niobium additions replaced some atoms in the lattice, which maintains the ordered structure as undoped, while silicon additions Induced Ti vacancies After neutron irradiation, a number of vacancy-type defects were Introduced, including some large vacancies, which can be congregated and hardly be eliminated by annealing at temperature above 1000 K The vacancy-type defects in (Ti(51)Al(49))(98)Si(2) began to migrate at 452 K, which is lower than in Ti(51)Al(49) alloy This probably resulted from vacancies induced by the addition of silicon, which facilitated atom migration and decreased initial recovery temperature. (C) 2010 Elsevier Ltd. All rights reserved.
关键词Titanium aluminides, based on TiAl Defects constitutional vacancies irradiation effects
学科领域Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
研究领域[WOS]Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
DOI10.1016/j.intermet.2010.06.009
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语种英语
研究领域[WOS]Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000282710400034
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239703
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Li, ZX,Wang BY,Wang DN,et al. Configuration and the recovery of defects in TiAl intermetallic compounds studied by positron annihilation[J]. INTERMETALLICS,2010,18(11):2259-2261.
APA Li, ZX.,王宝义.,王丹妮.,张兰芝.,秦秀波.,...&Xue, DS.(2010).Configuration and the recovery of defects in TiAl intermetallic compounds studied by positron annihilation.INTERMETALLICS,18(11),2259-2261.
MLA Li, ZX,et al."Configuration and the recovery of defects in TiAl intermetallic compounds studied by positron annihilation".INTERMETALLICS 18.11(2010):2259-2261.
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