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Influence of alloy element partitioning on strength of primary alpha phasein Ti-6Al-4V alloy
Zeng, LR; Chen, HL; Li, X; Lei, LM; Zhang, GP; Zhang, GP (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
2018-05-01
发表期刊JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
卷号34期号:5页码:782-787
摘要The partitioning effect of Al (alpha-phase stabilizer) and V elements (beta-phase stabilizer) on strength of the primary alpha phases in the alpha/beta Ti-6Al-4V alloy with the bimodal microstructure was investigated. It was found that partitioning of Al and V elements took place in the Ti-6Al-4V alloy during the recrystallization process, leading to the variation of the content of Al and V elements in the primary alpha phases with changing the volume fraction of the primary alpha phase. Nanoindentation tests reveal a general trend that the strength of the primary alpha phases increases with decreasing the volume fraction of the primary alpha phases, and such trend is independent on the loading direction relative to the c-axis of the alpha phase. The enhanced strength is attributed to the increase of the content of Al element in the primary alpha phase, but it is not dominated evidently by the change of the V content. The solid solution strengthening contributed from both the elastic strain introduced by the solute atoms and the variation of the density of states was estimated theoretically. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.; The partitioning effect of Al (alpha-phase stabilizer) and V elements (beta-phase stabilizer) on strength of the primary alpha phases in the alpha/beta Ti-6Al-4V alloy with the bimodal microstructure was investigated. It was found that partitioning of Al and V elements took place in the Ti-6Al-4V alloy during the recrystallization process, leading to the variation of the content of Al and V elements in the primary alpha phases with changing the volume fraction of the primary alpha phase. Nanoindentation tests reveal a general trend that the strength of the primary alpha phases increases with decreasing the volume fraction of the primary alpha phases, and such trend is independent on the loading direction relative to the c-axis of the alpha phase. The enhanced strength is attributed to the increase of the content of Al element in the primary alpha phase, but it is not dominated evidently by the change of the V content. The solid solution strengthening contributed from both the elastic strain introduced by the solute atoms and the variation of the density of states was estimated theoretically. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
部门归属[zeng, l. r. ; chen, h. l. ; li, x. ; zhang, g. p.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, liaoning, peoples r china ; [zeng, l. r. ; li, x.] univ chinese acad sci, beijing 100049, peoples r china ; [chen, h. l.] univ sci & technol china, sch mat sci & engn, shenyang 110016, liaoning, peoples r china ; [lei, l. m.] avic commercial aircraft engine co ltd, shanghai 200241, peoples r china
关键词Mechanical-properties Titanium-alloys Electronic-structure Ti-alloy Nanoindentation Behavior Microstructure Deformation Simulations Orientation
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者National Natural Science Foundation of China [51371180, 51571199]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79331
专题中国科学院金属研究所
通讯作者Zhang, GP (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
GB/T 7714
Zeng, LR,Chen, HL,Li, X,et al. Influence of alloy element partitioning on strength of primary alpha phasein Ti-6Al-4V alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(5):782-787.
APA Zeng, LR,Chen, HL,Li, X,Lei, LM,Zhang, GP,&Zhang, GP .(2018).Influence of alloy element partitioning on strength of primary alpha phasein Ti-6Al-4V alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(5),782-787.
MLA Zeng, LR,et al."Influence of alloy element partitioning on strength of primary alpha phasein Ti-6Al-4V alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.5(2018):782-787.
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