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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
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume34Issue:5Pages:782-787
AbstractThe 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.
description.department[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
KeywordMechanical-properties Titanium-alloys Electronic-structure Ti-alloy Nanoindentation Behavior Microstructure Deformation Simulations Orientation
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51371180, 51571199]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79331
Collection中国科学院金属研究所
Corresponding AuthorZhang, GP (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
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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