IMR OpenIR
The formation of precipitates and its effect on grain structure in V-4Cr-4Ti alloys with yttrium addition
Peng, Lixia; Jiang, Chunli; Li, Xiongwei; Zhou, Ping; Li, Yufei; Lai, Xinchun; Peng, LX; Lai, XC (reprint author), China Acad Engn Phys, Inst Mat Res, Jiangyou City 621908, Sichuan Provinc, Peoples R China.
2017-02-15
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume694Pages:1165-1174
AbstractThe formation of precipitates and its effect on the grain structure in V-4Cr-4Ti alloys with and without yttrium addition have been investigated. As-cast and recrystallized grain structure and the secondphase particles were studied via OM (Optical Microscopy), SEM (Scanning Electron Microscopy), TEM (Transmission Electron Microscopy), and EBSD (Electron Back-scattering Diffraction). It was found that yttrium oxides inclusions with size of micrometer level existed in all yttriumcontaining V-4Cr-4Ti alloys including as-cast, rolled, annealed and forged states. It was revealed that fine yttrium-enriched particles, less than 200 nm in size, were frequently observed in V-4Cr-4Ti-0.3Y alloys annealed or forged above 1000 degrees C. Yttriurh addition was observed to have refining effect on the as-cast grains and homogenization effect on the annealed grain structure of rolled sheets. Yttrium addition mitigated the inhomogeneity of recrystallized grain structure in rolled V-4Cr-4Ti sheets due to the enormous reduction of nonuniform Ti(C, N, O) particles, and inhibited the abnormal growth of grains at relatively high annealing temperatures because of the formation of the finer yttrium-enriched precipitates. (C) 2016 Elsevier B.V. All rights reserved.; The formation of precipitates and its effect on the grain structure in V-4Cr-4Ti alloys with and without yttrium addition have been investigated. As-cast and recrystallized grain structure and the secondphase particles were studied via OM (Optical Microscopy), SEM (Scanning Electron Microscopy), TEM (Transmission Electron Microscopy), and EBSD (Electron Back-scattering Diffraction). It was found that yttrium oxides inclusions with size of micrometer level existed in all yttriumcontaining V-4Cr-4Ti alloys including as-cast, rolled, annealed and forged states. It was revealed that fine yttrium-enriched particles, less than 200 nm in size, were frequently observed in V-4Cr-4Ti-0.3Y alloys annealed or forged above 1000 degrees C. Yttriurh addition was observed to have refining effect on the as-cast grains and homogenization effect on the annealed grain structure of rolled sheets. Yttrium addition mitigated the inhomogeneity of recrystallized grain structure in rolled V-4Cr-4Ti sheets due to the enormous reduction of nonuniform Ti(C, N, O) particles, and inhibited the abnormal growth of grains at relatively high annealing temperatures because of the formation of the finer yttrium-enriched precipitates. (C) 2016 Elsevier B.V. All rights reserved.
description.department[peng, lixia ; jiang, chunli ; zhou, ping ; li, yufei ; lai, xinchun] china acad engn phys, inst mat res, jiangyou city 621908, sichuan provinc, peoples r china ; [li, xiongwei] chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china
KeywordYttrium Addition V-4cr-4ti Alloy Precipitates Grain Structure
Subject AreaChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation for Young Scholars of China [11105127]; Basic research projects of national defense [B1520133006]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78293
Collection中国科学院金属研究所
Corresponding AuthorPeng, LX; Lai, XC (reprint author), China Acad Engn Phys, Inst Mat Res, Jiangyou City 621908, Sichuan Provinc, Peoples R China.
Recommended Citation
GB/T 7714
Peng, Lixia,Jiang, Chunli,Li, Xiongwei,et al. The formation of precipitates and its effect on grain structure in V-4Cr-4Ti alloys with yttrium addition[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,694:1165-1174.
APA Peng, Lixia.,Jiang, Chunli.,Li, Xiongwei.,Zhou, Ping.,Li, Yufei.,...&Lai, XC .(2017).The formation of precipitates and its effect on grain structure in V-4Cr-4Ti alloys with yttrium addition.JOURNAL OF ALLOYS AND COMPOUNDS,694,1165-1174.
MLA Peng, Lixia,et al."The formation of precipitates and its effect on grain structure in V-4Cr-4Ti alloys with yttrium addition".JOURNAL OF ALLOYS AND COMPOUNDS 694(2017):1165-1174.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Peng, Lixia]'s Articles
[Jiang, Chunli]'s Articles
[Li, Xiongwei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Peng, Lixia]'s Articles
[Jiang, Chunli]'s Articles
[Li, Xiongwei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Peng, Lixia]'s Articles
[Jiang, Chunli]'s Articles
[Li, Xiongwei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.