IMR OpenIR
Fabrication of ultrafine-grained Ti-15Zr-x Cu alloys through martensite decompositions under thermomechanical coupling conditions
Gao, Wenwei1,2; Wang, Hai1; Koenigsmann, Konrad3; Zhang, Shuyuan1; Ren, Ling1; Yang, Ke1
Corresponding AuthorRen, Ling(lren@imr.ac.cn)
2022-11-10
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume127Pages:19-28
AbstractGrain refinement is a well-recognized method to simultaneously increase the strength and ductility of metallic materials. Fabrication of ultrafine-grained metals in bulk using a simple low-cost approach is a long-term goal for material scientists. In this work, based on the chemical composition of a biomedical Ti-15Zr alloy, a series of novel Ti-15Zr- x Cu ( x = 0, 3, 5, 7 wt.%) alloys were designed and fabricated. The alloys were quenched in the single ???phase region to obtain a martensitic microstructure and deformed in the temperature range of 710???750 ??C to obtain an ultrafine-grained microstructure through martensite decomposition under thermomechanical coupling conditions. Experimental results showed that Cu alloying could increase the dynamic recrystallization (DRX) nucleation rate due to its role in both refining martensitic lath width and increasing dislocation density. Cu alloying could also suppress grain growth due to the precipitated Ti 2 Cu particles exerting pinning forces on the grain boundaries. The optimal Cu content in the Ti-15Zr- x Cu alloy was determined to be 5 wt.%. After being subjected to a compression leading to a 70% height reduction at 730 ??C and 1 s ???1 , the grain size of the Ti-15Zr-5Cu alloy was only 180 ?? 70 nm. The tensile strength of the as-prepared alloy reached 975 ?? 10 MPa, which was 45% higher than that of the conventional Ti-15Zr alloy (673 ?? 16 MPa). This increase in strength was achieved without any reduction in ductility. The comprehensive mechanical properties of the ultrafinegrained Ti-15Zr-5Cu alloy are better than that of the Roxolid Ti???Zr alloy currently used for dental implants. ?? 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordTitanium alloy Dynamic recrystallization Hot deformation Nucleation
Funding OrganizationNational Key Re-search and Development Program of China ; Doctoral Scientific Research Foundation of Liaoning Province
DOI10.1016/j.jmst.2022.02.044
Indexed BySCI
Language英语
Funding ProjectNational Key Re-search and Development Program of China[2018YFC1106601] ; Doctoral Scientific Research Foundation of Liaoning Province[2020BS002]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000798055400002
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174135
Collection中国科学院金属研究所
Corresponding AuthorRen, Ling
Affiliation1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Univ Chicago, Chicago, IL 60637 USA
Recommended Citation
GB/T 7714
Gao, Wenwei,Wang, Hai,Koenigsmann, Konrad,et al. Fabrication of ultrafine-grained Ti-15Zr-x Cu alloys through martensite decompositions under thermomechanical coupling conditions[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,127:19-28.
APA Gao, Wenwei,Wang, Hai,Koenigsmann, Konrad,Zhang, Shuyuan,Ren, Ling,&Yang, Ke.(2022).Fabrication of ultrafine-grained Ti-15Zr-x Cu alloys through martensite decompositions under thermomechanical coupling conditions.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,127,19-28.
MLA Gao, Wenwei,et al."Fabrication of ultrafine-grained Ti-15Zr-x Cu alloys through martensite decompositions under thermomechanical coupling conditions".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 127(2022):19-28.
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
[Gao, Wenwei]'s Articles
[Wang, Hai]'s Articles
[Koenigsmann, Konrad]'s Articles
Baidu academic
Similar articles in Baidu academic
[Gao, Wenwei]'s Articles
[Wang, Hai]'s Articles
[Koenigsmann, Konrad]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Gao, Wenwei]'s Articles
[Wang, Hai]'s Articles
[Koenigsmann, Konrad]'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.