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Effect of Heat Treatment on Microstructure and Tensile Property of Ti-6Al-6V-2Sn Alloy
Wang, Qirui1,2; Lei, Xiaofei2; Hu, Ming2; Xu, Xin3; Yang, Rui2; Dong, Limin2
Corresponding AuthorXu, Xin(xuxin58@mail.sysu.edu.cn) ; Dong, Limin(lmdong@imr.ac.cn)
2021-04-01
Source PublicationMETALS
Volume11Issue:4Pages:12
AbstractThe microstructure and tensile properties of Ti-6Al-6V-2Sn alloy heat-treated at different solution and aging temperatures has been systematically investigated. Specimens were solution-treated at 970 degrees C (above the beta transus) and 920 degrees C (below the beta transus), respectively, followed by water quenching. When the alloy is quenched from 970 degrees C, alpha' (hcp) and alpha '' (orthorhombic) martensite phases co-exist in the microstructure. When it is quenched from 920 degrees C, alpha ' martensite phase does not form, while equiaxial primary alpha (alpha(p)) phase and alpha '' are found in the microstructure. The results also show that the strength of the alloy increases but the ductility deteriorates as the solution temperature becomes higher when the aging treatment is unchanged. This is because the volume fraction of equiaxial alpha(p) phase is lower but the volume fraction of the acicular secondary alpha (alpha(s)) phase is higher for higher solution temperature. When the alloy is aged at different temperatures after the solution treatment at 900 degrees C, the strength of the alloy decreases with the increase of aging temperature and the ductility shows the opposite trend as the size of the acicular alpha(s) becomes longer and its volume fraction is lower at higher aging temperature.
KeywordTi-6Al-6V-2Sn titanium alloy heat treatment microstructure
Funding OrganizationNational Science Foundation for Young Scientists of China
DOI10.3390/met11040556
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation for Young Scientists of China[51801199]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000643274300001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/162061
Collection中国科学院金属研究所
Corresponding AuthorXu, Xin; Dong, Limin
Affiliation1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
3.Sun Yat Sen Univ, Sch Mat, Shenzhen 518107, Peoples R China
Recommended Citation
GB/T 7714
Wang, Qirui,Lei, Xiaofei,Hu, Ming,et al. Effect of Heat Treatment on Microstructure and Tensile Property of Ti-6Al-6V-2Sn Alloy[J]. METALS,2021,11(4):12.
APA Wang, Qirui,Lei, Xiaofei,Hu, Ming,Xu, Xin,Yang, Rui,&Dong, Limin.(2021).Effect of Heat Treatment on Microstructure and Tensile Property of Ti-6Al-6V-2Sn Alloy.METALS,11(4),12.
MLA Wang, Qirui,et al."Effect of Heat Treatment on Microstructure and Tensile Property of Ti-6Al-6V-2Sn Alloy".METALS 11.4(2021):12.
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