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Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys
Shao, Z. J.1; Li, Y.1,3; Zhou, B.1; Zhang, S. Z.1,3; Xu, L.2
Corresponding AuthorZhang, S. Z.(szzhangyt@163.com) ; Xu, L.(lxu@imr.ac.cn)
2020
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume159Pages:8
AbstractThe microstructural evolution and mechanical properties of powder metallurgy (PM) Ti-22Al-24Nb-0.5Mo prepared by combination of hot isostatic pressing (HIP), ring rolling, and heat treatment were investigated. The density and micropore distributions of PM alloys under HIP are relatively homogeneous. Ring rolled and solution treatment in the (alpha(2) + B2 + O) region led to the refinement of grain size and long lath O phase and alpha(2) phase mostly located at the grain boundaries. Aging treatment in the (B2 + O) region caused the occurrence of peritectoid reaction B2 + alpha(2) -> O owing to the segregation of the Nb element and refined the acicular O phase. The mechanical properties of PM alloys varied with the size and volume fraction of O phase and alpha(2) phase. The long lath O phases improve the elongation and acicular O precipitates are benefit to the elevation of alloy strength.
KeywordTi-22Al-24Nb-0.5Mo alloy Thermomechanical treatment Microstructure Ti2AlNb phase Mechanical properties
Funding OrganizationNatural Science Foundation of Shandong Province, China
DOI10.1016/j.matchar.2019.110022
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of Shandong Province, China[ZR2019MEM012]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS IDWOS:000509819000054
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137601
Collection中国科学院金属研究所
Corresponding AuthorZhang, S. Z.; Xu, L.
Affiliation1.Yantai Univ, Sch Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Yantai Univ, Inst Adv Studies Precis Mat, Yantai 264005, Peoples R China
Recommended Citation
GB/T 7714
Shao, Z. J.,Li, Y.,Zhou, B.,et al. Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys[J]. MATERIALS CHARACTERIZATION,2020,159:8.
APA Shao, Z. J.,Li, Y.,Zhou, B.,Zhang, S. Z.,&Xu, L..(2020).Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys.MATERIALS CHARACTERIZATION,159,8.
MLA Shao, Z. J.,et al."Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys".MATERIALS CHARACTERIZATION 159(2020):8.
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