| 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 Author | Zhang, S. Z.(szzhangyt@163.com) ; Xu, L.(lxu@imr.ac.cn) |
| 2020 | |
| Source Publication | MATERIALS CHARACTERIZATION
 |
| ISSN | 1044-5803 |
| Volume | 159Pages:8 |
| Abstract | The 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. |
| Keyword | Ti-22Al-24Nb-0.5Mo alloy Thermomechanical treatment Microstructure Ti2AlNb phase Mechanical properties |
| Funding Organization | Natural Science Foundation of Shandong Province, China |
| DOI | 10.1016/j.matchar.2019.110022 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of Shandong Province, China[ZR2019MEM012] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing |
| WOS ID | WOS:000509819000054 |
| Publisher | ELSEVIER SCIENCE INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/137603 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, S. Z.; Xu, L. |
| Affiliation | 1.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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