Mechanism of microstructure evolution and mechanical properties of high Nb-TiAl alloy in transition zone of laser-deposited Ti60/TiAl alloys
文献类型：期刊论文
| 作者 | Ding, Jie1; Chen, Feng1; Deng, Qinghua1; Li, Ruifeng1; Xu, Shuai2; Yang, Liang3; Lin, Junpin4; Chang, Hui1 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 923页码:11 |
| 关键词 | High Nb-Containing TiAl alloy Microstructure evolution Mechanical properties Laser melting deposition |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2024.147726 |
| 通讯作者 | Ding, Jie(dingjie0122@sina.cn) ; Chang, Hui() |
| 英文摘要 | The transition zone of the Ti/TiAl alloy with a nominal composition of TiAl-5.5Nb was fabricated using laser melting deposition (LMD) of a powder mixture consisting of 30 % Ti60 and 70 % Ti-45Al-8Nb (wt. %). The microstructural evolution and mechanical properties were investigated. Upon thermal exposure at 650 degrees C and 800 degrees C, three distinct types of gamma phase were observed: gamma lamellae, gamma blocks, and nanoscale gamma clusters. Additionally, nanoscale omega particles were observed to coarsen at 650 degrees C, while they dissolved into the B2 phase after exposure at 800 degrees C. Notably, the tensile strength, yield strength, and plastic elongation of the specimens were significantly improved by 25.5 %, 23.9 %, and 47.2 %, respectively, following thermal exposure at 800 degrees C. This enhancement was attributed to the dissolution of omega particles and the subsequent precipitation of gamma blocks. |
| 资助项目 | Na-tional Science Foundation for Young Scientists of China[52001164] ; Na-tional Science Foundation for Young Scientists of China[52301173] ; National Key Research and Development Program of China[2021YFB3700502] ; State Key Laboratory of Solidification Processing in NPU[SKLSP202215] ; Natural Science Foundation of Chongqing[CSTB2023NSCQ-MSX0972] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001410211600001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Na-tional Science Foundation for Young Scientists of China ; National Key Research and Development Program of China ; State Key Laboratory of Solidification Processing in NPU ; Natural Science Foundation of Chongqing ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ding, Jie; Chang, Hui |
| 作者单位 | 1.Nanjing Tech Univ, Tech Inst Adv Mat, Coll Mat Sci & Engn, Nanjing 210009, Peoples R China 2.Southwest Univ, Sch Mat & Energy, Chongqing 400715, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 4.Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Jie,Chen, Feng,Deng, Qinghua,et al. Mechanism of microstructure evolution and mechanical properties of high Nb-TiAl alloy in transition zone of laser-deposited Ti60/TiAl alloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2025,923:11. |
| APA | Ding, Jie.,Chen, Feng.,Deng, Qinghua.,Li, Ruifeng.,Xu, Shuai.,...&Chang, Hui.(2025).Mechanism of microstructure evolution and mechanical properties of high Nb-TiAl alloy in transition zone of laser-deposited Ti60/TiAl alloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,923,11. |
| MLA | Ding, Jie,et al."Mechanism of microstructure evolution and mechanical properties of high Nb-TiAl alloy in transition zone of laser-deposited Ti60/TiAl alloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 923(2025):11. |
入库方式： OAI收割
来源：金属研究所
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