Evolution of Dislocation Structure During Room Temperature Compressive Creep of a New α plus β Titanium Alloy
文献类型：期刊论文
| 作者 | Zhang, Mengmeng1,2; Qiu, Jianke1,2; Hu, Xiaobing3; Fang, Chao1,2; Zhang, Mingjie1,2; Ma, Yingjie1,2; Lei, Jiafeng1,2; Yang, Rui1,2 |
| 刊名 | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
 |
| 出版日期 | 2024-12-07 |
| 页码 | 14 |
| ISSN号 | 1073-5623 |
| DOI | 10.1007/s11661-024-07665-5 |
| 通讯作者 | Qiu, Jianke(jkqiu@imr.ac.cn) ; Hu, Xiaobing(xbhu@northwestern.edu) ; Yang, Rui(ryang@imr.ac.cn) |
| 英文摘要 | A precise understanding of cold compressive creep behavior is essential for elucidating the failure mechanisms of titanium pressure hulls in deep-sea service and designing enhanced alloys with optimized performance. In this study, we systematically investigated room temperature compressive creep mechanisms in an alpha + beta titanium alloy featuring a multi-level lamellar microstructure under varying applied stresses, using transmission electron microscopy (TEM) analysis. At an applied stress of 0.75 sigma 0.2, the alloy exhibits minimal plastic strain accumulation, with most dislocations remaining immobile. Once the stress threshold is exceeded, planar slip initiates along the prismatic plane, followed by the activation of basal and pyramidal slip at higher stress levels. Under high stress (0.95 sigma 0.2), creep deformation is primarily governed by prismatic and basal slip. Slip transfer between similar oriented grains within a microtextured region frequently occurs at stresses above 0.83 sigma 0.2. Additionally, we observed that higher applied stresses suppress the cross-slip of prismatic screw dislocations within the alpha grains. |
| 资助项目 | National Key R & D Program of China[2021YFC2800500] ; National Key R & D Program of China[2022YFB3708300] ; CAS Project for Young Scientists in Basic Research[YSBR-025] ; Youth Innovation Promotion Association CAS[2022188] ; National Natural Science Foundation of China[91960202] ; National Natural Science Foundation of China[51701219] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001371509300001 |
| 出版者 | SPRINGER |
| 资助机构 | National Key R & D Program of China ; CAS Project for Young Scientists in Basic Research ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Qiu, Jianke; Hu, Xiaobing; Yang, Rui |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Mengmeng,Qiu, Jianke,Hu, Xiaobing,et al. Evolution of Dislocation Structure During Room Temperature Compressive Creep of a New α plus β Titanium Alloy[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2024:14. |
| APA | Zhang, Mengmeng.,Qiu, Jianke.,Hu, Xiaobing.,Fang, Chao.,Zhang, Mingjie.,...&Yang, Rui.(2024).Evolution of Dislocation Structure During Room Temperature Compressive Creep of a New α plus β Titanium Alloy.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,14. |
| MLA | Zhang, Mengmeng,et al."Evolution of Dislocation Structure During Room Temperature Compressive Creep of a New α plus β Titanium Alloy".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2024):14. |
入库方式： OAI收割
来源：金属研究所
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