Variant selection mechanism of α phase associated with initial texture and cooling rate in near-α titanium alloy Ti65
文献类型：期刊论文
| 作者 | Zhao, Ding1; Fan, Jiangkun1,2,3; Zhang, Zhixin2; Liang, Xiaoyuan1; Chen, Zesen1; Chen, Zhiyong4; Lai, Minjie1,2,3; Tang, Bin1,2,3; Kou, Hongchao1,2,3; Wang, Qingjiang4 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2025-05-01 |
| 卷号 | 223页码:17 |
| 关键词 | Titanium alloy Variant selection Texture Cooling rate Intervariant boundary distribution |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2025.114874 |
| 通讯作者 | Fan, Jiangkun(jkfan@nwpu.edu.cn) |
| 英文摘要 | The elucidation of the impact of the initial texture and cooling rate on the variant selection (VS) mechanism of alpha-phase in titanium alloys is essential for optimising their microstructure and mechanical properties. In this study, Ti65 foils featuring three different initial textures underwent annealing in the alpha + beta phase region, followed by cooling at three different rates. Under slow cooling conditions (furnace cooling), the primary mechanism governing texture evolution of alpha-phase is the grain growth of the primary alpha (alpha p) grains. Consequently, the effect of the initial texture on the texture evolution of alpha-phase under slow cooling is ascribed to variations in the alpha p grains in the samples after heat treatments. Additionally, standard disorientation angle theta m distribution maps of the alpha texture under different beta textures are developed to predict the texture of the alpha p grains. In contrast, during rapid cooling (200 degrees C/min cooling and air cooling), texture evolution of alpha-phase is driven by the precipitation of the secondary alpha (alpha s) grains. In this case, a change in the cooling rate has no effect on the VS mechanism of alpha-phase at the alpha p/beta and beta/beta boundaries, but it changes the VS mechanism of alpha-phase at the parent beta grain interior. Therefore, the influence of the initial texture on VS mechanism of alpha-phase under rapid cooling varies with cooling rates, depending on the ratio of alpha s grains precipitated at alpha p/beta and beta/beta boundaries to the alpha s grains precipitated at the parent beta grain interior. |
| 资助项目 | National Natural Science Foundation of China[52074231] ; National Natural Science Foundation of China[52274396] ; National Key Research and Development Program of China[2021YFB3702604] ; China Postdoctoral Science Foundation[2023M732851] ; Chongqing Natural Science Foundation[cstc2020jcyj-msxmX1056] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001435988900001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; China Postdoctoral Science Foundation ; Chongqing Natural Science Foundation |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Fan, Jiangkun |
| 作者单位 | 1.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China 2.Northwestern Polytech Univ, Chongqing Innovat Ctr, Chongqing 401135, Peoples R China 3.Natl & Local Joint Engn Res Ctr Precis Thermoformi, Hanjiang Natl Lab, Xian 710072, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Ding,Fan, Jiangkun,Zhang, Zhixin,et al. Variant selection mechanism of α phase associated with initial texture and cooling rate in near-α titanium alloy Ti65[J]. MATERIALS CHARACTERIZATION,2025,223:17. |
| APA | Zhao, Ding.,Fan, Jiangkun.,Zhang, Zhixin.,Liang, Xiaoyuan.,Chen, Zesen.,...&Li, Jinshan.(2025).Variant selection mechanism of α phase associated with initial texture and cooling rate in near-α titanium alloy Ti65.MATERIALS CHARACTERIZATION,223,17. |
| MLA | Zhao, Ding,et al."Variant selection mechanism of α phase associated with initial texture and cooling rate in near-α titanium alloy Ti65".MATERIALS CHARACTERIZATION 223(2025):17. |
入库方式： OAI收割
来源：金属研究所
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