Quantitative Characterization of Beta Fleck Segregation in a Ti-17 Alloy Ingot Produced by Vacuum Arc Remelting Without Electromagnetic Stirring
文献类型：期刊论文
| 作者 | Yin, Xuchen1,2; Liu, Jianrong3; Wang, Qingjiang3; Li, Wenyuan3; Deng, Hao2; Wang, Zhoutian2; Luo, Hengjun2; Li, Wenhui1 |
| 刊名 | METALS AND MATERIALS INTERNATIONAL
 |
| 出版日期 | 2024-11-28 |
| 页码 | 13 |
| 关键词 | Beta flecks Segregation defects Titanium alloy ingot Vacuum arc remelting |
| ISSN号 | 1598-9623 |
| DOI | 10.1007/s12540-024-01852-0 |
| 通讯作者 | Liu, Jianrong(jrliu@imr.ac.cn) ; Wang, Qingjiang(qjwang@imr.ac.cn) |
| 英文摘要 | Beta flecks (beta-flecks), known as segregation defects, commonly occur in some alpha + beta and metastable beta titanium alloys with a high content of beta-stabilizing elements such as Cr and Fe, seriously impacting the mechanical properties of the final product. In this work, an experimental Ti-17 alloy ingot was produced by vacuum arc remelting (VAR) processes without electromagnetic stirring. beta-flecks were identified throughout the entire ingot. To quantitatively characterize the segregation extent and morphological complexity of beta-flecks, three parameters, including quantity (Q), segregation ratio (R beta) and fractal dimension (DPA), were introduced. The results show that beta-flecks with two shapes exist in three regions: irregular beta-flecks formed in a spherical shape region (Region A) in the lower part and a heart shape region (Region B) in the upper part of the equiaxed zone, while channel-like beta-flecks formed in a V shape region (Region C) in the hot top zone. beta-flecks formed in Region A show a higher degree of segregation extent (higher Q and R beta) and morphological complexity (higher DPA), compared to those in Region B. These findings suggest that solidification conditions, particularly temperature gradient (G) and solidification rate (R), play crucial roles in the formation of beta-flecks during the VAR process. By quantifying permeability in different sections of the equiaxed zone, liquid flow and its impact on the formation of beta-flecks during solidification processes are discussed. |
| 资助项目 | Fundamental Research Program of Shanxi Province ; Scientific Research Foundation of Taiyuan University of Technology[2022QN152] ; [202103021223052] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001365205300001 |
| 出版者 | KOREAN INST METALS MATERIALS |
| 资助机构 | Fundamental Research Program of Shanxi Province ; Scientific Research Foundation of Taiyuan University of Technology |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Jianrong; Wang, Qingjiang |
| 作者单位 | 1.Taiyuan Univ Technol, Coll Aeronaut & Astronaut, Taiyuan 030024, Peoples R China 2.China Natl Erzhong Grp Deyang Wanhang Die Forging, Deyang 618000, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Xuchen,Liu, Jianrong,Wang, Qingjiang,et al. Quantitative Characterization of Beta Fleck Segregation in a Ti-17 Alloy Ingot Produced by Vacuum Arc Remelting Without Electromagnetic Stirring[J]. METALS AND MATERIALS INTERNATIONAL,2024:13. |
| APA | Yin, Xuchen.,Liu, Jianrong.,Wang, Qingjiang.,Li, Wenyuan.,Deng, Hao.,...&Li, Wenhui.(2024).Quantitative Characterization of Beta Fleck Segregation in a Ti-17 Alloy Ingot Produced by Vacuum Arc Remelting Without Electromagnetic Stirring.METALS AND MATERIALS INTERNATIONAL,13. |
| MLA | Yin, Xuchen,et al."Quantitative Characterization of Beta Fleck Segregation in a Ti-17 Alloy Ingot Produced by Vacuum Arc Remelting Without Electromagnetic Stirring".METALS AND MATERIALS INTERNATIONAL (2024):13. |
入库方式： OAI收割
来源：金属研究所
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