Characterization of beta flecks and local solute segregation in Ti-17 alloy ingots produced by vacuum arc remelting
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 | MATERIALS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2024-11-04 |
| 页码 | 10 |
| 关键词 | beta flecks melt defects titanium alloy ingot vacuum arc remelting local solute segregation |
| ISSN号 | 0267-0836 |
| DOI | 10.1177/02670836241295712 |
| 通讯作者 | Liu, Jianrong(jrliu@imr.ac.cn) ; Wang, Qingjiang(qjwang@imr.ac.cn) |
| 英文摘要 | As a melt defect, beta flecks (beta-flecks) may exist in many metastable beta and alpha + beta titanium alloys. In this work, the main characteristics of beta-flecks, including detectability, macroscopic morphology, microstructural characteristics, and chemical composition, were investigated in an industrial-scale Ti-17 ingot produced by the vacuum arc remelting (VAR) process. The results show that beta-flecks can be identified as dark areas in the ingot head through a specific heat treatment. Enrichment of Cr and Zr, along with deficiency of Mo, is found in the beta-flecks, resulting in a lowered beta transformation temperature (T beta) and increased beta phase stability in local areas. When soaked at temperatures from 45 to 15 degrees C below T beta, beta-flecks can be distinctly visualized by adjusting the volume of alpha phase. Additionally, beta-flecks exhibit continuous fluctuations in both chemical composition and microstructure, closely related to the size of the beta-flecks. Based on the findings, it can be concluded that beta-flecks may originate from residual segregated liquid during the final stage of solidification processes, forming as local defects in the final solidified microstructure. Analytical and numerical modeling provide insights into how solute elements segregate and evolve into beta-fleck defects. |
| 资助项目 | Fundamental Research Program of Shanxi Province[202103021223052] ; Scientific Research Foundation of Taiyuan University of Technology[2022QN152] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001347123800001 |
| 出版者 | SAGE PUBLICATIONS INC |
| 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, Peoples R China 2.China Natl Erzhong Grp, Deyang Wanhang Die Forging Co Ltd, Deyang, 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. Characterization of beta flecks and local solute segregation in Ti-17 alloy ingots produced by vacuum arc remelting[J]. MATERIALS SCIENCE AND TECHNOLOGY,2024:10. |
| APA | Yin, Xuchen.,Liu, Jianrong.,Wang, Qingjiang.,Li, Wenyuan.,Deng, Hao.,...&Li, Wenhui.(2024).Characterization of beta flecks and local solute segregation in Ti-17 alloy ingots produced by vacuum arc remelting.MATERIALS SCIENCE AND TECHNOLOGY,10. |
| MLA | Yin, Xuchen,et al."Characterization of beta flecks and local solute segregation in Ti-17 alloy ingots produced by vacuum arc remelting".MATERIALS SCIENCE AND TECHNOLOGY (2024):10. |
入库方式： OAI收割
来源：金属研究所
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