Structures and formation mechanism of borides with varied morphologies in cast y-TiAl alloys
文献类型：期刊论文
| 作者 | Cao, Ruxin1,2; Liu, Renci1,2; Yang, Chao3; Cui, Yuyou1,2; Yang, Rui1,2 |
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 232页码:9 |
| 关键词 | Cast Boride Morphology Structure |
| ISSN号 | 0264-1275 |
| DOI | 10.1016/j.matdes.2023.112122 |
| 通讯作者 | Liu, Renci(rcliu@imr.ac.cn) ; Yang, Rui(ryang@imr.ac.cn) |
| 英文摘要 | Borides with varied morphologies and structures obtained by changing B content in as-cast Ti-45Al-2Mn-2Nb alloys are investigated. With the increase of B content, morphologies of borides change from curved to straight, and flake shape, ribbon shape, needle/rod shape, and blocky appear in turn. Curved boride particles have a lamellar structure composed of TiB2 and B2 layers, accompanied by the random appear-ance and distribution of Ti3B4 and Bf-TiB layers. Except for the absence of the B2 layer, straight needle-like and blocky boride particles have roughly the same structure as curved boride particles, revealing that the formation of curved boride particles is accompanied by divorced eutectic with the matrix and internal irregular eutectic, while no eutectics occurs in straight boride particles. The lack of B atoms during solid-ification in alloys with lower B content results in a less regular structure and higher stacking fault density of curved boride particles compared to straight boride particles in alloys with higher B content. In addi-tion, some needle-like boride particles are observed to have pure B27-TiB structure without intergrowth. The difference in morphologies and structures can be attributed to the difference in formation mecha-nism and crystallographic structures of the borides.& COPY; 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| 资助项目 | CAS Project for Young Scientists in Basic Research[YSBR-025] ; Major Special Science and Tech- nology Project of Yunnan Province[202002AB080001-3] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001060168900001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | CAS Project for Young Scientists in Basic Research ; Major Special Science and Tech- nology Project of Yunnan Province |
| 源URL | [http://ir.imr.ac.cn/handle/321006/179092]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Renci; 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.AECC Commercial Aeroengine Co LTD, Shanghai 200241, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Ruxin,Liu, Renci,Yang, Chao,et al. Structures and formation mechanism of borides with varied morphologies in cast y-TiAl alloys[J]. MATERIALS & DESIGN,2023,232:9. |
| APA | Cao, Ruxin,Liu, Renci,Yang, Chao,Cui, Yuyou,&Yang, Rui.(2023).Structures and formation mechanism of borides with varied morphologies in cast y-TiAl alloys.MATERIALS & DESIGN,232,9. |
| MLA | Cao, Ruxin,et al."Structures and formation mechanism of borides with varied morphologies in cast y-TiAl alloys".MATERIALS & DESIGN 232(2023):9. |
入库方式： OAI收割
来源：金属研究所
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