| Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys | |
| Cao, Ruxin1,2; Liu, Renci1,2; Ye, Xicong3; Xu, Mengxi1,2; Shan, Zhiqiang2; Cui, Yuyou1,2; Yang, Rui1,2 | |
| Corresponding Author | Liu, Renci(rcliu@imr.ac.cn) ; Yang, Rui(ryang@imr.ac.cn) |
| 2022-12-01 | |
| Source Publication | MATERIALS & DESIGN
 |
| ISSN | 0264-1275 |
| Volume | 224Pages:10 |
| Abstract | The morphology and crystal structure of borides in Ti-45Al-2Mn-2Nb-xB (at.%) alloys containing different amount of B have been investigated to reveal the relationship between B content and boride formation. In alloys containing 0.25 at.% and 0.5 at.% B, boride particles are curved and flake-like, and are distributed at b dendrite boundaries, resulting from late nucleation and constrained by matrix during growth. Curved, ribbon-like boride particles are observed to randomly distribute in alloy containing 0.75 at.% B, and insuf-ficient behind-time supply of B atoms to the growth front is believed to be responsible for their irregularity and large curvature bending and branching. In alloys containing 1.0 at.% or higher B, straight needle/rod-like boride particles dominate, and a small number of blocky particles appear in alloys containing 1.25 at.% and 1.5 at.% B. Most boride particles are of C32-TiB2 and have their major axes along [0001] or [1 (2) over bar 10] in all alloys studied in this work, and B-f-TiB and D7(b)-Ti3B4 randomly appear in conjunction with C32-TiB2 to form intergrowths, while B27-TiB particles are free standing and only appear in alloys containing 1 at.% or higher B. (C) 2022 The Author(s). Published by Elsevier Ltd. |
| Keyword | gamma-TiAl Borides Solidification Formation mechanism Morphology |
| Funding Organization | CAS Project for Young Scientists in Basic Research ; National Natural Science Foundation of China ; Major Special Science and Technology Project of Yunnan Province |
| DOI | 10.1016/j.matdes.2022.111378 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | CAS Project for Young Scientists in Basic Research ; National Natural Science Foundation of China ; Major Special Science and Technology Project of Yunnan Province ; [YSBR-025] ; [51701209] ; [51604161] ; [202002AB080001-3] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000891761700007 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175981 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Renci; Yang, Rui |
| Affiliation | 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.China Three Gorges Univ, Coll Mech & Power Engn, Yichang 443002, Peoples R China |
| Recommended Citation GB/T 7714 | Cao, Ruxin,Liu, Renci,Ye, Xicong,et al. Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys[J]. MATERIALS & DESIGN,2022,224:10. |
| APA | Cao, Ruxin.,Liu, Renci.,Ye, Xicong.,Xu, Mengxi.,Shan, Zhiqiang.,...&Yang, Rui.(2022).Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys.MATERIALS & DESIGN,224,10. |
| MLA | Cao, Ruxin,et al."Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys".MATERIALS & DESIGN 224(2022):10. |
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