Evaluation of Ca-doped BaZrO3as the crucible refractory for melting TiAl alloys
文献类型：期刊论文
| 作者 | Chen, Guangyao1; Kang, Juyun2; Lan, Baobao2; Gao, Pengyue2; Lu, Xionggang2,3; Li, Chonghe2,3 |
| 刊名 | Ceramics International
 |
| 出版日期 | 2018 |
| 卷号 | 44期号:11页码:12627-12633 |
| ISSN号 | 02728842 |
| DOI | 10.1016/j.ceramint.2018.04.061 |
| 英文摘要 | In this study, a new Ca-doped BaZrO3refractory was designed by using thermodynamics approaches and tested for its applicability for vacuum induction melting (VIM) of TiAl alloys. The influence of CaO on the BaZrO3phase constitution and microstructure, as well as the key features of the TiAl melt interaction with the Ca-doped BaZrO3crucibles were investigated by X-ray diffraction (XRD), optical microscopy (OM) and scanning electron microscopy (SEM). Results revealed that the Ca-doped BaZrO3refractory consisted of Ba1-xCaxZrO3and CaO phases. An obvious interaction occurred during the melting of the TiAl alloy in the Ca-doped BaZrO3crucible along with the generation of BaAl2O4as a reaction product, with formation of a reaction layer up to 5 µm thick. Dissolution of Ca-doped BaZrO3refractory in the TiAl melt was the main reason for the alloy-crucible reaction. Moreover, the Ca-doped BaZrO3crucible was found to substantially reduce the contamination of the TiAl alloy, with lower oxygen concentration as compared with other conventional oxide crucibles. Overall results confirmed that vacuum induction melting using the Ca-doped BaZrO3refractory can be considered as an appropriate method for the fabrication of TiAl alloys. © 2018 Elsevier Ltd and Techna Group S.r.l. |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25134]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Materials Genome Institute of Shanghai University, Shanghai; 201900, China; 2.State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai; 200072, China; 3.Shanghai Special Casting Engineering Technology Research Center, Shanghai; 201605, China |
| 推荐引用方式 GB/T 7714 | Chen, Guangyao,Kang, Juyun,Lan, Baobao,et al. Evaluation of Ca-doped BaZrO3as the crucible refractory for melting TiAl alloys[J]. Ceramics International,2018,44(11):12627-12633. |
| APA | Chen, Guangyao,Kang, Juyun,Lan, Baobao,Gao, Pengyue,Lu, Xionggang,&Li, Chonghe.(2018).Evaluation of Ca-doped BaZrO3as the crucible refractory for melting TiAl alloys.Ceramics International,44(11),12627-12633. |
| MLA | Chen, Guangyao,et al."Evaluation of Ca-doped BaZrO3as the crucible refractory for melting TiAl alloys".Ceramics International 44.11(2018):12627-12633. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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