التفاصيل البيبلوغرافية
| العنوان: |
A comparative study on the corrosion of Al2O3, MgO and BaZrO3 refractory by TiZrNbV high-entropy alloy. |
| المؤلفون: |
Zhang, Man1 (AUTHOR), Chen, Guangyao1,2,3 (AUTHOR) cgybless1@shu.edu.cn, Cai, Zheyu1 (AUTHOR), Liu, Jian1 (AUTHOR), Tang, Yu1,4 (AUTHOR) tangyu15@zju.edu.cn, Hou, Xinmei5 (AUTHOR), Bai, Shuxin4 (AUTHOR), Li, Chonghe1,2,3 (AUTHOR) chli@staff.shu.cn |
| المصدر: |
Ceramics International. Dec2023:Part A, Vol. 49 Issue 23, p37464-37474. 11p. |
| مصطلحات موضوعية: |
*BARIUM zirconate, *INTERFACIAL reactions, *ALUMINUM oxide, *REFRACTORY materials, *DIRECTIONAL solidification |
| مستخلص: |
To develop a potential refractory for directional solidification of high-entropy alloys with high-activity, the interfacial reaction of Al 2 O 3 , MgO, and BaZrO 3 refractory against TiZrNbV alloy melt was investigated. A comparative study of their corrosion resistance is performed to evaluate the applicability. Results indicated that the interaction occurred between the three refractory and the alloy melts, causing the refractory to be wetted by the alloy melt. The dissolution-corrosion was the main reason for the interaction, and the corrosion resistance extent of the refractory was proportional to the wetting angle of the alloy. Furthermore, Al 2 O 3 refractory was seriously corroded by the alloy melts, resulting in the appearance of a 50 μm thick pit. Then, the dissolved O in the refractory diffused into the alloy, causing a 400 μm thick interaction layer and Zr–O oxides reactants. In addition, MgO refractory could suppress its interaction with the alloy melt, due to the volatility of Mg vapor. However, there still existed a 50 μm thick interaction layer and Zr–O oxides products. Compared with Al 2 O 3 and MgO, BaZrO 3 refractory exhibited a lowest dissolution extent, and did not cause the appearance of an interaction layer or products, confirming its excellent corrosion resistance. These results provides insights into the process of producing high-entropy alloys using BaZrO 3 refractory. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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