1. Effect of (Ti + V)B2on the Grain Structure of Al–7Si Alloy
- Author
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Ruan, Qilin, Meng, Chuanchao, Xie, Zonghua, Tao, Zushan, Wu, Jianqiang, Peng, Yuchen, Tang, Hongqun, and Chen, Ping
- Abstract
A new refiner containing (Ti + V)B2phase was prepared in this study. It consists of a special VB2–TiB2core–shell structure, and the size of most (Ti + V)B2granular phase is between 100 and 500 nm. Considering Al–7Si alloy as the research object, the refining ability of Al–Ti–B, Al–V–B, and Al–(Ti + V)–B was compared under the condition of same content of added B. The grain refiner containing (Ti + V)B2can significantly reduce the grain size of Al–7Si. Al–(Ti + V)–B refines the as-cast grain size from 854.6 ± 28 to 136.93 ± 2.45 μm, which is better than the results obtained for Al–Ti–B- and Al–V–B-based refiners.
- Published
- 2023
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