1. Temperature Effect of Refining Performance by Al-Ti-B (C) Master Alloys
- Author
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Cong Juan Gao, Xiang Fa Liu, and Hai Min Ding
- Subjects
Materials science ,Alloy ,Metallurgy ,General Engineering ,engineering ,engineering.material ,Refining (metallurgy) - Abstract
Refining performance and mechanism of Al-5Ti-1B and Al-5Ti-0.4C master alloys at different temperature were investigated in this paper. The experimental results show that the refining effect of Al-5Ti-0.4C master alloy becomes worse as temperature increasing from 750°C to 1200°C, The refining effect of Al-5Ti-1B master alloy becomes worse as temperature increasing from 750°C to 1000°C. However, when the temperature is above 1000°C, the refining effect of Al-5Ti-1B master alloy recovers gradually as temperature increasing. TiB2 particles with TiAl3 layers are the heterogeneous nucleating cores of α-Al at low temperature. However, TiB2 particles are the heterogeneous nuclei of α-Al at high temperature.
- Published
- 2011
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