Temperature Effect of Refining Performance by Al-Ti-B (C) Master Alloys

Cong Juan Gao; Hai Min Ding; Xiangfa Liu

doi:10.4028/www.scientific.net/AMR.306-307.475

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 306-307Temperature Effect of Refining Performance by...

Temperature Effect of Refining Performance by Al-Ti-B (C) Master Alloys

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 TiAl₃layers are the heterogeneous nucleating cores of α-Al at low temperature. However, TiB₂particles are the heterogeneous nuclei of α-Al at high temperature.

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Advanced Materials Research (Volumes 306-307)

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475-480

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.306-307.475

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Online since:

August 2011

Authors:

Cong Juan Gao, Hai Min Ding, Xiangfa Liu

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Al-5Ti-0.4C, Al-5Ti-1B, Commercial Pure Aluminum, Refining Mechanism

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