The Effects of Rare Earth Element on the Al-Ti-B Master Alloy Second Phase

Hua Hu; Zhi Liu Hu; Liang Jie Wei; Jian Bao Yin

doi:10.4028/www.scientific.net/AMM.574.380

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 574The Effects of Rare Earth Element on the Al-Ti-B...

The Effects of Rare Earth Element on the Al-Ti-B Master Alloy Second Phase

Abstract:

Al-Ti-B-RE master alloy is an efficient long-term new refiner. Al-Ti-B-RE refiner was prepared by Al-Ti-B master alloy doped with LaF₃, La-rich RE carbonate and Ce respectively. This paper studies the effect of different type and mass fraction of RE on the Second Phase Particles distributions and shape in Master Alloys. The addition of RE have a certain effect of refining TiAl₃ and TiB₂ intermediate phase. Moreover, it prevents aggregation of TiB₂ intermediate phase. As the different type and addition of RE has an effect on the microstructure of master alloy, then the reasonable addition of RE is put forward.

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Periodical:

Applied Mechanics and Materials (Volume 574)

Pages:

380-385

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.574.380

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Online since:

July 2014

Authors:

Hua Hu*, Zhi Liu Hu, Liang Jie Wei, Jian Bao Yin

Keywords:

Al-Ti-B Master Alloy, Microstructure, Re, Second Phase Particles

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References

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