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Remelting of aluminium with the addition of AlTi5B1 and AlTi3C0,15 grain refiners

Authors
Publisher
Croatian Metallurgical Society (CMS)
Publication Date
Keywords
  • Aluminij
  • Lijevanje
  • Skrućivanje
  • Smanjivanje Zrna
  • Aluminium
  • Casting
  • Solidification
  • Grain Refinement

Abstract

It was found that concentration of boron in aluminium with the addition of AlTi5B1 grain refiner is decreasing during remelting as a consequence of TiB2 particles settling down due to gravity. TiB2 particles remained in aluminium after four remelts shows lower effect of grain refinement compared to non-remelted samples with the same TiB2 content. It was also found that TiC particles are still present in aluminium with the addition of AlTi3C0,15 grain refiner after four remelts and they probably participate in nucleation of α-Al grains.

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