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pISSN : 1598-706X / eISSN : 2288-8381


(논문)연구논문

한국주조공학회지 (30권4호 147-150)

Eco-friendly Fabrication Process of Al-Ti-C Grain Refiner

Eco-friendly Fabrication Process of Al-Ti-C Grain Refiner

Hoon Cho, Bonghwan Kim

Korea Institute of Industrial Technology

Abstract

An eco-friendly production technique of Al-8.6Ti-0.025C refiner was developed by melting a Al-Ti master alloy in a graphite crucible, in which the potential nucleation site, TiC effectively formed by the spontaneous in-situ reaction between excessive Ti and carbon from graphite crucible. The A3003 alloy refined by the Al-8.6Ti-0.025C showed effectively refined macrostructure and enhanced mechanical properties comparable to the commercial Al-Ti-B refiner. The effective refinement was achieved in a shorter compare to the melt-treating time commercial Al-Ti-B refiner.

Keywords

Grain refinement, Fadingless, Eco-friendly, TiAl3, TiC.