The chemical composition and microstructure of Ti-47AI-2W-0.5Si alloy melted in ceramic crucibles

摘要

In this paper, the technology of melting in induction furnaces with ceramic crucibles was used for production of TiAI-based Ti-47A1-2W-0.5Si alloy. Due to high reactivity of liquid titanium alloys, the melting process was conducted in special crucibles made of stabilised ceramic materials resistant to the aggressive action of these alloys. When characterising the chemical composition and microstructure of Ti-47Al-2W-0.5Si alloy melted in different ceramic crucibles, problems accompanying the melting process were described and conditions for making an alloy with satisfactory purity were determined.