Ti-Cr Nanoparticles Prepared by Electrical Wire Explosion

Abstract

We previously proposed a new method to synthesize nano-sized powders of various alloys and intermetallic compounds. The method consisted of electrical wire explosion of electrodeposted metal wires. In this study, the method was applied for Ti-Cr alloy. The overall composition of the Cr-coated Ti wire was about Ti-25 at% Cr. The explosion products consisted of equilibrium phases of α-Ti and TiCr₂ phases along with meta-stable Ti-rich β phase. The composition of β phase estimated from its lattice parameter was Ti-13 at% Cr. The β phase decomposed completely to α-Ti and TiCr₂ phases during isothermal aging at 600°C for one day.