Abstract
ABSTRACTIn this study, Ti15SnxCu alloys were synthesised using an argon-arc melting and casting method. The as-cast alloy ingot was heat-treated for 2 h at 1000°C and then quenched in water to investigate the effects of heat treatment on the microstructure and corrosion behaviour of the Ti15SnxCu alloys. In comparison to the heat-treated Ti15Sn alloy, the average size of cellular grains (dG), the lamellar length (λL), and the lamellar thickness (λT) in heat-treated Ti15Sn2Cu alloy were refined by approximately 36, 30, and 36%, respectively. The corrosion behaviour of heat-treated Ti15SnxCu alloys was made nobler by adding 2 wt-% Cu content. The precipitation of large amounts of nobler (Ti, Sn)2Cu nanoparticles hindered grain growth, improved the UTS, 0.2YS, microhardness and good corrosion resistance.
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