Glass-forming ability correlated with the liquid-liquid transition in Pd42.5Ni42.5P15 alloy

Abstract Alloy melts can solidify into metallic glasses if cooled fast enough to avoid crystallization. Glass-forming ability (GFA), a measure of the ease vitrification, is vital for fundamental understanding glass formation, and also crucial application glasses. Previous studies GFA mainly focused on undercooled liquid phase, while influence evolution stable rarely addressed. Here we show that Pd42.5Ni42.5P15 glass-forming liquid, in which first-order liquid-liquid transition (LLT) takes place at TLL = 1063 K high above its liquidus temperature, shows significantly different when quenched from temperature or below TLL. Moreover, pathway kinetics crystallization melt are strongly related LLT. Our work provides new insights vitrification process crystallization, contributes designing more