Effect of WC content on glass formation, thermal stability, and phase evolution of a TiNbCuNiAl alloy synthesized by mechanical alloying
作者： YY Li , C Yang , WP Chen , XQ Li , None
关键词: Amorphous solid 、 Tungsten carbide 、 Particle size 、 Materials science 、 Thermal stability 、 Metallurgy 、 Chemical engineering 、 Powder metallurgy 、 Volume fraction 、 Phase (matter) 、 Alloy
摘要: Amorphous Ti66Nb13Cu8Ni6.8Al6.2 alloy powders with different tungsten carbide (WC) contents were synthesized by mechanical alloying. Outstanding differences in particle size, thermal stability, glass-forming ability, and phase evolution are found for the Ti-based glassy WC contents. This is attributed to fact that was partially alloyed into matrix element Ti also particles. The obtained exhibit a wide supercooled liquid region above 64 K. Meanwhile, main crystalline ductile β-Ti high volume fraction crystallized powders. These two aspects offer possibility of easily preparing plasticity-enhanced bulk composite powder metallurgy, which couples nanosized particles situ precipitated phase.
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