Article ID Journal Published Year Pages File Type
1600179 Intermetallics 2014 5 Pages PDF
Abstract

•A new, refractory W–Ni–B metallic glass is developed.•Exceptionally wear-resistant alloy.•Very high resilience, suggesting applications in MEMS.•Much cheaper than other W-based metallic glasses.

An attempt has been made to develop a new metallic glass (MG) that combines high hardness with wear resistance. Refractory metallic films of W33Ni32B35 (at.%) have been deposited on stainless steel and Si substrates by dc magnetron sputtering. The alloy films are glassy, have a high crystallization temperature of 873 °C and rank among the very hard metallic materials (∼24 GPa). Importantly, this MG also shows excellent wear resistance, approaching that of standard tribological materials like TiN and hence it represents one of the most wear-resistant known metallic materials. Based on its unique combination of high strength and low elastic modulus, other potential applications are also discussed.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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