Abstract
A tungsten-based ductile metallic glass with the composition W46Ru37B17 was produced by a single-roller melt-spinning procedure. The differential scanning calorimetry measurement showed a two-step crystallization with the first crystallization temperature as high as 1174 K. Young’s modulus of the glass at room temperature was estimated to be 309±20 GPa by a nanoindentation test and the Vickers hardness at room temperature was 16.8±1 GPa. These values are higher than those of any metallic glasses so far reported. High-temperature Vickers hardness test indicated that the hardness value is higher than 10 GPa up to 900 K.
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