| 摘要 |
Tungsten-based alloy material sintered at a high sintering power that may contain additive elements soluble in the nickel and selected from the group constituted, for example, by rhenium, molybdenum, tantalum, niobium, vanadium or a mixture of these, wherein, after sintering in liquid phase at a temperature of around 1500° C., it has: a two-phased alpha-gamma microstructure that is fully densified, has no porosities or has negligible porosities of a low mean grain size (Lalpha) and a contiguity (Calphaalpha) that is very low with respect to the size of the tungsten crystals, and a dispersion of micro-oxides with no loss of ductility properties.
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