DENSIFICATION MECHANISMS AND MECHANICAL-P ROPERTIES OF W-ALLOY IN ACCORDANCE WITH THE SINTERED TEMPERATURE

The various sintering mechanisms of a W97NiFeCo alloy are correlated t o its microstructure and to several mechanical properties. The sinteri ng mechanisms are determined by isotherm dilatometry in the area of te mperature preceding the appearance of the liquid phase. The MET observ ations reveal the presence of a NiFeCoW phase confirmed by the diffrac tion of X-rays. The mechanical properties are higher for samples sinte red beyond 1400-degrees-C.