Abstract
The effects of rare earth elements (Y2O3, Y and La) on the consolidation behavior, microstructure and mechanical properties of tungsten alloys were investigated in this work. The starting powders were mechanical alloyed (MA) and then consolidated by spark plasma sintering (SPS). It was found that Y doping was beneficial to obtain fully dense tungsten alloys with more refined grains as compared to any other rare earth elements. The maximum values of Vickers microhardness and bending strength obtained from W–0.5wt.% Y alloy reached up to 614.4HV0.2 and 701.0MPa, respectively.
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