The aim of this paper was to verify changes in mechanical properties and structural characteristic of the 91W6Ni3Co powders mixture after cold swaging, before which the initial powders were pressed using cold isostatic pressing (CIP) and pre-sintered. Swaging was carried out at room temperature in one pass from the initial diameter of 30 mm to the final diameter of 25 mm. The investigation of the sample after pre-sintering and subsequent swaging was performed by microscopic and microhardness analyses, as well as by tensile testing. The results have shown the elongation of tungsten grains to increase with strain. The strength of the material after swaging was more than double comparing to the original state.Keywords: cold swaging, tungsten, microhardness, microstructure, powders
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