METHOD OF DEFORMING SINTERED POROUS BLANKS OF W-Re ALLOY

摘要

FIELD: powder metallurgy. SUBSTANCE: method comprises steps of multiple rolling of blanks in a system of grooved pass in the form of "oval-ribbed oval"; performing rolling process in first grooved pass with an elongation factor, equal to 1.05-1.2; performing subsequent annealing by stepped fashion in a protective medium at first at temperature, equal to 0.45-0.5 of temperature value of the alloy melting, over 20-30 min and then at temperature, equal to 0.8-0.9 of the melting temperature, over 20-30 min, further rolling with annealing of blanks before each pass in the protective medium and finally annealing blanks in the protective medium after rolling in the ribbed-oval grooved pass. EFFECT: increased yielding at deformation of porous blanks of tungsten-rhenium alloys. 1 cl, 1 tbl