Abstract

Results of investigation of the microstructural peculiarities and regularities of niobium hardening after combined deformation treatment including mechanical activation of the powder in a planetary ball mill and subsequent consolidation by torsion under pressure in Bridgman anvils are presented. The quantitative parameters of grain and defect structure of the examined material are determined in different deformation stages. The main factors determining the specifics of niobium hardening for the considered deformation treatment are discussed.

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