Kolenov I. Influence of equal-channel angular pressing and quasihydroextrusion on distribution of secondary phases inclusions in precipitation-hardened Cu-Cr-Zr

Object: structure and mechanical properties of precipitation-hardened alloy of Cu-Cr-Zr. The purpose: determination the effect of equal-channel angular pressing and quasihydroextrusion on the distribution of secondary phases' inclusions in precipitation-hardened alloy Cu-Cr-Zr. Methods: equal-channel angular pressing, quasihydroextrusion, ion sputtering of surface, scanning electron microscopy with energy x-ray spectroscopy, interferometry, polarization microscopy, microhardness measurements, multiangular ellipsometry, spectral ellipsometry and reflectometry, terahertz ellipsometry. Results: mechanisms of the distribution of precipitates in the precipitation-hardened alloy of system Cu-Cr-Zr during equal-channel angular pressing and quasihydroextrusion is determined. Application of quasihydroextrusion after equal-channel angular pressing at different temperatures made it possible to obtain record levels of microhardness (2100-2300 MPa) for precipitation-hardened alloy of system Cu-Cr-Zr. Decrease in the coefficient of dispersion after quasihydroextrusion is observed. Field of application: solid state physics, physics of strength and plasticity metallophysics