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In this study, Cu - 1.5 wt.% Cr - 0.5 wt.% Zr alloy was prepared by powder metallurgy (PM) method. Cu-Cr-Zr powders were pressed under 390 MPa uniaxial compression and sintered at 1000 °C for 2h. After the holding time, samples were immediately taken out of furnace and pressed at 850 MPa. Sintered samples were solution-treated at 1000 °C for 15 min and water-quenched. Then, they were deformed 20 % at room temperature and aged at 450, 475 and 500 °C for 2, 4, 6 and 8 h. SEM investigation revealed that, Cr and Zr particles having limited solubility in the Cu distributed homogeneously in copper matrix. XRD analysis showed that each sample (sintered and aged at 475°C for different times) has same phases: copper and trace Cr2O3. The relative density of sinter-pressed sample increased from 92% to 94% by cold deformation. The highest microhardness value is obtained in sample aged at 450°C for 8 hours and electrical conductivities ranges 84.9 - 87.6 % IACS depending on increase in temperature.
Keywords: Cu-Cr-Zr, powder metallurgy, solution treatment, aging, electrical conductivity© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.