The Cu-0.92Cr alloy was prepared by thermal deformation-solid solution-thermal deformation-cold deformation-aging treatment.The hardness and electric conductivity of the Cu-0.92Cr alloy have been examined

and microstructure of the alloy with aging at 420 ℃ for 6h was observed to understand effects of aging process on microstructure and properties of Cu-0.92Cr alloy after thermal deformation.The results reveal that with increasing in aging temperature and time

hardness of the alloy is gradually decreased and electric conductivity is increased.The hardness and electric conductivity of the alloy with aging at 420℃ for 6h reach up to 130.3HB and 52.49MS/m

respectively.The Cu-0.92Cr alloy is characterized by uniform distribution of precipitates in Cu matrix.The precipitates are found to have the f.c.c structure with the lattice parameter of 0.424nm

and particle size is approximately 4～15nm with grain spacing approximately 10～30nm.