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A study of microstructure and properties of Cu-Ni-Sn alloy when deformation and aging

In this paper, the results about the structural and mechanical properties of Cu-Ni-Sn alloy under deformation and heat treatment are presented. By analytical methods XRD have determined the appearance of spinodal clusters in the microstructure of the alloy. By XRD analysis, it was shown that the difference in crystal structure parameters of the alloys studied after deformation and heat treatment. The deviation corresponding to some crystal structure parameters is consistent with the theory of spinodal decomposition in alloys. The change in the structure of the alloy leads to a change in the alloy's mechanical properties: the alloy's elastic limit reaches 1097.5MPa; elongation of the alloy is 14%. After thermal-mechanical treatment the alloy's hardness reaches 40HRC.