By metallographic test, SEM, TEM and energy spectrum, the microstructure and properties of Cu 15Ni 8Sn 0.4Si alloy were studied. The results show that the added Si combines with Ni and forms Ni 3Si and Ni 2Si phases. ...By metallographic test, SEM, TEM and energy spectrum, the microstructure and properties of Cu 15Ni 8Sn 0.4Si alloy were studied. The results show that the added Si combines with Ni and forms Ni 3Si and Ni 2Si phases. During ageing at 380 ℃, the precipitation of Ni 2Si phase suppresses discontinuous precipitation to some degree. After adding Si, the conductivity and hardness of Cu 15Ni 8Sn alloy are increased to some degree.展开更多
文摘By metallographic test, SEM, TEM and energy spectrum, the microstructure and properties of Cu 15Ni 8Sn 0.4Si alloy were studied. The results show that the added Si combines with Ni and forms Ni 3Si and Ni 2Si phases. During ageing at 380 ℃, the precipitation of Ni 2Si phase suppresses discontinuous precipitation to some degree. After adding Si, the conductivity and hardness of Cu 15Ni 8Sn alloy are increased to some degree.
