Abstract
Cu-10%Nb alloys were solidified with or without electromagnetic stirring. The effect of electromagnetic stirring (EMS) on the distribution of Nb particles in solidified Cu-10%Nb ingots and the performance of its deformed wires were studied. The 300A/16Hz EMS has refined the microstructure of Cu-10%Nb alloy, with smaller phase size and larger amount, and is benefit to the homogenous distribution of Nb-rich phases. The fitted lognormal distribution of Nb phase size in case without or with EMS is compared, and the EMS case has the higher frequency percentage in the range of smaller size for both the solidified ingot and the deformed wire. Cu-10%Nb wires in EMS case have a less value of electrical conductivity and a considerably higher ultimate tensile strength compared with that without EMS.
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