研究了拉拔变形程度和电磁搅拌对Cu-6%Ag合金组织、铜枝晶取向、抗拉强度和电导率的影响。结果表明: 随着拉拔变形程度的增加, 有、无电磁搅拌合金纤维状第二相的直径和间距不断减小, 但合金的抗拉强度均增加, 电导率均较铸态的有所下降; 有电磁搅拌铸态合金的铜枝晶无取向, 拉拔变形使铜枝晶的〈111〉取向增强; 虽然有电磁搅拌合金中的纤维状第二相的直径和间距较无电磁搅拌合金的大, 但其综合性能(强度和电导率)更优; 电磁搅拌对拉拔变形后合金的抗拉强度影响不大, 但却使电导率明显升高。

The effects of drawing deformation and electic magnetic stirring (EMS) on microstructure, Cu dendrite orientation, tensile strength and electrical conductivity of Cu-6%Ag alloy were studied. The results show that diameter and spacing of the fibroid second phase in the alloys with and without EMS decreased with the increase of drawing deformation, and their tensile strength increased and their electrical conductivity was less than the casted alloy′s. The casted alloy with EMS had no Cu dendrite orientation, and drawing made 〈111〉 direction increasing. The diameter and spacing of the fibroid second phase in the alloy with EMS was larger than that in the alloy without EMS, but its combination properties of tensile strength and electrical conductivity were better. EMS had little effects on tensile strength of drawn alloy wire, but could made its electrical conductivity increasing.