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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.

参考文献

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