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中文摘要：
研究了合金化元素Y、Zr、Mo对Cu-0.8Cr合金组织和性能的影响。合金试样经950℃、1 h固溶后,冷拉拔至加工变形量为30%,并分别在300、350、400、450、500℃时效处理4 h。结果表明,Zr、Y能够细化合金中的第二相,而Mo可以抑制第二相的析出;合金化元素提高Cu-0.8Cr合金抗拉强度的能力由大到小依次为Zr、Y、Mo,提高软化温度的能力由高到低依次为Zr、Mo、Y。
英文摘要：
Effects of various alloying elements Y, Zr and Mo on microstructure and properties of the Cu-0.8Cr alloy were investigated. All alloy samples were solution-treated at 950 ℃ for 1 h and cold-drawn to a deformation of 30%, and then aged at 300, 350, 400, 450 and 500 ℃ respectively for 4 h. Results show that Zr and Y can refine the second-phase particles in the alloy matrix, and Mo is supposed to inhibit the precipitation of the second-phase particles. The capacity of alloying elements to improve the tensile strength of Cu-0.8Cr alloy in descending order is Zr, Y and Mo, and to increase the softening temperature from high to low is followed by Zr, Mo and Y.
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