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一、绪言Cr—Zr—Cu(包括 Cr—Zr—Mg、Cr—Zr—V 系)三元合金是六十年代后在 Cr—Cu、Zr—Cu 二元合金的基础上,通过筛选发现的。这种合金的耐热性能优良,强度及导电率高,而且可以承受冷热变形加工,有较好的切削性及可焊性、无氧,有一定的抗蚀能力等,使它非常引人注目和有着广阔的潜在前途。例如,黑色金属压铸或连续铸造模具、电阻焊的电极、电真空器件、通信电缆等。虽然 Cr—Zr—Cu 三元合金的铜角相图苏联最早公布。并在一九七三年推荐0.5/0.8Cr—0.2/0.5Zr-0.2/0.6V 耐热、高强、高导铜合金作黑色金属压铸模具材料,但就公布的资料看,还是日本的研究
I. INTRODUCTION Cr-Zr-Cu (including Cr-Zr-Mg and Cr-Zr-V series) ternary alloys were found on the basis of Cr-Cu and Zr-Cu binary alloys after the 1960s . This alloy has excellent heat resistance, high strength and electrical conductivity, and can withstand hot and cold deformation, better machinability and solderability, no oxygen, a certain degree of corrosion resistance, making it very attractive Attention and has a vast potential future. For example, ferrous metal die-casting or continuous casting mold, resistance welding electrodes, electrical vacuum devices, communications cables. Although the Cr-Zr-Cu ternary alloy copper horn phase the Soviet Union announced the earliest. And in 1973 recommended 0.5 / 0.8Cr-0.2 / 0.5Zr-0.2 / 0.6V heat-resistant, high strength, high conductivity copper alloy for black metal die-casting mold material, but the published data, or Japan’s research