Cu-Ti alloy ingots were firstly prepared by the induction melting furnace at an argon atmosphere, and CuTiW alloys were fabricated by Cu-Ti alloys infiltrating W skeletons. The effects of Ti contents on the microstructure and properties of CuW alloys were studied. The results show that Ti element can diffuse into W skeletons during infiltration, and the Cu/W interface achieves a good metallurgical bonding. The electric conductivity and hardness of CuTiW alloys is improved after the solution and aging treatment due to the Cu₃Ti particles precipitated in Cu matrix. The resistance to arc erosion is improved by the addition of Ti, the arc erosion area is increased and the erosion craters are dispersed effectively, and the breakdown pits hardly appear at the Cu/W interface. Compared with CuW alloy, the Cu-1.5 wt%TiW alloy exhibits the excellent electrical breakdown properties, the breakdown strength is increased by 54%, the chopping current is decreased by 19.3%, and the arc life-span is increased by 46.2%, respectively.

首先在氩气气氛下通过感应熔化炉制备Cu-Ti合金锭，然后通过渗入W骨架的Cu-Ti合金制备CuTiW合金。研究了Ti含量对CuW合金组织和性能的影响。结果表明，Ti元素可以在渗透过程中扩散到W骨架中，并且Cu / W界面实现了良好的冶金结合。经过固溶和时效处理后，由于Cu _3的存在，提高了CuTiW合金的电导率和硬度Ti颗粒在Cu基体中沉淀。通过添加Ti提高了耐电弧腐蚀的能力，增加了电弧腐蚀的面积，有效地分散了腐蚀坑，并且在Cu / W界面几乎不出现击穿点。与CuW合金相比，Cu-1.5 wt％TiW合金具有优异的电击穿性能，击穿强度提高了54％，斩波电流降低了19.3％，电弧寿命提高了46.2％，分别。