导轨材料抗电弧烧蚀性能  

Arc Ablation Properties of Guideway Materials

作　　者：谭本立 范新会[1,2] 刘杰 王鑫[1] 李炳[1] 杨珂[1] TAN Ben-li;FAN Xin-hui;LIU Jie;WANG Xin;LI Bing;YANG Ke(School of Materials and Chemical Engineering,Xi'an Polytechnic University,Xi'an 710021,Shaanxi,China;Shangluo University,Shangluo 726000,Shaanxi,China)

机构地区：[1]西安工业大学材料与化工学院,陕西西安710021 [2]商洛学院,陕西商洛726000

出　　处：《铸造》2022年第9期1105-1110,共6页Foundry

摘　　要：采用真空感应熔炼铸造的方法制备Cu-0.7Cr-0.12Zr基体材料,用真空自耗熔炼的方法制备Cu-0.7Cr-0.12Zr-0.1Ag-0.12Nb-1SiC-0.5Gr(石墨)-2W导轨用复合材料,在自制的电弧烧蚀装置上分别测试两种材料的烧蚀率,观察了它们的烧蚀特征,对比分析材料在不同烧蚀次数、不同面电流密度下烧蚀率和烧蚀形貌的变化。结果表明,随着烧蚀次数和电流密度的增加,两种材料的烧蚀面积逐渐增大,烧蚀率先升高后降低。基体材料和复合材料的烧蚀率差距逐渐减小,从4.2∶1减小到1.8∶1。Cu-0.7Cr-0.12Zr base material was prepared by vacuum induction melting and casting, and Cu-0.7Cr-0.12Zr-0.1Ag-0.12Nb-1SiC-0.5Gr(graphite)-2W composite material used for guideway was prepared by vacuum arc remelting, and the ablation rates of these two materials were tested on a self-made arc ablation device,observing the ablation characteristics, and comparing and analyzing the changes in the ablation rates and the ablation morphologies of the materials under the conditions of different current densities and ablation times. The results show that with the increase of ablation times and current density, the ablation areas of the two materials gradually increase, and the ablation firstly increases and then decreases. The ablation rate gap between the matrix material and the composite material gradually decreased, from 4.2∶1 to 1.8∶1.

关 键 词：导轨 电流密度 烧蚀率 烧蚀形貌 

分 类 号：TB331[一般工业技术—材料科学与工程]