Arc Erosion Behavior of Cu-0.23Be-0.84Co Alloy after Heat Treatment: An Experimental Study

Yanjun Zhou, Kexing Song, Jiandong Xing, Zhou Li, Xiuhua Guo

Fig. 8 Arc erosion model of Cu-0.23Be-0.84Co alloy in make-and-break contact: a the high-speed movement of metal ions and electrons, and intense collision with cathode and anode in discharge channel; b the melting and gasification of contact material, formation of molten pool and spraying of molten droplets; c the solidification of metal, deposition of molten droplets and formation of discrete erosion pits, molten droplet, porosity and cavity, microcracks, etc. on contact surfaces