电弧作用下纤维结构钨铜触头材料的形貌特征

Surface Characterization of Fiber-structured W-Cu Contact Materials under the Stress of Electrical Arc

根据触头材料电弧侵蚀后材料表面的微观分析,发现触头表面电弧侵蚀形貌呈现出熔滴、孔洞、蚀坑的特征,并且钨丝丝径越大铜含量越高,材料侵蚀的越严重。

According to the microanalysis of the contact materials after arc eroson, arc erosion morphology features is found. That is molten droplets, void and erosion pit. And the greater diameter of tungsten and content of Cu is, the bader is its erosion.