Влияние структуры контртела на характеристики скользящего электроконтакта металлических композитов

Abstract

Comparison of some characteristics of electrocontact at sliding metal composites against steel and copper counterbodies with high (>100 A/cm{2}) contact current density was carried out. It is shown that sliding against steel leads to formation of friction induced structure layer and FeO oxide which interferes with adhesive interaction and promotes realization of satisfactory wear resistance. Sliding against copper counterbody is accompanied by strong adhesive wear in case of inability of composites to create "the third body". The industrial composite forms a transfer layer (i.e. "the third body") on a copper counterbody that considerably reduces wear.