Various operating conditions of electric contacts call for new materials that would combine a number of properties: high melting-point and hardness, high thermal and electric condition along with high erosion and low electric resistance. The method of electron-beam facing was used to produce such electric contacts and it appeared to be very promising. Advantages of the method over the conventional procedures of powder metallutgy are dispersal of the Cr particles and degassing of the material during facing. Another feature is the possibility of depositing powder materials on electric contacts of varying geometry. In this experiment a coating of Cu -50% Cr deposited by the electronbeam facing is investigated. Metallographic analysis of the coatings has revealed a matrix-type structure with a uniformly distributed solid phase and porosity less than 0.5%.
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