In electric resistance surfacing (ERS), which is one of the types of pressure welding, the strength of bonding of the coating with the parent metal of the component depends greatly on the heating rate and deformation of the filler wire1'2. Therefore, in the development of the reconditioning processes for worn components by these methods, it is necessary to know the temperature in heating and the plastic deformation resistance of the filler metal for specific process conditions. The information available in the scientific and technical literature on the condition of the filler steel at the moment of upsetting the wire is obviously insufficient. In Klimenko1, the authors presented approximate values of the yield limit of the filler metal in surfacing, but the source of origin of these data is not given and the method of determination has not been described. In Dubrovskii3, a method of determination of the plastic deformation resistance and the heating temperature of the filler metal is described. The method is based on the highly simplified model of the thermal strength cycle, presented in the form of a metallic cylinder, heated with a direct current pulse. A number of other assumptions and simplifications, accepted in this study, also greatly distort the actual pattern of the process.
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