Comparative analysis of methods for studying the adhesion of antifriction coatings for automotive friction units

A study of the adhesion strength of the adhesion of thin solid antifriction coatings is presented. A brief analysis of the existing methods for determining the adhesive strength of thin antifriction coatings is carried out. The technique is described and experiments are carried out using a universal tensile testing machine with an IR5047-50 electronic force-measuring device and a portable adhesion meter of the «Константа А» model. A number of quantitative estimates of the adhesion strength of the antifriction coating to the base have been obtained. Conclusions are drawn about the adhesion strength of the coating and the methods for determining its adhesion. Recommendations are given on the application of methods for determining the adhesive strength of thin hard antifriction coatings.