STUDYING THE CONTACT OF CONSTRUCTIONAL METALS UNDER THE CONDITIONS OF SEIZURE AT ELEVATED TEMPERATURES

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Authors

V.V. IZMAILOV, Dr. Sc., A.F. GUSEV, Cand. Sc., A.A. MITYUREV, Cand. Sc.

Abstract

The conditions for the occurrence of seizure of metal surfaces under static contact and shear are studied. The effect of mechanical load and elevated temperatures on the process of formation of an adhesive joint in a contact has been studied. The description of experimental device and experimental technique is given. Quantitative values of the strength of adhesive joints are obtained and a theoretical analysis of the obtained dependences is carried out. It is shown that the shear of the contacting surfaces affects both the “seizure threshold” and the value of the adhesion coefficient at a given temperature and load. At that the values of temperatures and loads of seizure begining decrease, and the adhesion coefficients increase.

Keywords

metal contact, adhesion, seizure, temperature, contact area, contact electrical resistance.