A Method of Studying Temperature Distribution in Depth of Surface Layers of Rubbing Elements

Abstract

The aim of the study was to develop a new method of recording temperature fields within thin surface layers of friction pairs’ elements. The materials under study were steel, titanium and aluminum alloy as well as silica glass and sapphire. When studying temperature distribution in depth of the bodies in contact the pin-on-disc geometry was used. Testing regimes were as follows: the sliding velocity was varied within 10 – 80 m/s range, the nominal pressure was 0.06 – 0.5 MPa. Experiments were carried out using a setup realizing optical-electron scanning technique and comprising a high-speed friction machine and a system for temperature field recording. The latter consists of an optical-electron transducer, a monitor, a video tape-recorder, an amplifier, a device of image brightness oscillogram forming and a digital storage oscillograph.