THERMODYNAMIC ANALYSIS OF FRICTION AND WEAR OF ULTRAFINE- GRAINED MATERIALS
- 1 Ufa State Aviation Technical University, Ufa, Russia
- 2 Ufa State Aviation Technical University, Ufa, Russia. Institute of Oil and Gas Technologies and NovelMaterials, Ufa, Russia
- 3 National Taiwan University of Science and Technology, Taipei, Taiwan
Abstract
The conditions are substantiated for the loss of thermodynamic stability of a tribosystem and for its adaptation with a decreasing wear rate at the moving frictional contact of parts from materials with an ultrafine-grained structure produced by equal-channel angular pressing. The regularities of the influence of the structure’s dispersion degree and the friction contact’s temperature on the tribotechnical characteristics of ultrafine-grained materials are established theoretically and experimentally.