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The textbook presents the main theoretical provisions of the problems and prospects of the development of the science of friction, lubrication and wear in machines (tribology), the basic concepts of the structure and properties of surface layers, as well as the phenomena that occur in the process of friction and lubrication in tribosystems. Experimental and analytical laws of friction and wear are presented. The areas of normal and pathological phenomena in friction are defined. The rational design, technological and operational measures to improve the reliability and wear resistance of friction unit parts are indicated. The main methods of restoration of worn parts are determined. The role of nanomaterials and nanotechnologies in increasing the wear resistance of vehicle parts and mechanisms is shown.

Intended for students of higher education institutions studying in the field of study 70106 "Transport and Transport Infrastructure" and for speciality 8.05130104 "Chemical Technologies of Refractory and Silicate Materials" specialisation - "Modern Nanotechnologies and Nanomaterials". It can be recommended for students of other specialities.