Аннотация
This article considers modern methods of increasing wear resistance and reliability of machine parts using composite materials, especially in the field of powder surfacing and synthesis of metal-matric composites. One of the effective methods is self-propagating high-temperature synthesis (SHS), which allows obtaining composite coatings with improved mechanical and thermal properties. Powder surfacing methods, such as electron beam surfacing (EBF), provide wear-resistant, heat-resistant and hardening coatings on a titanium base. Powders of titanium and its alloys are obtained by reduction of oxides with calcium hydride, which contributes to the formation of materials with high strength and good flowability. Special attention is paid to titanium boride as a strengthening phase for composites. The use of these technologies contributes to a significant increase in the durability and reliability of machines and mechanisms, which leads to resource saving and reduction of operating costs. The studies include the analysis of structural characteristics of the obtained powders and coatings, as well as the determination of their physical and mechanical properties. The variations in these properties as a function of the titanium binder content in the composite powder are analyzed. The description of the microstructure of powders and coatings, as well as the influence of composition on their characteristics, allows us to draw conclusions about the possibility of using these materials to create functional coatings with improved performance characteristics, such as increased wear resistance and heat resistance. The results of the study can be useful for the development of new materials with improved operational properties for use in various industries.