A new approach to the creation of composite wear-resistant coatings is proposed, which consists in realizing the advantages of combining the effect of mechanical nanocrystallization and mechanochemical reactions in the near-surface layers treated with ultrasonic impact treatment (UIT) in chemically active and inert media. This fundamentally distinguishes the proposed technique from the known methods of synthesis of bulk composite materials and provides more effective, compared to heat treatment and standard UIT schemes, surface hardening.
Main goal in the development of technological process and the design of experimental equipment for its realization was to improve the exploitation properties of parts. It is possible to pattern required micro-relief on flexible thin-walled workpieces and, with help of additional ultra-sonic processing, on rigid bulk parts. Данная технология позволяет создавать требуемый микрорельеф на не жестких тонкостенных деталях или его формирование (для жестких деталей) с помощью дополнительной выглаживающей УЗ-обработки
Developed environmentally efficient and resource-saving technology for producing and finishing fundamentally new wear-resistant composite parts for use in nodes of post-printing equipment based on the grinding of waste aluminum alloys - silumins with solid lubricant (or without) allows to manufacture new parts that wear resistance significantly exceed the known parts which operatt in similar conditions. Developed technology is based on the use of powder metallurgy processing steps in combination with precision machining of the friction parts’ working surfaces.
Showing an increase tribotechnical characteristics of titanium alloys in terms of friction without lubrication, abrasion wear, heat resistance, corrosion resistance the surface after diffusion saturation with nitrogen, carbon, oxygen, chromium, aluminum.
The possibility of intensification of diffusion saturation by introducing into the reaction space activators and activation of surfaces prior Magneto-abrasive treatment that is saturated. This reduces the saturation temperature of titanium and its alloys to 550-900 0C saturation and reduce time to 2-3 hours.
Physical principles of micro- and nanostructured states in surface layers were determined.