Laboratory of Laser and Plasma Processing

1. Development of new surface treatment methods to improve wear resistance and corrosion resistance: Laser hardening: Research is aimed at optimizing the parameters of laser hardening (power, scanning speed, beam overlap, etc.) of various structural materials (steels, titanium alloys, aluminum alloys, etc.) to achieve maximum hardness, wear resistance and corrosion resistance of the surface layer. Plasma nitriding and carburization: Study of the effect of plasma treatment on the diffusion of nitrogen or carbon into the surface layer of a metal, which leads to the formation of solid nitrides and carbides that increase wear resistance and fatigue strength. Laser surfacing and plasma spraying of protective coatings: Development of technologies for applying protective coatings (ceramic, metal, composite) using laser surfacing or plasma spraying. The research is aimed at improving the adhesion of the coating to the substrate, reducing porosity and increasing the wear resistance, heat resistance and corrosion resistance of the coating. Laser beam surface modification: The study of techniques where a laser beam is used to change the surface structure of a material, for example, to create a textured surface to improve wettability or reduce friction. 2. Development of new additive technologies based on laser and plasma methods: Selective laser melting (SLM) and direct laser growth (DED): Research is aimed at optimizing SLM and DED parameters to create complex parts from metal powders (steels, titanium alloys, aluminum alloys, etc.) with specified mechanical properties and microstructure. Development of new materials for additive manufacturing: Creation of new composite materials (for example, metal ceramics) specially designed for additive manufacturing in order to expand the possibilities of obtaining parts with unique properties. Investigation of the effect of printing parameters on the microstructure and properties of parts obtained by SLM and DED: Study of the effect of laser power, scanning speed, scanning strategy and other parameters on the microstructure (grain size, defects, etc.) and mechanical properties (strength, ductility, fatigue, etc.) of parts obtained by SLM and DED. 3. Study of fundamental aspects of the interaction of laser and plasma radiation with materials: Modeling of thermal processes in laser and plasma processing: Development of mathematical models for describing thermal processes in laser and plasma processing, which makes it possible to optimize processing parameters and predict the properties of the resulting materials. Investigation of the mechanisms of microstructure formation during laser and plasma processing: Study of the processes of crystallization, phase transformations and diffusion occurring during laser and plasma processing in order to understand how they affect the microstructure and properties of materials. Development of in-situ diagnostic methods for laser and plasma treatment: Development of methods for monitoring processes occurring during laser and plasma treatment (for example, surface temperature measurement, plasma composition analysis, etc.), which allows monitoring and control of the process in real time. 4. Development of methods for joining materials using laser and plasma welding: Laser and plasma welding of various materials: Research is aimed at optimizing the parameters of laser and plasma welding of various materials (steels, titanium alloys, aluminum alloys, etc.) to achieve high strength of the welded joint and a minimum zone of thermal influence. Investigation of the effect of welding parameters on the microstructure and properties of welded joints: Study of the effect of laser or plasma power, welding speed, protective gas composition and other parameters on the microstructure and mechanical properties of the welded joint. Development of methods for reducing residual stresses in welded joints: Study of methods for reducing residual stresses in welded joints, which increases their fatigue strength and resistance to corrosion cracking.