Utveckling av de nya diffusion slösningarna i legeringar
- Diarienummer
- UKR22-0070
- Projektledare
- Bobyr, Serhii
- Start- och slutdatum
- 220901-231231
- Beviljat belopp
- 1 250 000 kr
- Förvaltande organisation
- KTH - Royal Institute of Technology
- Forskningsområde
- Materialvetenskap och materialteknologier
Summary
In the project will be developed new theoretical models of the diffusion process in solids on different physical levels – quantum mechanical, statistical, non-equilibrium thermodynamical. Developed variational principles of non-equilibrium thermodynamics will be used for finding the solutions of kinetic diffusion equations in multicomponent systems (metals and alloys). Developed a new models of solid-phase transformations and applied to the management of the structure formation of advanced alloys and optimization of their heat treatment. Identifying the conditions of formation of nanoparticles and retained austenite in advanced alloys and possibilities of their transformation. The goal of the project is the development of new models of diffusion process and solid-phase transformations in solids with the development of the variational principles of non-equilibrium thermodynamics and their application to the solution of practical problems of Metal Physics and Materials science.
Populärvetenskaplig beskrivning
In the proposed project, will be to solve an ambitious multi-dimensional problem: to expand the understanding of diffusion in solids as a quantum-mechanical and statistical process; to develop the variational principles of non-equilibrium thermodynamics and apply them to finding the kinetic diffusion equations in multicomponent systems (metals and steels); based on the obtained equations, to perform modeling of the structure of advanced alloys and optimization of their composition and heat treatment; to formulate conditions of formation for nanoparticles and retained austenite in some of the advanced alloys and possibilities of their transformation. The Project’s contribution A. The project will develop new methods for calculating the diffusion parameters of these elements in metals and alloys as complex systems, including the mutual influence of alloying elements and applied to calculate the parameters in advanced alloys. The impacts of project include, but not limited, the new scientific knowledge in Materials Science regarding the formation and transformations of retained austenite and nanoparticle in alloy steels, rational schedules of heat treatment of advanced alloys for heavy-duty industrial machines will be established and their durability will be increased. Young researchers involved in the project will gain valuable skills in Metal Physics and Materials science, especially in the field of calculations of diffusion processes and phase transformations in advanced alloys, which is important both theoretically and practically. B. The research results will be open-access publications in reputable international journals and via participation in international conferences. C. The project results will establish a novel diffusion solutions in metals and steels and offer new physical and computational models of phase-structure transformation in advanced alloys.