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Information × Registration Number 0121U108718, ( 0224U001840  ) R & D request Title Application of the physical plasticity characteristic to study the mechanical behavior of massive materials and coatings in a wide range of temperatures Head Yefimov Mykola O., Кандидат фізико-математичних наук Registration Date 20-02-2021 Organization Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine popup.description1 Creating a scientific approach to the ductility of metal alloys, which is determined by mechanical tests. Develop a method for determining the physical plasticity of materials δ * in depending on the degree of deformation ε in standard mechanical tensile and compressive tests, and also develop a technique for constructing deformation curves δ * = f (ε) in addition to standard curves σ = f (ε). Develop a theory of the influence of structural factors (grain size, dislocation density, dispersion hardening, hardening by substitution elements), temperature and strain rate on physical plasticity δ *. Find the correlation of physical plasticity δ * with elongation to failure δ at standard mechanical tensile test for various groups of metal alloys. Develop the method of determining the mechanical properties (yield strength and ductility) of the surface layers of materials and coatings by hardness. popup.nrat_date 2024-12-09 Close