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Information × Registration Number 0223U005075, 0123U103378 , R & D reports Title Durability Enhancement of Aircraft Metal Materials: Formation of Structural-Phase States and Physical-Mechanical Properties as Affected by the Solid-Solution, Dispersion and Work Hardenings, and Surface Finishing popup.stage_title Head Mordiuk Bohdan M., д.ф.-м.н. Registration Date 13-12-2023 Organization Institute of Metal Physics. G.V. Kurdyumov of the National Academy of Sciences of Ukraine popup.description2 Report (interim) on the scientific research work: 49 pages, 19 figures, 3 tables, 20 refs. The objects of research are samples of aviation alloys based on nickel (3D-printed Inconel 718, EI-689) and aluminum (АА6013, АА6063), in particular Ni–Al (Al–Mg), (super)structures of the L12 type (with stoichiometries Ni3Al or Al3Ni), L10 (Ni2Al2 stoichiometry) and B2 (NiAl). The purpose of the work is to investigate the surface morphology, microstructure, phase composition, strengthening mechanisms, elastic and mechanical properties of aviation alloys based on Ni (Al) after thermomechanical processing and deformation modification of the surface. To build statistical and thermodynamic models of ordered (super)structures based on Ni (Al): L12, L10, B2. Statistical thermodynamic models of ordered (super)structures on the basis of Ni (Al) were constructed. Possible types of (super)structures in Ni–Al are predicted through the obtained expressions for the distribution functions of Ni (Al) atoms on the nodes of FCC and BCC lattices. A model sample was developed and the deformation of an FCC lattice of Ni with a spherical inclusion under tension/ As shown by the molecular dynamic simulations, the deformation forms complexes of point defects, Shockley dislocations, and packing defects. Changes in the surface morphology of the parts in the 3D printed state and after mechanical processing and electro-spark cutting were studied. As established, the most effective modes are shot-peening and ultrasonic (high-frequency) impact treatments, which lead to a reduction in roughness, porosity and strain hardening of the surface layers, which contribute to corrosion resistance. Experimental data on the critical points of separation of the second phases, the structural phase state, and the mechanical properties of Ni (Al) alloys after thermomechanical processing. The methodology of ultrasonic measurements for the analysis of texture and main mechanical characteristics was developed. Product Description popup.authors Galkina Anastasia A. Gatsenko Oleksandr S Danyleiko Oleksandr O Zagorulko Iryna V. Zakiev Vadim I. Zaporozhets Oleh Ivanovych Lesyk Dmytro A. Mykhaylovsʹkyy Vladyslav А. Molebnyy Oleh Anatoliyovych Monastyrs`ka Tetyana Oleksandrivna Naumuk Artem Yu. Radchenko Taras M. Tatarenko Valentyn А. Tyshchenko Andriy I Khripta Nataliia I. Shyvaniuk Vladyslav M. popup.nrat_date 2023-12-13 Close