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Information × Registration Number 0223U002347, 0119U100656 , R & D reports Title Mechanisms of the formation of elevated mechanical properties, in particular, strength, high-temperature strength, heat-resistance in complexly-alloyed (including high-entropy) alloys with a reduced specific weight popup.stage_title Head Firstov Serhii O., Доктор фізико-математичних наук Registration Date 15-02-2023 Organization Institute of Problems of Materials Science named after IM Frantsevich of the National Academy of Sciences of Ukraine popup.description2 Scientific approaches to the selection of alloy compositions, which contribute to increasing the complex of physical and mechanical properties, are developed taking into account the electronic structure, atomic size factors, distortions of the crystal lattice, the level of interatomic bonding, various modulus of elasticity of the components and first-principle calculations of a number of properties, etc. New high-entropy intermetallics and compounds with record physical and mechanical properties are created. The regularities of the formation of increased high-temperature properties in complex-alloyed titanium alloys and economically alloyed alloys based on titanium aluminides α2Ti3Al/γTiAl are established. The structure and properties of multicomponent BCC alloys in the area of existence of MAX phases are produced and investigated. A number of new polycomponent alloys for high-temperature applications with reduced density and mechanical properties superior to traditional alloys are proposed. The physical principles of preparation of the wrought Al-Zn-Mg-Cu alloys with an optimal composition which are designed for long-term operation at temperatures up to 80 °С, that will contribute to weight reduction of some components of aircraft turbine units have been developed. During the development of cast aluminum alloys based on triple Al-Ge-Mg and four-component Al-Ge-Si-Mg systems, a complex of elements (Cr, Mn, Ti, B, Sc, Zr, Cu, Hf, Ni, Co) was determined. Such alloying provides high strength and ductility at a temperature of 300 °С, which makes these alloys competitive with modern Al casting alloys for operation at elevated temperatures. The content of Zn in foamed alloys of the Al-Zn-Mg system was optimized with simultaneous improvement of the process manufacturability in terms of excessive increase of the dynamic viscosity of the melt during its foaming. Product Description popup.authors Yevych Yan I. Yefimov Mykola O. Avdieieva Valentyna Yu. Adieiev Vadym M. Bilous Olha O. Balkashynova Olena V. Beha Mykola D. Bondar Anatolii A. Botvynovska Tetiana V. Biakova Oleksandra V. Vinova Liubov Ya. Valuiska Kateryna O. Verbylo Dmytro Hr. Vlasov Andrii O. Voblikov Viacheslav M. Voskoboinik Ihor V. Holubenko Oleksii A. Honcharova Iryna V. Honcharuk Viktor A. Horban Viktor F. Horna Iryna D. Hrinkevych Konstiantyn E. Danylenko Mykola I. Domikhina Nataliia V. Zadorozhna Hanna V. Zakarian Dora A. Zakharova Nataliia P. Karpenko Heorhii I. Kytranov Dmytro S. Koval Oleksandr Yu. Korzhova Nataliia P. Kotko Andrii V. Krapyvka Mykola O. Kruhliak Liudmyla O. Kuzmenko Mykola M. Kulak Leonid D. Kuprin Viktor V. Laukhin Petro O. Leplynskyi Volodymyr V. Lysunenko Nataliia O. Luk‘ianov Oleksandr I. Milman Yulii V. Malka Oleksandr M. Melnyk Viktor Kh. Myronov Mykhailo I. Mordovets Nadiia M. Muzyka Oleksii O. Okun Ihor Yu. Polishko Ihor O. Poperenko Tetiana V. Popov Maksym B. Rohul Tamara Hr. Romanko Petro M. Sidorin Hennadii P. Sameliuk Anatolii V. Semenov Mykola V. Tkachenko Ivan V. Khachatrian Aik V. Tsyvilitsyn Vadym Yu. Tsyhanenko Nataliia I. Chuhunova Svitlana I. Shahinian Leonid R. Sharovskyi Andrii O. Shevchenko Olha M. Shkolnyi Valentyn K. popup.nrat_date 2023-02-15 Close