Search academic texts

Information × Registration Number 0222U003197, 0119U100478 , R & D reports Title Optimization of technology and structural parameters of heterogeneous materials using the complex of acoustic analytical methods adapted to the material structure popup.stage_title Head Bezymiannyi Yurii H., Доктор технічних наукLuhovskyi Yurii F., Доктор технічних наук Registration Date 21-02-2022 Organization Institute of Problems of Materials Science named after IM Frantsevich of the National Academy of Sciences of Ukraine popup.description2 The object of research is multiphase powder and compo-site materials. The purpose of the work is substantiation, development and practical application of scientific bases of a qualita-tively new level of use of acoustic fields for optimiza-tion of technology of creation of multiphase materials. Research methods - analysis of controlled acoustic fields adapted to the features of a certain material and the prob-lem that is solved in relation to it, generated in multi-phase materials with a complex structure. As a result of application of new principles of use of acoustic methods informativeness and reliability of an estimation of properties of materials with inhomogene-ous structure is increased, it is shown that the complex acoustic analysis of properties of pressing and sintered powder materials allows to control process of compac-tion of material, control the structural state of the mate-rial, evaluate and compare elastic materials for materials with significantly different structural state in the condi-tions of anisotropy of properties and modulus of elastici-ty in the isotropic state of the material, control the une-ven distribution of properties by volume of the material; to provide adequate reflection of the dynamics of chang-es in its properties at each stage of manufacture. Methods for controlling their properties have been de-veloped for specific multicomponent materials. A series of experimental studies was conducted where a number of qualitatively new results were obtained. The direc-tions of further researches are substantiated. In the second part of the work developed modes of sin-tering, hot and cold rolling, which allowed to obtain mi-crolayer structural materials are not subject to stress concentrations, consisting of Ti bearing layers and weak TiAl3-interfaces between them. The materials have a limit of proportionality of 520-710 MPa and fatigue re-sistance in the direction across the rolling up to 480 MPa, which exceeds the known analogues. Product Description popup.authors Basheva Iryna O Bezimyanniy Yuriy G Borovik Valeriy G Vdovychenko Olexander V Voropaev Vitalii S Zorin Vladimir О Kirkova Olena G. Kozyratskyi Yevhen O Kolesnikov Anatoliy M Komarov Constantine A Kuzmov Andrii V. Luhovsʹkyy Yuri F Nazarenko Vladimir A Nyshchenetsʹ Vitaliy M Solntsev Viktor P Spiridonov Serhiy A Talko Oksana V Teslenko Lyudmyla O popup.nrat_date 2022-03-09 Close