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Information × Registration Number 0308U001431, 0106U005492 , R & D reports Title Microplastic, macroplastic and superplastic deformation interconnection in the context of structural state of materials popup.stage_title Роль кінетичних процесів при мікро- та макропластичної деформації аморфних і кристалічних сплавів на основі заліза і алюмінію Head Andronov Volodimir Mihailovich, Registration Date 04-02-2008 Organization Kharkov national university named after V.N. Karazin popup.description2 Objects of researches – deformable industrial aluminium alloys: 1420, 1421, 1423, 1450, 1460, AMg6, model aluminium alloys: Al-4wt. % Ge and Al-2wt. % Ge, an alloy of system Al-Mg-Cu-Si, growing old alloys Al-(8-12)wt. % Mg and Fe-0,9wt. % Si, amorphous alloy Ni78Si8B14. The purpose of work an establishment of features of the kinetics of phase transitions in conditions of superplasticity of matrix alloys on the base of aluminium, an establishment of temperature – strain rate conditions of occurence of superplasticity and studying of features of structural changes during superplastic deformation of samples of an industrial constructional high-strength alloy 1450, research of microplasticity of growing old alloys on the base of aluminium and iron by a method of internal friction, an establishment of the kinetics of a mechanical relaxation of samples of amorphous alloy Ni78Si8B14 at room temperature. Methods of research – mechanical tests, mechanical spectroscopy, metallography, appearing through and raster electronic microscopy, the thermal analysis. Temperature-strain rate conditions of display of superplasticity by specimens of some matrix alloys on the base of aluminium are established, and also the features of kinetics of phase transitions and structural changes which are carried out in them during superplastic deformation. Microplasticity of samples of growing old alloys on the basis of aluminium and iron is investigated by a method of internal friction; the kinetics of a mechanical relaxation of samples of amorphous metal alloys such as Ni78Si8B14 at room temperature is established. The results of SRW can be used for improvement of physical theories and specification of representation about microplasticity, plasticity, superplasticity and internal friction of crystal and amorphous materials, and also by development new constructional and, in particular, composite materials. Product Description popup.authors popup.nrat_date 2020-04-02 Close