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Information × Registration Number 0211U008543, 0107U004477 , R & D reports Title Influence investigation of electrical hydro pulse treatment on tangential stress relief within structural aluminum alloys and determination of process parameters, which provide improving material deformability popup.stage_title Head Коsеnkov Viktor Мykhaylovych, Registration Date 23-06-2011 Organization Institute of Pulse Research and Engineering popup.description2 Object of the research is the phenomenon of relaxation of tangential stresses in aluminium alloys in the course of pulse electrohydraulic (EH) loading. The purpose of the work is to determine the dependence of plastic properties of constructional aluminium alloys on the relaxation processes caused by activity of electrohydropulse loading and to establish their connection with physicomechanical performances of materials, energy and power parametres in technological operations of materials pressure treatment. Methods of the research - mathematical modelling and experimental research of the phenomenon of relaxation of tangential stresses in aluminium alloys in the process of electrohydropulse loading. For the process of cold dynamic deformation of thin-sheet aluminium alloys, certain dependence of energy balance on the magnitude of compression strain is detected: at compression strains less than 20%, from 70% of plastic strain effect goes for a change of internal energy of a material, and the rest goes for heat losses; at the increase of a compression strain to 50%, almost entire work of plastic defromation goes for metal heating. For the process of electrohydropulse deformation of constructional aluminium alloys with velocity 1000s-1, the relation between a total energy of a material and energy of a capacitor is established. Definitely, the total energy of a material does not exceed 3% energy of a capacitor in the field of elastic strains, and in the field of plastic strains reaches 30% of energy of a capacitor. In comparison with other deformation means, it is established that the combined pulse-static deformation brings the most positive changes into a grain structure and mechanical properties of the deformed material. Product Description popup.authors Аврамець Д.Р. Бичков В.М. Коломийцева Л.П. Сокол С.В. Соловьян Н.І. Старков М.В. Тищенко Ф.М. Швець І.С. popup.nrat_date 2020-04-02 Close