Search academic texts

Information × Registration Number 0211U008692, 0110U003839 , R & D reports Title Development of low-price and high-quality aluminum alloys by electrohydraulic treatment (EHPT) popup.stage_title Head Tsurkin Volodymyr Mykolayovych, Registration Date 30-08-2011 Organization Institute of Pulse Research and Engineering popup.description2 The objective of work is to determine optimum parameters of electrohydropulse treatment of melts of alloys А537 and А390 providing for enhanced quality of cast items for automobile industry; development of respective technological process, equipment and their implementation in the enterprise. Crystallization kinetics is explored of alloys А357 and А390 exposed to electrohydropulse treatment. It is established that after treatment due to decrease of an eutectic point the temperature interval expands and the time interval of alloys crystallization shortens. The structure and properties of alloys А357 and А390 with Fe content from 0.5 to 2% are studied. After treatment, refining of structural components is observed, dispersion of needle intermetallics, partial change of Fe-phase morphology and improvement of a number of mechanical properties. It is shown that the treatment effect preserves at further holding of the melt for no less than 45 min. The plant of model УВ14К is developed for treatment of melt of weight 400 kg equipped with a titanium waveguide, enabling thus to treat the melt with pulse energies to 1.8 kJ at pulse repetition frequency from 1 to 6 Hz with an option of frequency step regulation. Product Description popup.authors Іванов А.В. Голень Ю.В. Гумененко М.К. Дьогтєв Ю.Н. Сінчук А.В. Федченко Н.А. popup.nrat_date 2020-04-02 Close