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Information × Registration Number 0211U008541, 0110U002562 , R & D reports Title Research of electrodynamic effect on gas saturation of the melt and pores formation in cast aluminum alloys. popup.stage_title Head Sinchuk Alla Vadymyvna, Registration Date 23-06-2011 Organization Institute of Pulse Research and Engineering popup.description2 Object of the research is presented by the processes of interaction of melts with gases and pores formation in cast aluminium alloys. Methods of the research: analysis of calculation results of the processes of gas saturation and gas emission in liquid metal systems; experimental methods of melting and exterior physical treatment of melts; thermography; analysis of the gas; metal study of the structure and properties. It is shown that fixation of a gas phase as useful porosity through realization of electrodynamic effects on the metal during hardening is explained by electroneutrality of gas inclusions in the melt and the difference between their own inductance and matrix aluminum melt inductance. Thermodynamic and electrodynamic factors are determined for hydrogen diffusion saturation of aluminum alloy with further formation of porosity volume sufficient for compensation of a volume shrinkage of alloy AK7 and pinoaluminum gaining. Methods are determined for treatment of a crystallizing metal (pulse electric current passing, surface treatment by a corona discharge of positive polarity), thus providing production of 40 to 50% uniformly distributed porosity in technically pure aluminum and from 10 to 20% - in alloy AK7. Product Description popup.authors Іванов А.В. Дьогтєв Ю.Н. Мельник О.В. Рубан Г.С. Тарасенко Р.О. Терещенко Н.О. Федченко Н.А. Харитонова Т.Г. Цуркін В.М. popup.nrat_date 2020-04-02 Close