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0214U007127,
0112U000882
,
Research of physical and chemical processes of aluminium alloy interaction with the modifiers in conditions of pulse stressing and development of efficient complex technological methods of hypereutectic silumins modification
Tsurkin Volodymyr Mykolayovych,
22-04-2014
Institute of Pulse Research and Engineering
Object of the research is pulse power action on liquid hypereutectic alloys of the Al-Si system with added chemical elements, i.e. the modifiers. Purpose of the research is to determine physical conditions of modification and technological parameters of electrohydropulse and pulse electrical current treatment of the melt providing for the efficient action of modifiers, structure, and mechanical properties of hypereutectic silumins in accordance with the modern requirements of automobile industry. Basic regularities of the influence of the melt stressing by electrical current on the processes of dilution and absorption of modifiers, and also the thermodynamical state of the melt are studied. The influence of parameters and modes of energy and chemical modeling both separately and jointly on the change of morphology and the growth of phases in hypereutectic silumin. It is shown that fining of primary silicon and eutectic silicon to 20 µm and to 10 µm, respectively, is achieved by the complex treatment with inserted modifiers SiC, P, Ti, and B in furnaces within the temperature range from 820 to 800 °С within two minutes. Possible ways of complex modification are discussed.
Іванов А.В.
Васянюк М.О.
Гумененко М.К.
Дмитрішина Я.Ю.
Сінчук А.В.
Федченко Н.А.
Фещук М.Л.
Харитонова Т.Г.
Череповський С.С.
2020-04-02
Updated: 2025-12-07
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