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Information × Registration Number 0217U001575, 0112U001231 , R & D reports Title Researching of the peculiarities of multi-layer products formation on the base of casting methods and physical-and-chemical treatment, including those with composite layers, by different methods of their obtaining. popup.stage_title Head Lichoshva Valeriy Petrovich, Registration Date 01-03-2017 Organization Physico-technological institute of metals and alloys National academy of Sciences of Ukraine popup.description2 The object of research is multi-layer products, composite materials, processes of plasma, laser and electron-beam processing. The target of research is to study the peculiarities of layers formation in multi-layer productson the base of ferrous and nonferrous metal alloys; development of the technological principles for the processes of production of new multi-layer superduty engineering constructions using the casting methods with highly-concentrated energy sources. The research methods include metallographic, X-ray micrography and spectral analyses, mechanical tests, physical and mathematical simulation, verification nature tests. The research results for non-stationary thermal and hydrodynamic processes within the area of heating by laser radiation and plasma jet are presented. It is set that convective streams in the melt increase the amplitude of temperature fluctuations at the expense of mutual action of heat flow oscillations and the melt's motion rate. The temperature-time relationships, gas- and hydrodynamic dependences of the formation process of multi-layer constructions and composite materials are determined. The method to control the processes of plasma, laser and electron-beam processing is developed due to the optimization of space-time characteristics of concentrated energy sources of continuous action. The experimental and technological equipment is created to research the bonding processes of different metals and alloys for production of multi-layer constructions of wide application range with composite layers. The method of production of bimetallic flat constructions is developed on the base of refractory and fusible metals during the process of electron-beam melting. The recommendations on implementation of the developed technologies and new combined methods of processing are formulated. Product Description popup.authors Афтанділянц Євген Григорович Глушков Дмитро Володимирович Головко Леонід Федорович Голубчик Марія Іванівна Кірчу Федір Іванович Каричковський Петро Микитович Клименко Людмила Михайлівна Кравчук Леонід Андріанович Крещук Олександр Васильович Кудрявченко Микола Олександрович Мосенцова Людмила Вікторівна Надашкевич Роман Сергійович Пелікан Олег Анатолійович Рейнталь Олена Олександрівна Семенець Валерій Андрійович Тимошенко Андрій Миколайович Чернявський Вадим Борисович Шатрава Олександр Павлович Шматко Олександр Володимирович popup.nrat_date 2020-04-02 Close