Наши поздравления
Поздравляем лауреатов премии им. Е. О. Патона НАН Украины. Поздравляем сотрудников Института электросварки им. Е. О. Патона НАНУ с победой в конкурсе на лучшее книжное издание НАН Украины....
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| Published in: | Современная электрометаллургия |
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| Date: | 2017 |
| Format: | Article |
| Language: | Russian |
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Інститут електрозварювання ім. Є.О. Патона НАН України
2017
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2019-11-01T19:42:35Z 2019-11-01T19:42:35Z 2017 Наши поздравления // Современная электрометаллургия. — 2017. — № 2 (127). — С. 34, 52. — рос. 0233-7681 https://nasplib.isofts.kiev.ua/handle/123456789/160343 Поздравляем лауреатов премии им. Е. О. Патона НАН Украины. Поздравляем сотрудников Института электросварки им. Е. О. Патона НАНУ с победой в конкурсе на лучшее книжное издание НАН Украины. ru Інститут електрозварювання ім. Є.О. Патона НАН України Современная электрометаллургия Информация Наши поздравления Наші поздоровлення Our congratulations Article published earlier |
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Інститут електрозварювання ім. Є.О. Патона НАН України |
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Поздравляем лауреатов премии им. Е. О. Патона НАН Украины.
Поздравляем сотрудников Института электросварки им. Е. О. Патона НАНУ с победой в конкурсе на лучшее книжное издание НАН Украины.
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Наши поздравления // Современная электрометаллургия. — 2017. — № 2 (127). — С. 34, 52. — рос. |
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34 ISSN 2415-8445 СОВРЕМЕННАЯ ЭЛЕКТРОМЕТАЛЛУРГИЯ, № 2 (127), 2017
ПЛАЗМЕННО-ДУГОВАЯ ТЕХНОЛОГИЯ
ALLOYING OF SURFACE LAYER OF MOULD COPPER PLATES
BY THE METHOD OF PLASMA-ARC REMELTING
V.G. Kozhemyakin, V.R. Burnashev, V.A. Shapovalov, T.I. Grishchenko, D.A. Kalashnik, A.V. Veretilnik
E.O. Paton Electric Welding Institute, NASU.
11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
In the work the scheme of alloying the surface layer of mould copper plate is suggested and tested with applying a
master alloy, the composition of which is changed depending on plate zone, which allows increasing the concentration
of alloying elements for the wear resistance increase in the bottom part and near the edges of the mould working
surface. Results of physical and chemical investigations on interaction of alloying elements Cr and Zr with copper
under conditions of plasma-arc alloying are given. Technological conditions of alloying of copper plates in the plasma-
arc installation OB-1957 are presented. Chemical composition and degree of elements assimilation in a surface layer is
determined. Dependencies of content of alloying elements in a surface layer on physical and the copper plate mechanical
properties were established. For the first time the surface layer of experimental-industrial copper plates of 460×135×70
and 360×135×70 sizes for moulds of machines of continuous casting of billets (MCCB) was alloyed with Cr and Zr
elements by using the plasma-arc remelting method. Ref. 6, Table 1, Figures 6.
K e y w o r d s : copper plate; mould of MCCB; alloying; surface layer; copper alloys; plasma-arc remelting;
dispersion strengthening
Поступила 23.05.2017
ПОЗДРАВЛяЕМ
лауреатов премии им. Е. О. Патона НАН Украины
Президиум Национальной академии наук Украины на заседании 8 февраля 2017 года присудил премию
имени Е. о. Патона академику НаН Украины Григоренко Георгию Михайловичу, доктору технических
наук Шейко ивану Васильевичу и доктору технических наук Шаповалову Виктору александровичу за
цикл работ «Плазменные технологии и оборудование в металлургии».
Сердечно поздравляем лауреатов с заслуженной наградой!
Слева направо:
В. а. Шаповалов, Г. М. Григоренко, и. В. Шейко
52 ISSN 2415-8445 СОВРЕМЕННАЯ ЭЛЕКТРОМЕТАЛЛУРГИЯ, № 2 (127), 2017
НОВЫЕ МАТЕРИАЛЫ
PLOTTING OF CALCULATION THERMOKINETIC DIAGRAMS OF ANIZOTHERMAL TRANSFORMATIONS
OF TITANIUM ALLOYS ON ALUMINIDES BASE
V.A. Kostin, G.M. Grigorenko, S.G. Grigorenko
E.O. Paton Electric Welding Institute, NASU.
11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
Aluminides and alloys on their base are the promising high-strength and scale-resistant materials, demanded for critical
equipment and components, in particular in shipbuilding, aerospace industry. The main method of producing the required
complex of mechanical properties of intermetallic alloys is their thermomechanical treatment, the parameters of which
can be obtained on the base of plotting the thermokinetic diagrams of anisothermal transformations of intermetallic
alloys of Ti–Al system. The obtaining of experimental thermokinetic diagrams of intermetallic alloys is quite difficult.
The aim of the present work was in plotting of a calculation thermokinetic diagram of anisothermal transformations
of intermetallic titanium alloy on the titanium aluminide base. The calculation method was based on using the theory
of multi-component alloys and thermodynamic modeling using the CALPHAD methodology. To solve the problem
of prediction of temperatures of phase transformations in intermetallics of Ti–Al system, the method of a regression
analysis was used. The procedure was developed, with the help of which the thermokinetic diagram of formation of
titanium aluminide Ti3Al was plotted. The equations of regression for determination of temperatures of beginning the
phase transformations on the diagram of state of the Ti–Al system were suggested. The effect of aluminium content in
intermetallics Ti3Al on the temperature of beginning the intermetallic formation was determined. It is shown that with
increase in aluminium content in intermetallic Ti3Al from 10 up to 29 at.% the temperature of beginning the β-Ti→Ti3Al
transformation is increased from 520 up to 1170 oC. The further increase in aluminium content in intermetallic from 29
up to 40 at.% leads to a negligible reduction in initial temperature of transformation to 1140 oC. The developed method
can be used for the modeling of thermokinetic diagrams of anisothermal transformations in complex titanium alloys,
Ref. 19, Table 1, Figures 5.
K e y w o r d s : titanium alloys; intermetallics; titanium aluminides; phase transformations; Gleeble 3800; regression
analysis
Поступила 13.04.2017
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