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Influence of High-Temperature Treatment of Melt on the Composition and Structure of Aluminum Alloy

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EN
Abstrakty
EN
The aim of the current study was to examine the structure of an alloy treated at various temperatures up to 2,000–2,100 °C. Among research techniques for studying alloy structure there were the electron and optical microstructure, X-ray structure, and spectral analysis, and for studying the developed furnace geometric parameters the authors employed mathematical modeling method. The research was performed using aluminum smelting gas-fired furnaces and electric arc furnaces. The objects of the study were aluminum alloys of the brand AK7p and AK6, as well as hydrogen and aluminum oxide in the melt. For determining the hydrogen content in the aluminum alloy, the vacuum extraction method was selected. Authors have established that treatment of molten aluminum alloy in contact with carbon melt at high temperatures of 2,000–2,100 °C has resulted in facilitating reduction of hydrogen and aluminum oxide content in the melt by 40-43% and 50-58%, respectively, which is important because hydrogen and aluminum oxide adversely affect the structure and properties of the alloy. Such treatment contributes to the formation of the extremely fine-grained microstructure of aluminum alloy.
Rocznik
Strony
61--66
Opis fizyczny
Bibliogr. 34 poz., rys., tab.
Twórcy
  • A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, 29 Bldg 1, Bolshaya Ordynka St., Suite # 104, 119017 Moscow, Russia
  • Tashkent State Technical University, Faculty of Mechanical University 2,Tashkent 100095, Republic of Uzbekistan
Bibliografia
  • [1] Rasulov, S.A., Grachev, V.A. (2004). Quymakorlik Metallurgiyasi. Toshkent: O’Qituoichi.
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  • [3] Cherny, A.A. (1992). USSR certificate of authorship No. 1735686. Shaft-reverberatory gas furnace. Moscow: State Committee for Inventions and Discoveries.
  • [4] Shazimov, A.O. (1992). USSR certificate of authorship No. 1775485. Method and device for refining aluminum alloys. Moscow: State Committee for Inventions and Discoveries.
  • [5] Turakhodjaev, N.D., Shazimov, A.O. & Kamolov, Zh.S. (2008). Improving the quality of aluminum alloys produced from gas furnaces. Tashkent State Technical University Bulletin. 2-3, 193-195.
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  • [31] Bragina, V.P., Rasulov, S.A., Normurodov, U., Mukomov, A. et al. (2014). Mathematical modeling of the charge heating. In International Science and Practice Conference "Modern High Technologies: Development Priorities and Personnel Training" (pp. 26-30). Naberezhnye Chelny, Russia.
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Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-760d1f8b-0203-43f8-bc50-b13fbe805711
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