Melting Effects of High-Current Relativistic Electron Beam on Aluminum Alloy 1933
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621.9.048.7 (2)
Prelucrare mecanică și așchierea. Prelucrare abrazivă. Ciocane și prese (129)
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KOBETS, A., HORODEK, P., LYTVYNENKO, V., LONIN, U., PONOMAREV, A., STARTSEV, O., UVAROV, V.. Melting Effects of High-Current Relativistic Electron Beam on Aluminum Alloy 1933 . In: Электронная обработка материалов, 2015, nr. 5(51), pp. 67-71. ISSN 0013-5739.
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Электронная обработка материалов
Numărul 5(51) / 2015 / ISSN 0013-5739 /ISSNe 2345-1718

Melting Effects of High-Current Relativistic Electron Beam on Aluminum Alloy 1933
CZU: 621.9.048.7

Pag. 67-71

Kobets A.12, Horodek P.1, Lytvynenko V.2, Lonin U.3, Ponomarev A.3, Startsev O.2, Uvarov V.3
 
1 Joint Institute of Nuclear Research,
2 Institute of Electrophysics and Radiation Technologies, NAS of Ukraine,
3 National Science Center Kharkiv Institute of Physics and Technology, NAS of Ukraine
 
 
Disponibil în IBN: 20 ianuarie 2016


Rezumat

Melting effects of the irradiation by the intense microsecond relativistic hollow electron beam on the wrought aluminum alloy 1933 were studied. The fracture mechanisms for both irradiated and nonirradiated samples and changes in their structure and chemical composition were investigated. The thermal model describing the beam-metal interaction was developed based on the hyperbolic relaxation heat transfer equation, the weakly coupled theory of thermoelasticity, and the Stefan problem. The finite difference method was used to perform calculations according to this model. The areas of modified and non-irradiated material were determined both experimentally and numerically; the quenched, heat-affected and shock-wave-affected zones were localized.

Изучены эффекты переплава деформированного алюминиевого сплава 1933 воздействием интенсивным микросекундным релятивистским электронным пучком. Исследованы механизмы разрушения, изменения в структуре и элементном составе облученных и необработанных образцов. Построена тепловая модель описывающая взаимодействие пучка с металлом на основе гиперболического уравнения релаксации теплового потока, слабо связанной теории термоупругости и проблемы Стефана. При проведении численных расчетов согласно разработанной модели использован метод конечных разностей. Экспериментально и численно определены области модифицированного и необлученного материала, локализированы зоны закалки, теплового и ударно-волнового воздействия.

Cuvinte-cheie
aluminum alloy 1933, fracture mechanism,

electron beam, ablation