Surface Morphology and Properties of the Surface Layer of AA6111 Aluminium Alloy Treated by a Pulsed Beam of Relativistic Electrons

Issues » Volume 44, Issue 4

V. V. Bryukhovetsky$^{1}$, V. F. Klepikov$^{1}$, V. V. Lytvynenko$^{1}$, D. Ye. Myla$^{1,2}$, S. I. Petrushenko$^{2}$, V. A. Bychko$^{3}$, Yu. F. Lonin$^{4}$, A. H. Ponomarev$^{4}$

$^{1}$Institute of Electrophysics and Radiation Technologies NAS of Ukraine, 28 Chernyshevsky Str., UA-61002 Kharkiv, Ukraine
$^{2}$V. N. Karazin Kharkiv National University, 4 Svobody Sqr., UA-61022 Kharkiv, Ukraine
$^{3}$Chernihiv Polytechnic National University, 95 Shevchenko Str., UA-14035 Chernihiv, Ukraine
$^{4}$National Science Center ‘Kharkiv Institute of Physics and Technology’, NAS of Ukraine, 1 Akademichna Str., UA-61108 Kharkiv, Ukraine

Received: 25.01.2022. Download: PDF

The surface morphology and properties of the microstructure of the surface layer of aluminium alloy 6111 irradiated by a pulsed beam of relativistic electrons are studied. Intense thermal heating, which is created by the electron beam, melts the surface layer of the alloy. A surface layer with a modified sub-microcrystalline grain microstructure is formed as a result of the ultra-fast melt solidification. The effect of the pulsed electron beam is accompanied by the formation of a developed surface relief with micro-cracks and craters. The surface profile has a wavelike type with hemispherical protrusions. The strength and plasticity of the surface layer modified by the pulsed electron beam are determined according to the micro-hardness data.

Key words: pulsed beam of relativistic electrons, aluminium alloy, micro-cracks, craters.

URL: https://mfint.imp.kiev.ua/en/abstract/v44/i04/0515.html

DOI: https://doi.org/10.15407/mfint.44.04.0515

PACS: 29.25.Bx, 61.46.−w, 61.80.Fe, 62.20.−x, 68.37.Hk

Citation: V. V. Bryukhovetsky, V. F. Klepikov, V. V. Lytvynenko, D. Ye. Myla, S. I. Petrushenko, V. A. Bychko, Yu. F. Lonin, and A. H. Ponomarev, Surface Morphology and Properties of the Surface Layer of AA6111 Aluminium Alloy Treated by a Pulsed Beam of Relativistic Electrons, Metallofiz. Noveishie Tekhnol., 44, No. 4: 515—530 (2022) (in Ukrainian)

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