Surface Morphology and Properties of the Surface Layer of AA6111 Aluminium Alloy Treated by a Pulsed Beam of Relativistic Electrons
V. V. Bryukhovetsky1, V. F. Klepikov1, V. V. Lytvynenko1, D. Ye. Myla1,2, S. I. Petrushenko2, V. A. Bychko3, Yu. F. Lonin4, A. H. Ponomarev4
1Institute of Electrophysics and Radiation Technologies NAS of Ukraine, 28 Chernyshevsky Str., UA-61002 Kharkiv, Ukraine
2V. N. Karazin Kharkiv National University, 4 Svobody Sqr., UA-61022 Kharkiv, Ukraine
3Chernihiv Polytechnic National University, 95 Shevchenko Str., UA-14035 Chernihiv, Ukraine
4National 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)