Open AccessSurface modification of hypereutectic silumin subjected to a millisecond modulated electron beam treatment
Author(s) -
K. T. Ashurova,
M. S. Vorobyov,
Е. А. Петрикова,
Yu. F. Ivanov,
P. V. Moskvin,
M. E. Rygina
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2064/1/012045
Subject(s) - materials science , irradiation , beam (structure) , tribology , cathode , pulse duration , diffraction , phase (matter) , cathode ray , plasma , surface modification , pulse (music) , composite material , electron , analytical chemistry (journal) , optics , chemical engineering , chemistry , laser , physics , organic chemistry , quantum mechanics , nuclear physics , chromatography , detector , engineering
In this work, using a unique feature of the “SOLO” electron source with a grid plasma cathode based on a low-pressure arc discharge, which consists in the possibility of controlled operation of the beam power during a pulse of submillisecond duration, and, accordingly, the rate of energy input into the sample surface, we investigated the modes irradiation of samples of hypereutectic silumin. The irradiation modes had the same energy density during the first 200 μs of the pulse, equal to 20 J/cm 2 and differed in different durations of further maintaining the surface temperature at 600°C for a time of up to 1 ms. The results of tribological tests and methods of diffraction microscopy of the investigated defect structure, the elemental and phase composition, the morphology of the strengthening phases of the modified layer of the hypereutectic silumin samples are presented.