Fracturing of the Surface Layer of Al−Cu Alloy under the Action of a High-Power Ion Beam

The fracturing of Al−Cu alloy surface layers is studied under the action of a high-power ion beam of nanosecond duration. Local exfoliation of the surface layer whose thickness is 7‒15 μm is found to occur if the alloy is irradiated once by an ion beam with a current density of 150 A/cm 2 . Changes...

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Bibliographic Details
Published in:Surface investigation, x-ray, synchrotron and neutron techniques x-ray, synchrotron and neutron techniques, 2018-07, Vol.12 (4), p.797-800
Main Authors: Kovivchak, V. S., Panova, T. V.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Copper
Fracturing
Ion beams
Irradiation
Materials Science
Surface layers
Surfaces and Interfaces
Thickness
Thin Films
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Summary:The fracturing of Al−Cu alloy surface layers is studied under the action of a high-power ion beam of nanosecond duration. Local exfoliation of the surface layer whose thickness is 7‒15 μm is found to occur if the alloy is irradiated once by an ion beam with a current density of 150 A/cm 2 . Changes in the surface composition of the irradiated alloy are detected with the help of energy dispersive X-ray microanalysis. The alloy sample surface is enriched with copper under all irradiation conditions. Possible mechanisms of the observed fractures are discussed.
ISSN:1027-4510
1819-7094
DOI:10.1134/S1027451018040304