Effect of Pulsed IR Laser Radiation on the Dynamics and Morphology of Deformation Bands in an Aluminum–Magnesium Alloy

The dynamics and morphology of deformation bands under the simultaneous effect of mechanical loading and pulsed IR laser radiation on the surface of in aluminum–magnesium alloy AlMg6 were studied by high-speed video recording. The conditions, under which a laser pulse pierces a through hole with a d...

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Bibliographic Details
Published in:Physics of the solid state 2018-09, Vol.60 (9), p.1674-1681
Main Authors: Shibkov, A. A., Zolotov, A. E., Gasanov, M. F., Zheltov, M. A., Proskuryakov, K. A.
Format: Article
Language:English
Subjects:
ALUMINIUM COMPOUNDS
Aluminum
Banded structure
BINARY ALLOY SYSTEMS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEFORMATION
Deformation effects
Deformation mechanisms
DISTRIBUTION
ENERGY DENSITY
Flux density
HOLES
Iridium
LASER RADIATION
Lasers
Magnesium base alloys
MAGNESIUM COMPOUNDS
Metals
Morphology
Physics
Physics and Astronomy
PULSES
Solid State Physics
SURFACES
THICKNESS
TRANSFORMATIONS
VELOCITY
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Summary:The dynamics and morphology of deformation bands under the simultaneous effect of mechanical loading and pulsed IR laser radiation on the surface of in aluminum–magnesium alloy AlMg6 were studied by high-speed video recording. The conditions, under which a laser pulse pierces a through hole with a diameter of an order of magnitude smaller than the thickness of a plane specimen, thus inducing the development of a complicated spatiotemporal structure of deformation bands and a macroscopic jump in the tension diagram, were determined. The morphological transitions associated with the transformation of the type, shape, and spatiostatistical distribution of bands with a change in the laser pulse energy density were revealed. The probable mechanism of this phenomenon was discussed.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783418090299