Thermocycling with pulse-periodic laser action for formation of nanoporous structure in metal material
S.P. Murzin, V.I. Tregub, E.V. Shokova, N.V. Tregub

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DOI: 10.18287/0134-2452-2013-37-1-99-104.

Full text of article: Russian language.

Pages: 99-104.

Abstract:
Conditions of pulse-periodic laser action with thermocycling for formation of a nanoporous structure consisting of principally channel-type nanosize pores in two-component Cu-Zn alloy “brass of 62%” are experimentally defined. The transformation of laser radiation into a light spot with uniform distribution of power density was carried out with the aid of an optical system containing an element of diffractive computer optics – radiation focusator. Depth and area locality of the physical processes in heat-affected zone with preservation of initial material properties and absence of significant deformation in the remaining volume is ensured in the implementation of the chosen conditions. The amount of structural defects – vacancies, dislocations and their clusters increases in two-component brass under the influence of thermal stress. Wedge-shaped submicrocavities that converge at their edges with formation of extensive nanosize channels with widths not more than 100 nm are formed in the material of 0.05 mm thickness.

Key words:
thermocycling, laser action, nanoporous structure, metal material.

Citation:
Murzin SP, Tregub VI, Shokova EV, Tregub NV. Thermocycling with pulse-periodic laser action for formation of nanoporous structure in metal material. Computer Optics 2013; 37(1): 99-104. DOI: 10.18287/0134-2452-2013-37-1-99-104.

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