Synthesis of metal materials nanoporous structures with cyclic elasto-plastic deformation under laser treatment using radiation focusators
S.P. Murzin

Full text of article: Russian language.

Abstract:
The synthesis method of metal materials nanoporous structures formation with cyclic elasto-plastic deformation under laser treatment was developed. The studies of the alloy structure with scanning electron microscopy revealed the following. During various operating modes microcavities of different shapes were formed in the material surface layer depending on the pulse intensity of laser treatment with thermal cycling of copper-zinc L62 alloy: from globular up to 10 µm with peaks and cavities to elongated teardrop and wedge up to 10 µm and length of more than 50 µm. The submicropores were formed during investigated range of exposure modes in L62 brass with a characteristic size more than 1 µm, and during more intense modes - with a width less than 1 µm and a length of more than 20 µm. The study of the copper-zinc alloy L62 fine structure showed microcavities of elongated teardrop and wedge shapes and taper at their edges to form elongated nanoscale channel having width of not more than 100 nm and a length of 10 µm after laser processing with thermal cycling.

Key words:
laser treatment, metal material, nanostructure, cyclic elasto-plastic deformation, radiation focusator.

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