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Metal Science and Metallography
ArticleName Directed changing properties of amorphous and nanostructured metal alloys with help of nanosecond laser impulses
DOI 10.17580/cisisr.2021.02.14
ArticleAuthor I. V. Ushakov, I. S. Safronov
ArticleAuthorData

National University of Science and Technology “MISiS”, Moscow, Russia:

I. V. Ushakov, Dr. Eng., Prof., Head of Physics Dept., e-mail: ushakoviv@mail.ru
I. S. Safronov, Cand. Eng., Senior Lecturer, Physics Dept.

Abstract

One of the most important problems of materials science is the ability to control the physical and mechanical properties of materials that differ in structure. Forming a specific structure on the surface is a time-consuming process, especially for non-standard alloys. Such materials include amorphous and nanostructured metal alloys. In practice, their use is possible after heat treatment. Additional processing often leads to the destruction of the nanostructure. The laser impulse has a number of features, including a complex effect on the surface layers of the material. The wide variable possibilities of laser processing provide the basis for the possibility of forming the mechanical properties of amorphous-nanocrystalline metal alloys. Spot irradiation with high-energy beams can preserve the unique physical properties of the samples as a whole and improve the strength characteristics. The directed change in the properties of an amorphous-nanocrystalline metal alloy by local processing with a nanosecond laser impulse is an urgent research task.

This work was carried out with financial support by International Information Nobel Centre.

keywords Amorphous-nanocrystalline cobalt- and iron-based alloy, microhardness, laser processing, viscosity of microfracture, crack formation
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