Multifractal properties of the molybdenum ribbon surface at mechanical loading
Obidov B. A.1, Korsukov V. E.1, Hilarov V. L.1, Ankudinov A. V.1, Butenko P. N.1, Knyazev S. A.2, Korsukova M. M.1
1Ioffe Institute, St. Petersburg, Russia
2Bonch-Bruevich St. Petersburg State University of Telecommunications, St. Petersburg, Russia
Email: Barzu.Obidov@mail.ioffe.ru, vjacheslav.korsukov@mail.ioffe.ru, Vladimir.Hilarov@mail.ioffe.ru, alexander.ankudinov@mail.ioffe.ru, pavel.butenko@mail.ioffe.ru, knyazef@yandex.ru, maria.korsukova@mail.ioffe.ru

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The effect of uniaxial tensile stress on the atomic structure and relief of the subsurface layer of molybdenum ribbons has been studied. The destruction of the Mo (100) face with the formation of crystallites was revealed near the crack tip. At the same time, the block structures are found to rotate both in the lateral plane and in its perpendicular plane. The surface layer structure in the lateral plane of the ribbon is fragmented into sections, which is associated with the surface relief at different scales. With a help of the concept of multifractal formalism, the spectra of singularities of the initial, loaded and ruptured surface are calculated. It is found that the width of the singularity spectrum, can serve as an indication of the forthcoming rupture.. Keywords: molybdenum ribbon, mechanical load, annealing, destruction of material, block structures, surface, multifractal formalism.
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