Кл.слова (ненормированные):
Copper -- Deformation -- Elastic waves -- Flight control systems -- Magnetism -- Multilayer films -- Multilayers -- Wavefronts
Аннотация: The work presents the results of the investigationof deformation processes occurring in copper after stress-wave influence. Structural changes analysis is carried out by direct research methods (X-ray phase analysis and optical microscopy) along and perpendicular to the spreading direction of the stress wave front in the copper foil plane. For more information, investigations have been conducted by an indirect method using ferromagnetic resonance of magnetic characteristics. As a magnetic covering, Co/Ni-type multilayer films are deposited on the copper foil, which makes it possible to apply magnetic research methods. The magnetic response of the multilayer covering correlates with the modification of the copper structure observed by direct methods. The information obtained in the course of research allows us to conclude that the wave character of the deformation processes occurring in copper is natural. The value and direction of structural modifications vary along the sample length as a function with a long-wave period is about 30 mm, which is consistent with the inhomogeneous distribution model of internal stresses. Throughout the sample length, alternating areas of stretching and compression of copper grains are fixed along the spreading direction of the stress wave front. The greatest stretching of the structural elements is observed at a distance equal to almost half the wavelength of the mechanical deformation field. Thus, the translational (shear) mode of the mechanical field of material plastic flow appears as the results of the investigation. © 2019 Published under licence by IOP Publishing Ltd.
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Держатели документа:
Siberian Federal University, 79, Svobodny Ave., Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50/38, Academgorodok Str., Krasnoyarsk, 660036, Russian Federation
Institute for Energy Research, Safety Research and Reactor Technology, Forschungszentrum Julich GmbH, Julich, D-52425, Germany
Reshetnev Siberian State University of Science and Technology, 31, Krasnoyarsky Rabochy Ave., Krasnoyarsk, 660037, Russian Federation
Доп.точки доступа:
Shepeta, N. A.; Denisova, E. A.; Денисова, Елена Александровна; Bucaemskii, A. A.; Tynchenko, V. S.; Gorodov, A. A.; International Conference on Mechanical Engineering, Automation and Control Systems(13 ; 2008 ; 12 - 14 Dec. ; Novosibirsk)