S. V. Vasiliev, E. A. Sviridova, A. I. Limanovsky, V. M. Tkachenko, T. V. Tsvetkov, V. V. Burkhovetskiy, V. N. Varyukhin, V. I. Tkach, “Structure and mechanical properties of layered composites consolidated by high-pressure torsion of amorphous and crystalline aluminum alloy ribbons”, Fizika Tverdogo Tela, 2023, Volume 65, Issue 12,Pages <nobr>2223

Metals

Structure and mechanical properties of layered composites consolidated by high-pressure torsion of amorphous and crystalline aluminum alloy ribbons

S. V. Vasiliev^ab, E. A. Sviridova^a, A. I. Limanovsky^a, V. M. Tkachenko^a, T. V. Tsvetkov^a, V. V. Burkhovetskiy^a, V. N. Varyukhin^a, V. I. Tkach^a

^a Galkin Donetsk Institute for Physics and Engineering, Donetsk, Russia
^b Donbas National Academy of Civil Engineering and Architecture, Makeyevka, Russia

Abstract: The structure and mechanical properties of layered composites composed of amorphous Al$_{86}$Ni$_9$Gd$_5$ alloy ribbons placed between two crystalline rapidly cooled Al$_{95.8}$Mn$_{3.8}$Fe$_{0.4}$ alloy ribbons and consolidated by high-pressure torsion (HPT) were studied by X-ray diffraction analysis, scanning electron microscopy, measurements of microhardness and three-point bending tests. The influence of a high-strength amorphous component on the structure, microhardness and plasticity of the disks consolidated at various degrees of deformation was studied. It was found that by combination of hardness and plasticity, the composite disks synthesized in the work were superior to that of the two layer disks consolidated by the HPT method, consisting of amorphous tapes, and disks composed of amorphous ribbons with aluminum foil coatings. The possible factors causing additional hardening of composite disks were discussed.

Keywords: layered composites, high-pressure torsion, rapidly cooled ribbons, amorphous and crystalline structure, consolidation, hardness, plasticity.

Received: 30.10.2023
Revised: 30.10.2023
Accepted: 31.10.2023

DOI: 10.61011/FTT.2023.12.56766.223