https://vital.lib.tsu.ru/vital/access/manager/Index ${session.getAttribute("locale")} 5 Molecular dynamics modeling of compression-deformed Cu-Al single crystals of different sizes https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001654 Wed 24 May 2023 15:54:20 KRAT ]]> Numerical study and experimental validation of deformation of <111> FCC CuAl single crystal obtained by additive manufacturing https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000896291 axis. A Ni single crystal, which is characterized by higher stacking fault energy (SFE) than aluminum bronze, was also considered. It was found that the first dislocations started to move earlier in the material with lower SFE, in which the slip of two Shockley partials was observed. In the case of the material with higher SFE, the slip of a full dislocation occurred via successive splitting of its segments into partial dislocations. Regardless of the SFE value, the deformation was primarily occurred by means of the formation of dislocation complexes involved stair-rod dislocations and partial dislocations on adjacent slip planes. Hardening and softening segments of the calculated stress–strain curve were shown to correspond to the periods of hindering of dislocations at dislocation pileups and dislocation movement between them. The simulation results well agree with the experimental findings.]]> Wed 22 Jun 2022 09:52:37 KRAT ]]> Deformation and wear of Hadfield steel single crystals under dry sliding friction https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000927120 and <111> single crystals. Shear stress calculations with allowance for the friction force showed that twinning is not the predominant deformation mechanism for the considered orientations. TEM studies of the dislocation structure, repolished and etched surface revealed agreement between the experimental and numerical data. According to EBSD analysis, reorientation on the worn surface and in the subsurface region changes depending on the combination of principal stresses in different areas of the worn surface. These results confirmed that conditions for the deformation mechanisms (slip and twinning) are determined by the local conditions in the sample mesovolume. The wear curves demonstrate two stages of even and uneven wear. The uneven wear mechanism is substantiated by the analysis of the structure in the subsurface region, wear debris, and the worn surface. An empirical scheme of the wear and damage accumulation mechanisms is proposed.]]> Wed 18 Jan 2023 16:32:33 KRAT ]]> Aluminum bronze crystallization on deformed base during electron beam additive manufacturing https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001017564 Mon 29 Jan 2024 10:01:16 KRAT ]]> Molecular dynamics study of aluminum bronze nanograin surfacing https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001017563 Mon 29 Jan 2024 10:01:11 KRAT ]]>