Features of formation of nanocrystalline state in internal-oxidized V-Cr-Zr-W and V-Mo-Zr system alloys during deformation by torsion under pressure

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Features of formation of nanocrystalline state in internal- oxidized V-Cr-Zr-W and V-Mo-Zr system alloys during deformation by torsion under pressure	1 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1088/1757-899X/116/1/012037

Title: Features of formation of nanocrystalline state in internal-oxidized V-Cr-Zr-W and V-Mo-Zr system alloys during deformation by torsion under pressure
Creator: Smirnov, Ivan V.
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Grinayev, K. V.
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Radishevsky, Vladislav L.
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Ditenberg, Ivan A.
Date: 2016
DOI: 10.1088/1757-899X/116/1/012037
Description: The results of investigation of features of nanostructural state formed during deformation by torsion under pressure in high-strength vanadium V-Cr-Zr-W and V-Mo-Zr systems alloys are presented. It was found that after deformation at number of revolutions N = 1, samples are characterized by high anisotropy of defect and grain structure. Inside grains, limited by high-angle boundaries, the formation of two-level structure states was revealed: fragmentation of the above grains on nanofragments from 5 to 20 nm in size with a dipole nature of low-angle misorientations and high (hundreds of degrees per micron) elastic curvature of crystal lattice. Formation of the above structural states leads to a 3-fold increase in microhardness values. Further increase in deformation degree leads to fracture of samples of vanadium alloy V-Mo-Zr with a high volumetric content of fine-disperse oxide phase. At the same time V-Cr-Zr-W-system alloy with a lower concentration of Zr and, as a result, a lower volume fraction of fine particles remains ductile.

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collection(s): Сибирский физико-технический институт
Identifier: смотреть в электронном каталоге НБ ТГУ
Type: статьи в журналах
Source: IOP Conference Series: Materials Science and Engineering. 2016. Vol. 116. P. 012037 (-5)
Language: eng

Created: 19-04-2018

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Сибирский физико-технический институт Features of formation of nanocrystalline state in internal-oxidized V-Cr-Zr-W and V-Mo-Zr system alloys during deformation by torsion under pressure