Deformation Nano-Mechanisms Occurring on the Interface of Dissimilar Materials Joined in Solid Phase by Means of High Temperature Rolling

Boris V. Borts¹, Nikolay I. Danilenko², Aleksander A. Parkhomenko¹, Viktor I. Tkachenko¹, Irina M. Korotkova¹, Igor O. Vorobyov¹, Aleksander T. Lopata¹

¹National Science Center, Kharkov Institute of Physics & Technology, The National Academy of Sciences of Ukraine (NASU), Kharkov, Ukraine.
²Frantsevich Institute for Problems of Materials Science, The National Academy of Sciences of Ukraine (NASU), Kyiv, Ukraine.

DOI: 10.4236/ojmetal.2014.44012                

Abstract

Nano-mechanisms of crystal lattice deformation on the interface of dissimilar materials (Cu-Nb), joined by vacuum rolling in solid phase under high temperature (950℃) were studied by means of high resolution electron microscopy. Input of carriers of rotation modes—nano-dipoles of partial disclinations and nano-twist disclinations in the form of double spirals in deformation mechanisms were analyzed. The role of these mechanisms in decrease of shear stability of the interface areas and in production of high-quality rolled metal is discussed.

Keywords

Vacuum Hot Rolling, Solid Phase, Interface, Cupper-Niobium, Microscopy, Disclinations

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Ivanov, V.Y., Ed. (1978) 50 Years to Kharkov Institute of Physics and Technology NAS of Ukraine. Naukova Dumka, Kiev, 263 p.
[2]	Vladimirov, V.I. and Romanov, А.E. (1986) Disclinations in Crystals. Science, Leningrad, 224 p.
[3]	Borts, B.V., Danilenko, N.I., Neckluydov, I.M., Parkhomenko, A.A. and Firstov, S.A. (2011) Nano-Structuring and Mass-Transfer Close to Interface of the Metals, Welded by Hot Rolling in Vacuum. Metallophysica i Noveishie Tekhnologi, 33, 1035-1044. http://mfint.imp.kiev.ua/ru/toc/v33/i08.html
[4]	Tyumentsev, A.N. and Ditenberg, I.A.P. (2011) Nanodipoles of Partial Disclinations as Quasi-Ductile Strain Carriers Responsible for Nanocrystalline Structure Formation in Metals and Alloys under Severe Plastic Deformation. Physical Mesomechanics, 14, 249-260. http://www.ispms.ru/ru/61/392/1807/ http://dx.doi.org/10.1016/j.physme.2011.12.004
[5]	Panin, V.E., Sergeev, V.P. and Panin, A.V. (2010) Nanostructuring of the Surface Layers of Construction Materials and Nanostructured Coating Deposition. Politechnic University Publishing House, Tomsk, 140 p. http://portal.tpu.ru/files/departments/publish/panin_nanostructuring_zac.pdf
[6]	Panin, V.Е., Lihachev, V.A. and Grinjaev, V.I. (1990) Structural Levels of Plastic Deformation of Solid States. Science, Novosibirsk, 345 p.