Mechanical Properties of Nano- and Submicrocrystalline Iron Subjected to Severe Plastic Deformation by Friction

Yurkova, A.I.; Byakova, A.V.

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Title	Mechanical Properties of Nano- and Submicrocrystalline Iron Subjected to Severe Plastic Deformation by Friction
Authors	Yurkova, A.I. Byakova, A.V.
ORCID
Keywords	Iron Nanocrystalline Structure Nanoindentation Young`s Modulus Nanohardness
Type	Conference Papers
Date of Issue	2012
URI	http://essuir.sumdu.edu.ua/handle/123456789/35149
Publisher	Sumy State University
License	Copyright not evaluated
Citation	Yurkova, A. I. Mechanical Properties of Nano- and Submicrocrystalline Iron Subjected to Severe Plastic Deformation by Friction / A. I. Yurkova, A. V. Byakova // Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No3. - 03PCSI06
Abstract	By using nanoindentation technique relationship between microstructure and mechanical parameters such as nanohardness Hh, plasticity characteristic A, and Young’s modulus E were found to be dependent on the grain size of the -Fe subjected to severe plastic deformation by friction (SPDF) with argon atmosphere. Unlike fcc-metals in which the decreasing of grain size to 20 nm results in hardness growth accompanied by decreasing the plasticity, it was found the reverse effect in bcc-Fe, i.e. decreasing the grain size from 50 to 20 nm caused the decrease of hardness and increase of plasticity. Moreover, the decrease of Young’s modulus E with decreasing the grain size down to 20 nm was detected in nanoindentation experiments. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35149
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