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Structure and mechanical properties of iron subjected to surface severe plastic deformation by attrition: II. Mechanical properties of nano- and submicrocrystalline iron

  • Physical Foundations of Strength and Plasticity
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Russian Metallurgy (Metally) Aims and scope

Abstract

Depth-sensing indentation is used to study the effect of grain refinement to submicro- and nanograins on the mechanical properties (hardness, plasticity, Young’s modulus) of armco iron subjected to severe plastic deformation by attrition in argon. In contrast to fcc metals, where the hardness increases and the plasticity decreases as the grain size decreases to 20 nm, the hardness of bcc iron decreases from 5.8 to 3.7 GPa and plasticity δ A increases from 0.82 to 0.87 as the grain size decreases from 50 to 20 nm.

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Authors and Affiliations

  1. Kiev Polytechnical Institute, National Technical University of Ukraine, pr. Peremogi 37, Kiev, 03056, Ukraine

    A. I. Yurkova & A. V. Byakova

  2. Institute of Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev, 03680, Ukraine

    A. I. Yurkova, Yu. V. Milman & A. V. Byakova

Authors
  1. A. I. Yurkova
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  2. Yu. V. Milman
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  3. A. V. Byakova
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Correspondence to A. I. Yurkova.

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Original Russian Text © A.I. Yurkova, Yu.V. Milman, A.V. Byakova, 2009, published in Deformatsiya i Razrushenie Materialov, 2009, No. 2, pp. 2–8.

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Yurkova, A.I., Milman, Y.V. & Byakova, A.V. Structure and mechanical properties of iron subjected to surface severe plastic deformation by attrition: II. Mechanical properties of nano- and submicrocrystalline iron. Russ. Metall. 2010, 258–263 (2010). https://doi.org/10.1134/S0036029510040026

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  • DOI: https://doi.org/10.1134/S0036029510040026

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