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Modeling of Grain Subdivision during Severe Plastic Deformation by VPSC Method Combined with Disclination Analysis

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Nanostructured Materials by High-Pressure Severe Plastic Deformation

Part of the book series: NATO Science Series ((NAII,volume 212))

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Abstract

Microstructure development during severe plastic deformation by simple shear is modeled using a combination of the viscoplastic self consistent (VPSC) method and a disclination model. Strain incompatibilities between a homogeneous effective medium and a grain are calculated by VPSC. These are assumed to result in an accumulation of disclinations in the junctions of a grain that are relaxed by a growth of low-angle dislocation boundaries from the junctions. Predicted misorientation distributions between subgrains and their parent grains agree semi-quantitatively with experimental misorientation distributions for geometrically necessary boundaries. The texture after 100% simple shear was found to be insensitive to the presence of subgrains with misorientations less than 15°.

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Author information

Authors and Affiliations

  1. Ufa State Aviation Technical University, Ufa, 450000

    A. A. Nazarov, N. A. Enikeev & I. V. Alexandrov

  2. Inst. for Metals Superplasticity Problems, Russian Academy of Sciences, Ufa, 450001

    A. A. Nazarov

  3. Ioffe Physico-Technical Inst, Russian Academy of Sciences, St. Petersburg, 194021

    A. E. Romanov & T. S. Orlova

  4. Los Alamos National Laboratory, Los Alamos, NM, 87545, USA

    I. J. Beyerlein

Authors
  1. A. A. Nazarov
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  2. N. A. Enikeev
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  3. A. E. Romanov
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  4. T. S. Orlova
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  5. I. V. Alexandrov
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  6. I. J. Beyerlein
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Editor information

Editors and Affiliations

  1. Los Alamos National Laboratory, NM, USA

    Yuntian T. Zhu

  2. Donetsk Physics & Technology Institute, Ukrainian Academy of Sciences, Donetsk, Ukraine

    Viktor Varyukhin

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© 2006 Springer

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Nazarov, A.A., Enikeev, N.A., Romanov, A.E., Orlova, T.S., Alexandrov, I.V., Beyerlein, I.J. (2006). Modeling of Grain Subdivision during Severe Plastic Deformation by VPSC Method Combined with Disclination Analysis. In: Zhu, Y.T., Varyukhin, V. (eds) Nanostructured Materials by High-Pressure Severe Plastic Deformation. NATO Science Series, vol 212. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3923-9_8

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