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Ultrafine-grained microstructures evolving during severe plastic deformation

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Abstract

The microstructures of ultrafine-grained nanostructured materials developed by severe plastic deformation are widely varied in their grain size and grain-size distribution; grain boundaries and their structures; lattice defects, especially dislocations; point defects; and impurities. All of these features can be influenced by the way severe plastic deformation is applied, and thereby have decisive effects on the physical and mechanical properties of the material. Probably, the most important factors determining microstructure are the imposed stress tensor, the degree and rate of strain, the temperature of deformation, the chemical composition of the deformed material, and the type of crystal lattice, showing that in order to develop specific properties, it is crucial to understand and optimize the microstructure.

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Author information

Authors and Affiliations

  1. the Department of General Physics, Eötvös University Budapest, Hungary

    T. Ungár

  2. the Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, USSR

    I. Alexandrov

  3. the Institute of Materials Physics, University of Vienna, Austria

    M. Zehetbauer

Authors
  1. T. Ungár
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  2. I. Alexandrov
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  3. M. Zehetbauer
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Additional information

For more information, contact T. Ungár, Department of General Physics, Eötvös University Budapest, H-1518, P.O.B. 32, Budapest, Hungary.

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Ungár, T., Alexandrov, I. & Zehetbauer, M. Ultrafine-grained microstructures evolving during severe plastic deformation. JOM 52, 34–36 (2000). https://doi.org/10.1007/s11837-000-0129-6

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  • DOI: https://doi.org/10.1007/s11837-000-0129-6

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