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Structure of Ni3Al Single Crystal after Severe Plastic Deformation

  • O. A. Kuts
  • S. V. StarenchenkoEmail author
  • Yu. V. Solov’eva
  • V. A. Starenchenko
  • V. P. Pilyugin
  • A. I. Ancharov
Physical and Engineering Fundamentals of Microelectronics and Optoelectronics

Abstract

Synchrotron X-ray diffraction study of L12 ordered Ni3Al single crystals was performed. The ultrafine-grained structure resulting from severe plastic deformation was studied. In the initial state, the ordered single crystal is oriented along the [211] compression axis. Along with the ordered phase, there is a small fraction of disordered crystal oriented along the [100] axis. Compression of the samples and subsequent torsion at different angles led to disturbance of the single crystallinity of the sample and a change in the state of the atomic order up to the disappearance of the L12 superstructure.

Keywords

single crystal L12 superstructure superdislocation long-range order synchrotron radiation 

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Notes

Acknowledgments

The X-ray synchrotron measurements were carried out using of the Shared-Use Center “Siberian Synchrotron and Terahertz Radiation Center (SSTRC)” based on VEPP-3/VEPP-4M/NovoFEL of BINP SB RAS. The work was supported by the Ministry of Education and Science of the Russian Federation (project RFMEFI62117X0012).

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© Allerton Press, Inc. 2019

Authors and Affiliations

  • O. A. Kuts
    • 1
  • S. V. Starenchenko
    • 1
    Email author
  • Yu. V. Solov’eva
    • 1
  • V. A. Starenchenko
    • 1
  • V. P. Pilyugin
    • 2
  • A. I. Ancharov
    • 3
    • 4
  1. 1.Tomsk State University of Architecture and BuildingTomskRussia
  2. 2.Mikheev Institute of Metal Physics Ural BranchRussian Academy of SciencesEkaterinburgRussia
  3. 3.Institute of Solid State Chemistry and Mechanochemistry, Siberian BranchRussian Academy of SciencesNovosibirskRussia
  4. 4.Budker Institute of Nuclear Physics, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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