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<p>It is determined that an important peculiarity of a&#xa0;homogenous deformation in the BCC→HCP→BCC transformations of a&#xa0;V-Cr-W-ZrC alloy is the operation of this deformation mode at different structural levels. The formation of multilevel (micro + meso + nano) structural states under these conditions is observed with high density of nanovolumes measuring a&#xa0;few nanometers, high local internal stresses and stored deformation energy. A&#xa0;possibility is demonstrated of a&#xa0;multiple increase of the impact strength of this alloy by a&#xa0;transformation of these nanovolumes into the crystals with discrete low-angle boundaries.</p>

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Multiscale (micro, meso, nano) structural states in the V-Cr-W-ZrC alloy under conditions of homogeneous deformation in the BCC → HCP → BCC transformations

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • A. N. Tyumentsev,
  • I. A. Ditenberg,
  • I. V. Smirnov,
  • Yu. P. Pinzhin,
  • K. V. Grinyaev,
  • V. M. Chernov

摘要

It is determined that an important peculiarity of a homogenous deformation in the BCC→HCP→BCC transformations of a V-Cr-W-ZrC alloy is the operation of this deformation mode at different structural levels. The formation of multilevel (micro + meso + nano) structural states under these conditions is observed with high density of nanovolumes measuring a few nanometers, high local internal stresses and stored deformation energy. A possibility is demonstrated of a multiple increase of the impact strength of this alloy by a transformation of these nanovolumes into the crystals with discrete low-angle boundaries.