The paper studies the plastic flow behavior of tensile specimens of ultrafine-grained steel 08G2B, which exhibits the strain aging effect, using the digital image correlation method, electron orientation microscopy, and microindentation. Standard flat tensile specimens were tested with a constant strain rate in the initial state (after controlled rolling) and controlled rolling + heating to 680°C for 30 min followed by air cooling. The appearance of Chernov-Luders bands in the specimen was observed at the strain degree δ * 3%. Texture analysis and microidentification were carried out in different regions outside, at the front, and inside the Chernov-Luders band. It was shown that the plastic flow in the Chernov-Luders band leads to an increase in the microhardness and the appearance of new texture components such as {112}{111} and {001}{110}.
Translated title of the contributionPlastic flow in a Chernov-Luders band in ultrafine-grained steel 08G2B
Original languageRussian
Pages (from-to)75-82
Number of pages8
JournalФизическая мезомеханика
Volume22
Issue number4
DOIs
Publication statusPublished - 2019

    GRNTI

  • 29.00.00 PHYSICS

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ID: 10498214