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Normalization of the Cold Shortness of Plate Steel: II. Short-Brittleness Thresholds in Pipe Tests

  • Diagnostics and Mechanical Test Techniques
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Russian Metallurgy (Metally) Aims and scope

Abstract

The following serial curves are obtained for a pipe steel of strength class K65 (Kh80): strength and plasticity curves during tension in the temperature range from–80 to +20°C, fracture energy from drop weight tear test (DWTT) diagrams, and impact toughness KCV curves (from–180 to +20°C). The ductile–brittle transition temperature range determined from the DWTT energy is shown to be higher than that determined from a KCV diagram by 80 K. The KCV–40 criterion is concluded to be more reliable than the DWTT–20 criterion. KCV and DWTT tests are shown to reproduce the crack starting conditions in a pipe, and the resistance of a high-strength pipe steel to extended fracture should be estimated using other criteria.

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Authors and Affiliations

  1. National University of Science and Technology MISiS, Moscow, 119049, Russia

    M. A. Shtremel’ & A. G. Glebov

  2. PAO Gazprom, Moscow, 117997, Russia

    A. B. Arabei

  3. OAO PosNITI, Chelyabinsk, 454139, Russia

    I. Yu. Pyshmintsev

  4. OOO Gazprom VNIIGAZ, Moscow, 115583, Russia

    T. S. Esiev

  5. FGUP RFYaTs-VNIIEF, Sarov, 607188, Russia

    A. I. Abakumov

Authors
  1. M. A. Shtremel’
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  2. A. B. Arabei
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  3. A. G. Glebov
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  4. I. Yu. Pyshmintsev
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  5. T. S. Esiev
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  6. A. I. Abakumov
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Corresponding author

Correspondence to M. A. Shtremel’.

Additional information

Original Russian Text © M.A. Shtremel’, A.B. Arabei, A.G. Glebov, I.Yu. Pyshmintsev, T.S. Esiev, A.I. Abakumov, 2017, published in Deformatsiya i Razrushenie Materialov, 2017, No. 7, pp. 28–39.

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Shtremel’, M.A., Arabei, A.B., Glebov, A.G. et al. Normalization of the Cold Shortness of Plate Steel: II. Short-Brittleness Thresholds in Pipe Tests. Russ. Metall. 2018, 411–420 (2018). https://doi.org/10.1134/S003602951804016X

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  • DOI: https://doi.org/10.1134/S003602951804016X

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