Normalization of the Cold Shortness of Plate Steel: II. Short-Brittleness Thresholds in Pipe Tests
- Authors: Shtremel’ M.A.1, Arabei A.B.2, Glebov A.G.1, Pyshmintsev I.Y.3, Esiev T.S.4, Abakumov A.I.5
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Affiliations:
- National University of Science and Technology MISiS
- PAO Gazprom
- OAO PosNITI
- OOO Gazprom VNIIGAZ
- FGUP RFYaTs-VNIIEF
- Issue: Vol 2018, No 4 (2018)
- Pages: 411-420
- Section: Diagnostics and Mechanical Test Techniques
- URL: https://journals.rcsi.science/0036-0295/article/view/172504
- DOI: https://doi.org/10.1134/S003602951804016X
- ID: 172504
Cite item
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.
About the authors
M. A. Shtremel’
National University of Science and Technology MISiS
Author for correspondence.
Email: str@mfp.misis.ru
Russian Federation, Moscow, 119049
A. B. Arabei
PAO Gazprom
Email: str@mfp.misis.ru
Russian Federation, Moscow, 117997
A. G. Glebov
National University of Science and Technology MISiS
Email: str@mfp.misis.ru
Russian Federation, Moscow, 119049
I. Yu. Pyshmintsev
OAO PosNITI
Email: str@mfp.misis.ru
Russian Federation, Chelyabinsk, 454139
T. S. Esiev
OOO Gazprom VNIIGAZ
Email: str@mfp.misis.ru
Russian Federation, Moscow, 115583
A. I. Abakumov
FGUP RFYaTs-VNIIEF
Email: str@mfp.misis.ru
Russian Federation, Sarov, 607188