Email this article The Influence of the Strain Aging on the Mechanical Properties upon Extension in the Metal of X80 Strength Grade Pipes
- Authors: Khotinov V.A.1, Polukhina O.N.1, Selivanova O.V.1, Farber V.M.1
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Affiliations:
- Ural Federal University
- Issue: Vol 10, No 4 (2019)
- Pages: 939-944
- Section: Article
- URL: https://journals.rcsi.science/2075-1133/article/view/208023
- DOI: https://doi.org/10.1134/S2075113319040221
- ID: 208023
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Abstract
The influence of the natural aging for ten years and the subsequent heating to 680°C on the magnitude of the strain aging effect in low-carbon microalloyed 05Mn2Nb grade steel for trunk pipelines of the X80 grade pipes has been studied. A method for the assessment of the strain aging effect by the parameters of the stress–strain curve, namely, strength increment Δσy on the yield plateau, change in the σy/σu ratio, and proportional elongation δp, has been proposed.
About the authors
V. A. Khotinov
Ural Federal University
Author for correspondence.
Email: khotinov@yandex.ru
Russian Federation, Yekaterinburg, 620002
O. N. Polukhina
Ural Federal University
Email: khotinov@yandex.ru
Russian Federation, Yekaterinburg, 620002
O. V. Selivanova
Ural Federal University
Email: khotinov@yandex.ru
Russian Federation, Yekaterinburg, 620002
V. M. Farber
Ural Federal University
Email: khotinov@yandex.ru
Russian Federation, Yekaterinburg, 620002
