Improvement of Low-Alloy Pipe Steel Sulfide Stress Cracking Resistance
- Authors: Kholodnyi A.A.1, Kuznechenko Y.S.1, Matrosov Y.I.1, Il’ichev M.V.2, Yusupov D.I.2
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Affiliations:
- FGUP I. P.Bardin TsNIIchermet
- FGBUN Joint High Temperature Institute, Russian Academy of Sciences
- Issue: Vol 63, No 3-4 (2019)
- Pages: 376-387
- Section: Article
- URL: https://journal-vniispk.ru/0026-0894/article/view/242813
- DOI: https://doi.org/10.1007/s11015-019-00833-8
- ID: 242813
Cite item
Abstract
The influence of sheet microstructure formed by various thermomechanical processing schedules on sulfide stress cracking (SSC) resistance under uniaxial tension for low-alloy pipe steels grades X42–X65 is studied. A favorable role is established for substitution of a ferritic-pearlitic by a ferritic-bainitic microstructure and improvement of structural component dispersion is established. The favorable effect is facilitated by using high intensity post-deformation cooling from the austenite region. It is shown that segregation bands and non-metallic inclusions in a sheet axial zone do not affect the duration of specimens withstanding SSC, but they can lead to formation of hydrogen cracks (HIC) on a specimen surface that is a defective feature. In order to prevent crack formation in a specimen surface and premature failure it is necessary to lay down high specifications for specimen gauge length and fillet surface quality.
About the authors
A. A. Kholodnyi
FGUP I. P.Bardin TsNIIchermet
Author for correspondence.
Email: kholodnyi.aa@gmail.com
Russian Federation, Moscow
Ya. S. Kuznechenko
FGUP I. P.Bardin TsNIIchermet
Email: kholodnyi.aa@gmail.com
Russian Federation, Moscow
Yu. I. Matrosov
FGUP I. P.Bardin TsNIIchermet
Email: kholodnyi.aa@gmail.com
Russian Federation, Moscow
M. V. Il’ichev
FGBUN Joint High Temperature Institute, Russian Academy of Sciences
Email: kholodnyi.aa@gmail.com
Russian Federation, Moscow
D. I. Yusupov
FGBUN Joint High Temperature Institute, Russian Academy of Sciences
Email: kholodnyi.aa@gmail.com
Russian Federation, Moscow
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