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Tensile Deformation and Fracture Behavior of API-5L X70 Line Pipe Steel
Thermo-mechanical controlled processing (TMCP) is employed to obtain the required level of mechanical properties of contemporary HSLA steel plates utilized for gas and oil pipeline production. The strength and crack resistance of pipeline steels are mainly determined by its microstructure and crysta...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8780482/ https://www.ncbi.nlm.nih.gov/pubmed/35057219 http://dx.doi.org/10.3390/ma15020501 |
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author | Lobanov, Mikhail L. Khotinov, Vladislav A. Urtsev, Vladimir N. Danilov, Sergey V. Urtsev, Nikolay V. Platov, Sergey I. Stepanov, Stepan I. |
author_facet | Lobanov, Mikhail L. Khotinov, Vladislav A. Urtsev, Vladimir N. Danilov, Sergey V. Urtsev, Nikolay V. Platov, Sergey I. Stepanov, Stepan I. |
author_sort | Lobanov, Mikhail L. |
collection | PubMed |
description | Thermo-mechanical controlled processing (TMCP) is employed to obtain the required level of mechanical properties of contemporary HSLA steel plates utilized for gas and oil pipeline production. The strength and crack resistance of pipeline steels are mainly determined by its microstructure and crystallographic texture. In this study, the influence of the structural and textural states of industrially produced API-5L X70-X80 pipeline steels on tensile mechanical properties was analyzed. TMCP routes with different hot rolling temperatures and cooling rates were employed. The texture of steel was assessed using the Taylor factor, which was calculated based on electron backscatter diffraction (EBSD). The decrease in rolling temperature resulted in the sharper texture characterized by {001} planes banding (cleavage planes in the bcc lattice) parallel to rolling direction. The tensile deformation behavior at the stage of necking was determined by the crystallographic and morphological texture of the material and demonstrated significant anisotropy. Rupture of all investigated samples was accompanied by the development of splitting on the fracture surface. The splitting was localized in the rolling plane similar to the splitting in standard Charpy tests of pipeline steels. |
format | Online Article Text |
id | pubmed-8780482 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87804822022-01-22 Tensile Deformation and Fracture Behavior of API-5L X70 Line Pipe Steel Lobanov, Mikhail L. Khotinov, Vladislav A. Urtsev, Vladimir N. Danilov, Sergey V. Urtsev, Nikolay V. Platov, Sergey I. Stepanov, Stepan I. Materials (Basel) Article Thermo-mechanical controlled processing (TMCP) is employed to obtain the required level of mechanical properties of contemporary HSLA steel plates utilized for gas and oil pipeline production. The strength and crack resistance of pipeline steels are mainly determined by its microstructure and crystallographic texture. In this study, the influence of the structural and textural states of industrially produced API-5L X70-X80 pipeline steels on tensile mechanical properties was analyzed. TMCP routes with different hot rolling temperatures and cooling rates were employed. The texture of steel was assessed using the Taylor factor, which was calculated based on electron backscatter diffraction (EBSD). The decrease in rolling temperature resulted in the sharper texture characterized by {001} planes banding (cleavage planes in the bcc lattice) parallel to rolling direction. The tensile deformation behavior at the stage of necking was determined by the crystallographic and morphological texture of the material and demonstrated significant anisotropy. Rupture of all investigated samples was accompanied by the development of splitting on the fracture surface. The splitting was localized in the rolling plane similar to the splitting in standard Charpy tests of pipeline steels. MDPI 2022-01-10 /pmc/articles/PMC8780482/ /pubmed/35057219 http://dx.doi.org/10.3390/ma15020501 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Lobanov, Mikhail L. Khotinov, Vladislav A. Urtsev, Vladimir N. Danilov, Sergey V. Urtsev, Nikolay V. Platov, Sergey I. Stepanov, Stepan I. Tensile Deformation and Fracture Behavior of API-5L X70 Line Pipe Steel |
title | Tensile Deformation and Fracture Behavior of API-5L X70 Line Pipe Steel |
title_full | Tensile Deformation and Fracture Behavior of API-5L X70 Line Pipe Steel |
title_fullStr | Tensile Deformation and Fracture Behavior of API-5L X70 Line Pipe Steel |
title_full_unstemmed | Tensile Deformation and Fracture Behavior of API-5L X70 Line Pipe Steel |
title_short | Tensile Deformation and Fracture Behavior of API-5L X70 Line Pipe Steel |
title_sort | tensile deformation and fracture behavior of api-5l x70 line pipe steel |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8780482/ https://www.ncbi.nlm.nih.gov/pubmed/35057219 http://dx.doi.org/10.3390/ma15020501 |
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