Causes of Structural Heterogeneity in High-Strength OCTG Tubes and Minimizing Their Impact on Sulfide Stress Corrosion Cracking Resistance

High-strength oil country tubular goods (OCTG) like C110, according to standard API 5CT (yield strength at least 758 MPa), are subject to requirements in terms of mechanical and corrosion properties. In this work, we studied the microstructure of seamless casing tubes made of class C110 high-strengt...

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Autores principales:	Artem Davydov, Andrey Zhitenev, Alexey Alhimenko, Natalya Devyaterikova, Konstantin Laev
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	high-strength OCTG sulfide corrosion cracking structural heterogeneity microstructure Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/4e40cc3fd2be4686868450f4238570cb
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spelling	oai:doaj.org-article:4e40cc3fd2be4686868450f4238570cb2021-11-25T18:22:22ZCauses of Structural Heterogeneity in High-Strength OCTG Tubes and Minimizing Their Impact on Sulfide Stress Corrosion Cracking Resistance10.3390/met111118432075-4701https://doaj.org/article/4e40cc3fd2be4686868450f4238570cb2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1843https://doaj.org/toc/2075-4701High-strength oil country tubular goods (OCTG) like C110, according to standard API 5CT (yield strength at least 758 MPa), are subject to requirements in terms of mechanical and corrosion properties. In this work, we studied the microstructure of seamless casing tubes made of class C110 high-strength steel with a 194.5 mm diameter and 19.7 mm wall thickness, and its influence on sulfide stress corrosion cracking (SSC). Casing tubes were obtained from continuous billets by screw piercing with preliminary quenching and tempering. It was shown that cracking during the tests always begins from the inner surface of the tube. Rough segregation bands were found on the inner tube surface, which occupies about a third of the thickness of the wall. To increase the resistance of 0.3C-Cr-Mn-Mo + 0.15(V + Nb + Ti) steel to SSC, primary recommendations for adjusting the chemical composition, production technology and heat treatment were developed.Artem DavydovAndrey ZhitenevAlexey AlhimenkoNatalya DevyaterikovaKonstantin LaevMDPI AGarticlehigh-strength OCTGsulfide corrosion crackingstructural heterogeneitymicrostructureMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1843, p 1843 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	high-strength OCTG sulfide corrosion cracking structural heterogeneity microstructure Mining engineering. Metallurgy TN1-997
spellingShingle	high-strength OCTG sulfide corrosion cracking structural heterogeneity microstructure Mining engineering. Metallurgy TN1-997 Artem Davydov Andrey Zhitenev Alexey Alhimenko Natalya Devyaterikova Konstantin Laev Causes of Structural Heterogeneity in High-Strength OCTG Tubes and Minimizing Their Impact on Sulfide Stress Corrosion Cracking Resistance
description	High-strength oil country tubular goods (OCTG) like C110, according to standard API 5CT (yield strength at least 758 MPa), are subject to requirements in terms of mechanical and corrosion properties. In this work, we studied the microstructure of seamless casing tubes made of class C110 high-strength steel with a 194.5 mm diameter and 19.7 mm wall thickness, and its influence on sulfide stress corrosion cracking (SSC). Casing tubes were obtained from continuous billets by screw piercing with preliminary quenching and tempering. It was shown that cracking during the tests always begins from the inner surface of the tube. Rough segregation bands were found on the inner tube surface, which occupies about a third of the thickness of the wall. To increase the resistance of 0.3C-Cr-Mn-Mo + 0.15(V + Nb + Ti) steel to SSC, primary recommendations for adjusting the chemical composition, production technology and heat treatment were developed.
format	article
author	Artem Davydov Andrey Zhitenev Alexey Alhimenko Natalya Devyaterikova Konstantin Laev
author_facet	Artem Davydov Andrey Zhitenev Alexey Alhimenko Natalya Devyaterikova Konstantin Laev
author_sort	Artem Davydov
title	Causes of Structural Heterogeneity in High-Strength OCTG Tubes and Minimizing Their Impact on Sulfide Stress Corrosion Cracking Resistance
title_short	Causes of Structural Heterogeneity in High-Strength OCTG Tubes and Minimizing Their Impact on Sulfide Stress Corrosion Cracking Resistance
title_full	Causes of Structural Heterogeneity in High-Strength OCTG Tubes and Minimizing Their Impact on Sulfide Stress Corrosion Cracking Resistance
title_fullStr	Causes of Structural Heterogeneity in High-Strength OCTG Tubes and Minimizing Their Impact on Sulfide Stress Corrosion Cracking Resistance
title_full_unstemmed	Causes of Structural Heterogeneity in High-Strength OCTG Tubes and Minimizing Their Impact on Sulfide Stress Corrosion Cracking Resistance
title_sort	causes of structural heterogeneity in high-strength octg tubes and minimizing their impact on sulfide stress corrosion cracking resistance
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4e40cc3fd2be4686868450f4238570cb
work_keys_str_mv	AT artemdavydov causesofstructuralheterogeneityinhighstrengthoctgtubesandminimizingtheirimpactonsulfidestresscorrosioncrackingresistance AT andreyzhitenev causesofstructuralheterogeneityinhighstrengthoctgtubesandminimizingtheirimpactonsulfidestresscorrosioncrackingresistance AT alexeyalhimenko causesofstructuralheterogeneityinhighstrengthoctgtubesandminimizingtheirimpactonsulfidestresscorrosioncrackingresistance AT natalyadevyaterikova causesofstructuralheterogeneityinhighstrengthoctgtubesandminimizingtheirimpactonsulfidestresscorrosioncrackingresistance AT konstantinlaev causesofstructuralheterogeneityinhighstrengthoctgtubesandminimizingtheirimpactonsulfidestresscorrosioncrackingresistance
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Causes of Structural Heterogeneity in High-Strength OCTG Tubes and Minimizing Their Impact on Sulfide Stress Corrosion Cracking Resistance

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