Effects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environment
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/220133 |
Resumo: | Flexible risers are critical equipment for the production of oil and gas in offshore fields around the world. The annulus region may condense acidic water containing H2S exposing the tensile armour steel wires to a sour environment, which may promote sulphide stress cracking (SSC) and/or hydrogen-induced cracking (HIC). This work aims to evaluate through electrochemical and constant displacement tests the effectiveness of thermal spray aluminium (TSA) coating to mitigate SSC and HIC in high strength steel used to manufacture the tensile armour of a flexible riser. Electrochemical tests confirmed the anodic behaviour of the coating against the steel and estimated a service life of 2.5 years. The constant displacement test indicated that the non-coated samples failed by SSC although some cracks were also found in the samples mid-section due to HIC. For Al-coated samples, no signs of SSC and HIC were observed. The TSA coating showed a dual barrier effect, hindering either corrosion of steel or hydrogen up-taking, and neither SSC nor HIC was observed. Samples with a coating defect were cathodically protected and no HIC was observed. |
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Bertoncello, João Carlos BrancherSimoni, LeonardoTagliari, Mariana dos ReisScheid, AdrianoPaes, Marcelo Torres PizaKwietniewski, Carlos Eduardo Fortis2021-04-21T04:27:02Z20200257-8972http://hdl.handle.net/10183/220133001124262Flexible risers are critical equipment for the production of oil and gas in offshore fields around the world. The annulus region may condense acidic water containing H2S exposing the tensile armour steel wires to a sour environment, which may promote sulphide stress cracking (SSC) and/or hydrogen-induced cracking (HIC). This work aims to evaluate through electrochemical and constant displacement tests the effectiveness of thermal spray aluminium (TSA) coating to mitigate SSC and HIC in high strength steel used to manufacture the tensile armour of a flexible riser. Electrochemical tests confirmed the anodic behaviour of the coating against the steel and estimated a service life of 2.5 years. The constant displacement test indicated that the non-coated samples failed by SSC although some cracks were also found in the samples mid-section due to HIC. For Al-coated samples, no signs of SSC and HIC were observed. The TSA coating showed a dual barrier effect, hindering either corrosion of steel or hydrogen up-taking, and neither SSC nor HIC was observed. Samples with a coating defect were cathodically protected and no HIC was observed.application/pdfengSurface and coatings technology. Lausanne. Vol. 399, (Oct. 2020), [Article] 126156, 9 p.Tubos flexíveisRevestimentoAço de alta resistênciaResistência dos materiaisFlexible risersHigh-strength steelThermal spray aluminiumSulphide stress crackingHydrogen-induced crackingEffects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environmentEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001124262.pdf.txt001124262.pdf.txtExtracted Texttext/plain48036http://www.lume.ufrgs.br/bitstream/10183/220133/2/001124262.pdf.txt917a3b489f645424c56874939d6e4f74MD52ORIGINAL001124262.pdfTexto completo (inglês)application/pdf2743159http://www.lume.ufrgs.br/bitstream/10183/220133/1/001124262.pdf35077e82637b97b29eeb4bc8b693dfb4MD5110183/2201332021-05-07 04:52:53.068601oai:www.lume.ufrgs.br:10183/220133Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-07T07:52:53Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Effects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environment |
title |
Effects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environment |
spellingShingle |
Effects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environment Bertoncello, João Carlos Brancher Tubos flexíveis Revestimento Aço de alta resistência Resistência dos materiais Flexible risers High-strength steel Thermal spray aluminium Sulphide stress cracking Hydrogen-induced cracking |
title_short |
Effects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environment |
title_full |
Effects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environment |
title_fullStr |
Effects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environment |
title_full_unstemmed |
Effects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environment |
title_sort |
Effects of thermal spray aluminium coating on SSC and HIC resistance of high strength steel in a sour environment |
author |
Bertoncello, João Carlos Brancher |
author_facet |
Bertoncello, João Carlos Brancher Simoni, Leonardo Tagliari, Mariana dos Reis Scheid, Adriano Paes, Marcelo Torres Piza Kwietniewski, Carlos Eduardo Fortis |
author_role |
author |
author2 |
Simoni, Leonardo Tagliari, Mariana dos Reis Scheid, Adriano Paes, Marcelo Torres Piza Kwietniewski, Carlos Eduardo Fortis |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Bertoncello, João Carlos Brancher Simoni, Leonardo Tagliari, Mariana dos Reis Scheid, Adriano Paes, Marcelo Torres Piza Kwietniewski, Carlos Eduardo Fortis |
dc.subject.por.fl_str_mv |
Tubos flexíveis Revestimento Aço de alta resistência Resistência dos materiais |
topic |
Tubos flexíveis Revestimento Aço de alta resistência Resistência dos materiais Flexible risers High-strength steel Thermal spray aluminium Sulphide stress cracking Hydrogen-induced cracking |
dc.subject.eng.fl_str_mv |
Flexible risers High-strength steel Thermal spray aluminium Sulphide stress cracking Hydrogen-induced cracking |
description |
Flexible risers are critical equipment for the production of oil and gas in offshore fields around the world. The annulus region may condense acidic water containing H2S exposing the tensile armour steel wires to a sour environment, which may promote sulphide stress cracking (SSC) and/or hydrogen-induced cracking (HIC). This work aims to evaluate through electrochemical and constant displacement tests the effectiveness of thermal spray aluminium (TSA) coating to mitigate SSC and HIC in high strength steel used to manufacture the tensile armour of a flexible riser. Electrochemical tests confirmed the anodic behaviour of the coating against the steel and estimated a service life of 2.5 years. The constant displacement test indicated that the non-coated samples failed by SSC although some cracks were also found in the samples mid-section due to HIC. For Al-coated samples, no signs of SSC and HIC were observed. The TSA coating showed a dual barrier effect, hindering either corrosion of steel or hydrogen up-taking, and neither SSC nor HIC was observed. Samples with a coating defect were cathodically protected and no HIC was observed. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2021-04-21T04:27:02Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
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http://hdl.handle.net/10183/220133 |
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0257-8972 |
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001124262 |
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0257-8972 001124262 |
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http://hdl.handle.net/10183/220133 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Surface and coatings technology. Lausanne. Vol. 399, (Oct. 2020), [Article] 126156, 9 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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