Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steels

In this paper, the response of a high-strength and a mid-strength steel in response to hydrogen embrittlement processes are analyzed by means of the quasi-non-destructive test known as the small punch test (SPT). The SPT has been successfully employed in the evaluation of tensile properties, creep b...

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Autores: Arroyo Martínez, Borja|||0000-0003-3037-652X, Álvarez Laso, José Alberto|||0000-0003-0670-5100, Lacalle Calderón, Roberto|||0000-0003-0964-0234, Uribe Bastero, Cristina, García, T.E., Rodríguez, C.
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/35176
Acceso en línea:https://hdl.handle.net/10902/35176
Access Level:acceso abierto
Palabra clave:Small punch test
Hydrogen environmental assisted cracking
Slow strain rate tests
Medium and high strength steels
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spelling Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steelsArroyo Martínez, Borja|||0000-0003-3037-652X Álvarez Laso, José Alberto|||0000-0003-0670-5100Lacalle Calderón, Roberto|||0000-0003-0964-0234Uribe Bastero, CristinaGarcía, T.E.Rodríguez, C.Small punch testHydrogen environmental assisted crackingSlow strain rate testsMedium and high strength steelsIn this paper, the response of a high-strength and a mid-strength steel in response to hydrogen embrittlement processes are analyzed by means of the quasi-non-destructive test known as the small punch test (SPT). The SPT has been successfully employed in the evaluation of tensile properties, creep behavior, fracture, and some recent research proposes that it might be applied for the determination of mechanical properties in brittle scenarios.In a first stage, standardized hydrogen embrittlement and stress corrosion cracking testing techniques have been applied, confirming some of their disadvantages, and the SPT has been proposed as a simple and economic alternative when it is not possible to carry them out. It is recommended to use the SPT under static load, with the specimen pre-charged and submerged in the environment during the whole test. The study is completed with hydrogen content measurements.Based on the experimental results of slow strain rate tests (SSRT), and the SPT performed under static load in embrittlement environments, it was proved that the SPT punch displacement versus time to rupture curve has the same typology as the usual creep curves. Inspired on SPT creep methodologies, a simple and effective way to correlate the results of SPT and conventional tests in embrittlement situations is proposed. It is based on matching the same breaking times in both types of tests when performed under the same environment to obtain the rupture stress from the static loads applied in SPT tests. Subsequently, it is proved that for the aforementioned situations, the numerical value of the deformation rate (uniaxial test) and the punch rate (SPT) that take place during these two tests will be alike for similar rupture times. Finally it is pointed that when the uniaxial slow strain rate test maximum stress and the SPT static load have a similar numerical value, the deformation rate (SSRT) and the punch rate (SPT) will be related, thus providing a simple way to estimate deformation rates using SPT instead of conventional SSRT tests.The authors of this paper would like to thank the Spanish Ministry of Economy and Competitivity for the support received for the development of the research projects MAT2011-28796, named "Metodologías para la caracterización de materiales metálicos en condiciones ambientales adversas mediante ensayos Small Punch", and MAT2014-58738, named "Efecto del hidrógeno en aceros de alta y media resistencia: optimización de los métodos de caracterización para la evaluación de la integridad estructural".Elsevier ScienceUniversidad de Cantabria20172017-04-13journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/35176Materials Science and Engineering: A, 2017, 691, 180-194reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/351762026-06-02T12:39:31Z
dc.title.none.fl_str_mv Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steels
title Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steels
spellingShingle Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steels
Arroyo Martínez, Borja|||0000-0003-3037-652X
Small punch test
Hydrogen environmental assisted cracking
Slow strain rate tests
Medium and high strength steels
title_short Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steels
title_full Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steels
title_fullStr Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steels
title_full_unstemmed Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steels
title_sort Analysis of key factors of hydrogen environmental assisted cracking evaluation by small punch test on medium and high strength steels
dc.creator.none.fl_str_mv Arroyo Martínez, Borja|||0000-0003-3037-652X
Álvarez Laso, José Alberto|||0000-0003-0670-5100
Lacalle Calderón, Roberto|||0000-0003-0964-0234
Uribe Bastero, Cristina
García, T.E.
Rodríguez, C.
author Arroyo Martínez, Borja|||0000-0003-3037-652X
author_facet Arroyo Martínez, Borja|||0000-0003-3037-652X
Álvarez Laso, José Alberto|||0000-0003-0670-5100
Lacalle Calderón, Roberto|||0000-0003-0964-0234
Uribe Bastero, Cristina
García, T.E.
Rodríguez, C.
author_role author
author2 Álvarez Laso, José Alberto|||0000-0003-0670-5100
Lacalle Calderón, Roberto|||0000-0003-0964-0234
Uribe Bastero, Cristina
García, T.E.
Rodríguez, C.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Small punch test
Hydrogen environmental assisted cracking
Slow strain rate tests
Medium and high strength steels
topic Small punch test
Hydrogen environmental assisted cracking
Slow strain rate tests
Medium and high strength steels
description In this paper, the response of a high-strength and a mid-strength steel in response to hydrogen embrittlement processes are analyzed by means of the quasi-non-destructive test known as the small punch test (SPT). The SPT has been successfully employed in the evaluation of tensile properties, creep behavior, fracture, and some recent research proposes that it might be applied for the determination of mechanical properties in brittle scenarios.In a first stage, standardized hydrogen embrittlement and stress corrosion cracking testing techniques have been applied, confirming some of their disadvantages, and the SPT has been proposed as a simple and economic alternative when it is not possible to carry them out. It is recommended to use the SPT under static load, with the specimen pre-charged and submerged in the environment during the whole test. The study is completed with hydrogen content measurements.Based on the experimental results of slow strain rate tests (SSRT), and the SPT performed under static load in embrittlement environments, it was proved that the SPT punch displacement versus time to rupture curve has the same typology as the usual creep curves. Inspired on SPT creep methodologies, a simple and effective way to correlate the results of SPT and conventional tests in embrittlement situations is proposed. It is based on matching the same breaking times in both types of tests when performed under the same environment to obtain the rupture stress from the static loads applied in SPT tests. Subsequently, it is proved that for the aforementioned situations, the numerical value of the deformation rate (uniaxial test) and the punch rate (SPT) that take place during these two tests will be alike for similar rupture times. Finally it is pointed that when the uniaxial slow strain rate test maximum stress and the SPT static load have a similar numerical value, the deformation rate (SSRT) and the punch rate (SPT) will be related, thus providing a simple way to estimate deformation rates using SPT instead of conventional SSRT tests.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-04-13
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/35176
url https://hdl.handle.net/10902/35176
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv Materials Science and Engineering: A, 2017, 691, 180-194
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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