Effect of Hydrogen in Mixed Gases on the Mechanical Properties of Steels—Theoretical Background and Review of Test Results

This review summarizes the thermodynamics of hydrogen (H<sub>2</sub>) in mixed gases of nitrogen (N<sub>2</sub>), methane (CH<sub>4</sub>) and natural gas, with a special focus on hydrogen fugacity. A compilation and interpretation of literature results for mechan...

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Autores principales: Thorsten Michler, Christian Elsässer, Ken Wackermann, Frank Schweizer
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/cf2740c268624f13ab48b1089b48cc00
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spelling oai:doaj.org-article:cf2740c268624f13ab48b1089b48cc002021-11-25T18:22:22ZEffect of Hydrogen in Mixed Gases on the Mechanical Properties of Steels—Theoretical Background and Review of Test Results10.3390/met111118472075-4701https://doaj.org/article/cf2740c268624f13ab48b1089b48cc002021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1847https://doaj.org/toc/2075-4701This review summarizes the thermodynamics of hydrogen (H<sub>2</sub>) in mixed gases of nitrogen (N<sub>2</sub>), methane (CH<sub>4</sub>) and natural gas, with a special focus on hydrogen fugacity. A compilation and interpretation of literature results for mechanical properties of steels as a function of hydrogen fugacity implies that test results obtained in gas mixtures and in pure hydrogen, both at the same fugacity, are equivalent. However, this needs to be verified experimentally. Among the test methods reviewed here, fatigue crack growth testing is the most sensitive method to measure hydrogen effects in pipeline steels followed by fracture toughness testing and tensile testing.Thorsten MichlerChristian ElsässerKen WackermannFrank SchweizerMDPI AGarticlehydrogen embrittlementhydrogen pressurefugacitypipeline steelsgas mixturesMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1847, p 1847 (2021)
institution DOAJ
collection DOAJ
language EN
topic hydrogen embrittlement
hydrogen pressure
fugacity
pipeline steels
gas mixtures
Mining engineering. Metallurgy
TN1-997
spellingShingle hydrogen embrittlement
hydrogen pressure
fugacity
pipeline steels
gas mixtures
Mining engineering. Metallurgy
TN1-997
Thorsten Michler
Christian Elsässer
Ken Wackermann
Frank Schweizer
Effect of Hydrogen in Mixed Gases on the Mechanical Properties of Steels—Theoretical Background and Review of Test Results
description This review summarizes the thermodynamics of hydrogen (H<sub>2</sub>) in mixed gases of nitrogen (N<sub>2</sub>), methane (CH<sub>4</sub>) and natural gas, with a special focus on hydrogen fugacity. A compilation and interpretation of literature results for mechanical properties of steels as a function of hydrogen fugacity implies that test results obtained in gas mixtures and in pure hydrogen, both at the same fugacity, are equivalent. However, this needs to be verified experimentally. Among the test methods reviewed here, fatigue crack growth testing is the most sensitive method to measure hydrogen effects in pipeline steels followed by fracture toughness testing and tensile testing.
format article
author Thorsten Michler
Christian Elsässer
Ken Wackermann
Frank Schweizer
author_facet Thorsten Michler
Christian Elsässer
Ken Wackermann
Frank Schweizer
author_sort Thorsten Michler
title Effect of Hydrogen in Mixed Gases on the Mechanical Properties of Steels—Theoretical Background and Review of Test Results
title_short Effect of Hydrogen in Mixed Gases on the Mechanical Properties of Steels—Theoretical Background and Review of Test Results
title_full Effect of Hydrogen in Mixed Gases on the Mechanical Properties of Steels—Theoretical Background and Review of Test Results
title_fullStr Effect of Hydrogen in Mixed Gases on the Mechanical Properties of Steels—Theoretical Background and Review of Test Results
title_full_unstemmed Effect of Hydrogen in Mixed Gases on the Mechanical Properties of Steels—Theoretical Background and Review of Test Results
title_sort effect of hydrogen in mixed gases on the mechanical properties of steels—theoretical background and review of test results
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/cf2740c268624f13ab48b1089b48cc00
work_keys_str_mv AT thorstenmichler effectofhydrogeninmixedgasesonthemechanicalpropertiesofsteelstheoreticalbackgroundandreviewoftestresults
AT christianelsasser effectofhydrogeninmixedgasesonthemechanicalpropertiesofsteelstheoreticalbackgroundandreviewoftestresults
AT kenwackermann effectofhydrogeninmixedgasesonthemechanicalpropertiesofsteelstheoreticalbackgroundandreviewoftestresults
AT frankschweizer effectofhydrogeninmixedgasesonthemechanicalpropertiesofsteelstheoreticalbackgroundandreviewoftestresults
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