Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel

The effects of temperature on bulk hydrogen concentration and diffusion have been tested with the Devanathan–-Stachurski method. Thus, a model based on hydrogen potential, diffusivity, loading frequency, and hydrostatic stress distribution around crack tips was applied in order to quantify the tempe...

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Detalles Bibliográficos
Autores principales: Xing, Xiao, Zhou, Jiayu, Zhang, Shouxin, Zhang, Hao, Li, Zili, Li, Zhenjun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6416715/
https://www.ncbi.nlm.nih.gov/pubmed/30781386
http://dx.doi.org/10.3390/ma12040585
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author Xing, Xiao
Zhou, Jiayu
Zhang, Shouxin
Zhang, Hao
Li, Zili
Li, Zhenjun
author_facet Xing, Xiao
Zhou, Jiayu
Zhang, Shouxin
Zhang, Hao
Li, Zili
Li, Zhenjun
author_sort Xing, Xiao
collection PubMed
description The effects of temperature on bulk hydrogen concentration and diffusion have been tested with the Devanathan–-Stachurski method. Thus, a model based on hydrogen potential, diffusivity, loading frequency, and hydrostatic stress distribution around crack tips was applied in order to quantify the temperature’s effect. The theoretical model was verified experimentally and confirmed a temperature threshold of 320 K to maximize the crack growth. The model suggests a nanoscale embrittlement mechanism, which is generated by hydrogen atom delivery to the crack tip under fatigue loading, and rationalized the ΔK dependence of traditional models. Hence, this work could be applied to optimize operations that will prolong the life of the pipeline.
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spelling pubmed-64167152019-03-29 Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel Xing, Xiao Zhou, Jiayu Zhang, Shouxin Zhang, Hao Li, Zili Li, Zhenjun Materials (Basel) Article The effects of temperature on bulk hydrogen concentration and diffusion have been tested with the Devanathan–-Stachurski method. Thus, a model based on hydrogen potential, diffusivity, loading frequency, and hydrostatic stress distribution around crack tips was applied in order to quantify the temperature’s effect. The theoretical model was verified experimentally and confirmed a temperature threshold of 320 K to maximize the crack growth. The model suggests a nanoscale embrittlement mechanism, which is generated by hydrogen atom delivery to the crack tip under fatigue loading, and rationalized the ΔK dependence of traditional models. Hence, this work could be applied to optimize operations that will prolong the life of the pipeline. MDPI 2019-02-15 /pmc/articles/PMC6416715/ /pubmed/30781386 http://dx.doi.org/10.3390/ma12040585 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xing, Xiao
Zhou, Jiayu
Zhang, Shouxin
Zhang, Hao
Li, Zili
Li, Zhenjun
Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel
title Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel
title_full Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel
title_fullStr Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel
title_full_unstemmed Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel
title_short Quantification of Temperature Dependence of Hydrogen Embrittlement in Pipeline Steel
title_sort quantification of temperature dependence of hydrogen embrittlement in pipeline steel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6416715/
https://www.ncbi.nlm.nih.gov/pubmed/30781386
http://dx.doi.org/10.3390/ma12040585
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