Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel

In this paper, the effects of dispersed 3~10 nm NbC precipitates on hydrogen diffusion in X80 pipeline steel were investigated by means of high resolution transmission electron microscopy (HRTEM), electrochemical hydrogen permeation, and thermal desorption spectroscopy (TDS). The relationship betwee...

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Detalles Bibliográficos
Autores principales: Cui, Qiaoqi, Wu, Junsheng, Xie, Donghan, Wu, Xiaoguang, Huang, Yunhua, Li, Xiaogang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5551764/
https://www.ncbi.nlm.nih.gov/pubmed/28773079
http://dx.doi.org/10.3390/ma10070721
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author Cui, Qiaoqi
Wu, Junsheng
Xie, Donghan
Wu, Xiaoguang
Huang, Yunhua
Li, Xiaogang
author_facet Cui, Qiaoqi
Wu, Junsheng
Xie, Donghan
Wu, Xiaoguang
Huang, Yunhua
Li, Xiaogang
author_sort Cui, Qiaoqi
collection PubMed
description In this paper, the effects of dispersed 3~10 nm NbC precipitates on hydrogen diffusion in X80 pipeline steel were investigated by means of high resolution transmission electron microscopy (HRTEM), electrochemical hydrogen permeation, and thermal desorption spectroscopy (TDS). The relationship between hydrogen diffusion and temperature was determined for Nb-free X80 and 0.055 wt% Nb X80 steel. The temperature dividing reversible and irreversible traps was measured, and the quantity of hydrogen captured by different traps was calculated. Three types of hydrogen trap were designed and applied in the test, and the results revealed that irreversible hydrogen traps formed by nanosized and coherent NbC precipitates markedly hindered hydrogen diffusion, and prolonged breakthrough time in Nb-bearing X80 steel.
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spelling pubmed-55517642017-08-11 Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel Cui, Qiaoqi Wu, Junsheng Xie, Donghan Wu, Xiaoguang Huang, Yunhua Li, Xiaogang Materials (Basel) Article In this paper, the effects of dispersed 3~10 nm NbC precipitates on hydrogen diffusion in X80 pipeline steel were investigated by means of high resolution transmission electron microscopy (HRTEM), electrochemical hydrogen permeation, and thermal desorption spectroscopy (TDS). The relationship between hydrogen diffusion and temperature was determined for Nb-free X80 and 0.055 wt% Nb X80 steel. The temperature dividing reversible and irreversible traps was measured, and the quantity of hydrogen captured by different traps was calculated. Three types of hydrogen trap were designed and applied in the test, and the results revealed that irreversible hydrogen traps formed by nanosized and coherent NbC precipitates markedly hindered hydrogen diffusion, and prolonged breakthrough time in Nb-bearing X80 steel. MDPI 2017-06-28 /pmc/articles/PMC5551764/ /pubmed/28773079 http://dx.doi.org/10.3390/ma10070721 Text en © 2017 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
Cui, Qiaoqi
Wu, Junsheng
Xie, Donghan
Wu, Xiaoguang
Huang, Yunhua
Li, Xiaogang
Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel
title Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel
title_full Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel
title_fullStr Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel
title_full_unstemmed Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel
title_short Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel
title_sort effect of nanosized nbc precipitates on hydrogen diffusion in x80 pipeline steel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5551764/
https://www.ncbi.nlm.nih.gov/pubmed/28773079
http://dx.doi.org/10.3390/ma10070721
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