Abstract
Fatigue initiation resistance has been determined on API 5L X52 gas pipe steel. Tests have been performed on Roman Tile (RT) specimen and fatigue initiation was detected by acoustic emission. A comparison between specimens electrolytically charged with hydrogen and specimens without hydrogen absorption were made and it has been noted that fatigue initiation time is reduced of about 3 times when hydrogen embrittlement occurs. It has been proposed to use the concept of Notch Stress Intensity Factor as parameter to describe the fatigue initiation process. Due to the fact that hydrogen is localised in area with high hydrostatic pressure, definitions of local effective stress and distance have been modified when hydrogen is absorbed. This modification can be explained by existence of a ductile-brittle transition with hydrogen concentration. The fatigue initiation resistance curve allows that to determine a threshold for large number of cycles of fatigue non initiation. This parameter introduced in a Failure Assessment Diagram (FAD) provides supplementary information about defect nocivity in gas pipes: a non-critical defect can be detected as dormant or not dormant defect i.e., as non propagating defect. (author)
Capelle, J;
Gilgert, J;
Pluvinage, G
[1]
- LaBPS - Ecole Nationale d'Ingenieurs de Metz et Universite Paul Verlaine Metz, Ile du Saulcy, 57045 Metz (France)
Citation Formats
Capelle, J, Gilgert, J, and Pluvinage, G.
A fatigue initiation parameter for gas pipe steel submitted to hydrogen absorption.
United Kingdom: N. p.,
2010.
Web.
doi:10.1016/J.IJHYDENE.2009.10.063.
Capelle, J, Gilgert, J, & Pluvinage, G.
A fatigue initiation parameter for gas pipe steel submitted to hydrogen absorption.
United Kingdom.
https://doi.org/10.1016/J.IJHYDENE.2009.10.063
Capelle, J, Gilgert, J, and Pluvinage, G.
2010.
"A fatigue initiation parameter for gas pipe steel submitted to hydrogen absorption."
United Kingdom.
https://doi.org/10.1016/J.IJHYDENE.2009.10.063.
@misc{etde_21252820,
title = {A fatigue initiation parameter for gas pipe steel submitted to hydrogen absorption}
author = {Capelle, J, Gilgert, J, and Pluvinage, G}
abstractNote = {Fatigue initiation resistance has been determined on API 5L X52 gas pipe steel. Tests have been performed on Roman Tile (RT) specimen and fatigue initiation was detected by acoustic emission. A comparison between specimens electrolytically charged with hydrogen and specimens without hydrogen absorption were made and it has been noted that fatigue initiation time is reduced of about 3 times when hydrogen embrittlement occurs. It has been proposed to use the concept of Notch Stress Intensity Factor as parameter to describe the fatigue initiation process. Due to the fact that hydrogen is localised in area with high hydrostatic pressure, definitions of local effective stress and distance have been modified when hydrogen is absorbed. This modification can be explained by existence of a ductile-brittle transition with hydrogen concentration. The fatigue initiation resistance curve allows that to determine a threshold for large number of cycles of fatigue non initiation. This parameter introduced in a Failure Assessment Diagram (FAD) provides supplementary information about defect nocivity in gas pipes: a non-critical defect can be detected as dormant or not dormant defect i.e., as non propagating defect. (author)}
doi = {10.1016/J.IJHYDENE.2009.10.063}
journal = []
issue = {2}
volume = {35}
place = {United Kingdom}
year = {2010}
month = {Jan}
}
title = {A fatigue initiation parameter for gas pipe steel submitted to hydrogen absorption}
author = {Capelle, J, Gilgert, J, and Pluvinage, G}
abstractNote = {Fatigue initiation resistance has been determined on API 5L X52 gas pipe steel. Tests have been performed on Roman Tile (RT) specimen and fatigue initiation was detected by acoustic emission. A comparison between specimens electrolytically charged with hydrogen and specimens without hydrogen absorption were made and it has been noted that fatigue initiation time is reduced of about 3 times when hydrogen embrittlement occurs. It has been proposed to use the concept of Notch Stress Intensity Factor as parameter to describe the fatigue initiation process. Due to the fact that hydrogen is localised in area with high hydrostatic pressure, definitions of local effective stress and distance have been modified when hydrogen is absorbed. This modification can be explained by existence of a ductile-brittle transition with hydrogen concentration. The fatigue initiation resistance curve allows that to determine a threshold for large number of cycles of fatigue non initiation. This parameter introduced in a Failure Assessment Diagram (FAD) provides supplementary information about defect nocivity in gas pipes: a non-critical defect can be detected as dormant or not dormant defect i.e., as non propagating defect. (author)}
doi = {10.1016/J.IJHYDENE.2009.10.063}
journal = []
issue = {2}
volume = {35}
place = {United Kingdom}
year = {2010}
month = {Jan}
}