TY - GEN
T1 - Effect of hydrogen on fatigue-crack growth of a ferritic-pearlitic low carbon steel
AU - Nagao, Akihide
AU - Dadfarnia, Mohsen
AU - Wang, Shuai
AU - Sofronis, Petros
AU - Nygren, Kelly E.
AU - Robertson, Ian M.
N1 - Publisher Copyright:
Copyright © 2017 ASME.
PY - 2017
Y1 - 2017
N2 - The effect of external high-pressure H2 gas on fatigue-crack growth behavior has been examined using a ferritic-pearlitic low carbon steel. The presence of hydrogen accelerates the crack growth rate by ∼13 times compared to the uncharged state and shifts the fracture surface morphology from ductile striations to a mixture of "flat" and "quasi-cleavage" features. The common feature found in the microstructure immediately beneath the hydrogen-induced fracture surface is enhanced plasticity in terms of refined dislocation cell structures and dense dislocation bands.
AB - The effect of external high-pressure H2 gas on fatigue-crack growth behavior has been examined using a ferritic-pearlitic low carbon steel. The presence of hydrogen accelerates the crack growth rate by ∼13 times compared to the uncharged state and shifts the fracture surface morphology from ductile striations to a mixture of "flat" and "quasi-cleavage" features. The common feature found in the microstructure immediately beneath the hydrogen-induced fracture surface is enhanced plasticity in terms of refined dislocation cell structures and dense dislocation bands.
UR - https://www.scopus.com/pages/publications/85034103863
UR - https://www.scopus.com/pages/publications/85034103863#tab=citedBy
U2 - 10.1115/PVP2017-66273
DO - 10.1115/PVP2017-66273
M3 - Conference contribution
AN - SCOPUS:85034103863
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
BT - Materials and Fabrication
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2017 Pressure Vessels and Piping Conference, PVP 2017
Y2 - 16 July 2017 through 20 July 2017
ER -