Effect of hydrogen on fatigue-crack growth of a ferritic-pearlitic low carbon steel

Akihide Nagao; Mohsen Dadfarnia; Shuai Wang; Petros Sofronis; Kelly E. Nygren; Ian M. Robertson

doi:10.1115/PVP2017-66273

Effect of hydrogen on fatigue-crack growth of a ferritic-pearlitic low carbon steel

Akihide Nagao, Mohsen Dadfarnia, Shuai Wang, Petros Sofronis, Kelly E. Nygren, Ian M. Robertson

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English
Title of host publication	Materials and Fabrication
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791858004
DOIs	https://doi.org/10.1115/PVP2017-66273
Publication status	Published - Jan 1 2017
Externally published	Yes
Event	ASME 2017 Pressure Vessels and Piping Conference, PVP 2017 - Waikoloa, United States Duration: Jul 16 2017 → Jul 20 2017

Publication series

Name	American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume	6B-2017
ISSN (Print)	0277-027X

Other

Other	ASME 2017 Pressure Vessels and Piping Conference, PVP 2017
Country	United States
City	Waikoloa
Period	7/16/17 → 7/20/17

All Science Journal Classification (ASJC) codes

Mechanical Engineering

Access to Document

10.1115/PVP2017-66273

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Cite this

Nagao, A., Dadfarnia, M., Wang, S., Sofronis, P., Nygren, K. E., & Robertson, I. M. (2017). Effect of hydrogen on fatigue-crack growth of a ferritic-pearlitic low carbon steel. In Materials and Fabrication (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 6B-2017). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP2017-66273

Effect of hydrogen on fatigue-crack growth of a ferritic-pearlitic low carbon steel. / Nagao, Akihide; Dadfarnia, Mohsen; Wang, Shuai; Sofronis, Petros; Nygren, Kelly E.; Robertson, Ian M.

Materials and Fabrication. American Society of Mechanical Engineers (ASME), 2017. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 6B-2017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nagao, A, Dadfarnia, M, Wang, S, Sofronis, P, Nygren, KE & Robertson, IM 2017, Effect of hydrogen on fatigue-crack growth of a ferritic-pearlitic low carbon steel. in Materials and Fabrication. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, vol. 6B-2017, American Society of Mechanical Engineers (ASME), ASME 2017 Pressure Vessels and Piping Conference, PVP 2017, Waikoloa, United States, 7/16/17. https://doi.org/10.1115/PVP2017-66273

Nagao A, Dadfarnia M, Wang S, Sofronis P, Nygren KE, Robertson IM. Effect of hydrogen on fatigue-crack growth of a ferritic-pearlitic low carbon steel. In Materials and Fabrication. American Society of Mechanical Engineers (ASME). 2017. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP). https://doi.org/10.1115/PVP2017-66273

Nagao, Akihide ; Dadfarnia, Mohsen ; Wang, Shuai ; Sofronis, Petros ; Nygren, Kelly E. ; Robertson, Ian M. / Effect of hydrogen on fatigue-crack growth of a ferritic-pearlitic low carbon steel. Materials and Fabrication. American Society of Mechanical Engineers (ASME), 2017. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP).

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abstract = "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.",

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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.

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