Fatigue crack initiation and propagation in Cr-Mo Steel hydrogen storage vessels

Research on design for safe life

Jussi Solin, Laurent Briottet, Beatriz Acosta, Paolo Bortot, Jader Furtado, Elisabetta Mecozzi, Randy Dey

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Abstract

International standards and codes dedicated to design of pressure vessels are still unable to competitively ensure safe design and fitness for service of steel vessels for high pressure gaseous hydrogen. Emptying and shallow pressure cycles subject the material to hydrogen enhanced fatigue. A pre-normative project, MATHRYCE under the EU joint research program focused in this subject through material and component testing, analytical work, review of design methodologies and international collaboration. An easy to implement, safe and economically competitive vessel design methodology is targeted. Steps towards this goal were taken by deepening our understanding on hydrogen enhanced fatigue in different kinds of laboratory specimens and real vessels designed for hydrogen service at maximum 45 MPa pressure. This included cyclic pressure testing of artificially notched vessels both in hydrogen and inert environment. The effect of hydrogen pressure, frequency and mechanical loading parameters (AK, Sa) on fatigue crack initiation and propagation was analyzed. Attention was paid on the definition of "initiation" and influence of hydrogen on the relative parts of initiation and propagation on the fatigue life of a component. A good correlation between results with various test types was found. Particularly promising was the match between the measured - and estimated - crack growth rates in laboratory specimens and vessels. This supports our proposal for a safe design procedure based on crack growth and defect tolerant approach. Recommendations for implementation in a new international standard, on how to properly address hydrogen enhanced fatigue based on laboratory tests, were given and will be summarized in this presentation. Our results indicate that crack initiation from inclusions or other small microstructural features is not necessarily affected by hydrogen to a similar extent as crack growth, but when initiated, the remaining life may be short due to fast growth. This is challenging for design and inspection rules to allow economically competitive construction of hydrogen equipment without compromising safety.
Original languageEnglish
Title of host publicationASME 2016 Pressure Vessels and Piping Conference
Subtitle of host publicationMaterials and Fabrication
PublisherAmerican Society of Mechanical Engineers ASME
Number of pages9
Volume6B
ISBN (Print)978-0-7918-5043-5
DOIs
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
EventASME 2016 Pressure Vessels and Piping Conference - Vancouver, Canada
Duration: 17 Jul 201621 Jul 2016

Conference

ConferenceASME 2016 Pressure Vessels and Piping Conference
CountryCanada
CityVancouver
Period17/07/1621/07/16

Fingerprint

Hydrogen storage
Crack initiation
Crack propagation
Hydrogen
Steel
Fatigue of materials
Fatigue cracks
Testing
Pressure vessels
Inspection
Defects

Keywords

  • Steel
  • Design
  • Fatigue cracks
  • Hydrogen storage
  • Vessels

Cite this

Solin, J., Briottet, L., Acosta, B., Bortot, P., Furtado, J., Mecozzi, E., & Dey, R. (2016). Fatigue crack initiation and propagation in Cr-Mo Steel hydrogen storage vessels: Research on design for safe life. In ASME 2016 Pressure Vessels and Piping Conference: Materials and Fabrication (Vol. 6B). [PVP2016-63609] American Society of Mechanical Engineers ASME. https://doi.org/10.1115/PVP2016-63609
Solin, Jussi ; Briottet, Laurent ; Acosta, Beatriz ; Bortot, Paolo ; Furtado, Jader ; Mecozzi, Elisabetta ; Dey, Randy. / Fatigue crack initiation and propagation in Cr-Mo Steel hydrogen storage vessels : Research on design for safe life. ASME 2016 Pressure Vessels and Piping Conference: Materials and Fabrication. Vol. 6B American Society of Mechanical Engineers ASME, 2016.
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Solin, J, Briottet, L, Acosta, B, Bortot, P, Furtado, J, Mecozzi, E & Dey, R 2016, Fatigue crack initiation and propagation in Cr-Mo Steel hydrogen storage vessels: Research on design for safe life. in ASME 2016 Pressure Vessels and Piping Conference: Materials and Fabrication. vol. 6B, PVP2016-63609, American Society of Mechanical Engineers ASME, ASME 2016 Pressure Vessels and Piping Conference, Vancouver, Canada, 17/07/16. https://doi.org/10.1115/PVP2016-63609

Fatigue crack initiation and propagation in Cr-Mo Steel hydrogen storage vessels : Research on design for safe life. / Solin, Jussi; Briottet, Laurent; Acosta, Beatriz; Bortot, Paolo; Furtado, Jader; Mecozzi, Elisabetta; Dey, Randy.

ASME 2016 Pressure Vessels and Piping Conference: Materials and Fabrication. Vol. 6B American Society of Mechanical Engineers ASME, 2016. PVP2016-63609.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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AU - Mecozzi, Elisabetta

AU - Dey, Randy

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N2 - International standards and codes dedicated to design of pressure vessels are still unable to competitively ensure safe design and fitness for service of steel vessels for high pressure gaseous hydrogen. Emptying and shallow pressure cycles subject the material to hydrogen enhanced fatigue. A pre-normative project, MATHRYCE under the EU joint research program focused in this subject through material and component testing, analytical work, review of design methodologies and international collaboration. An easy to implement, safe and economically competitive vessel design methodology is targeted. Steps towards this goal were taken by deepening our understanding on hydrogen enhanced fatigue in different kinds of laboratory specimens and real vessels designed for hydrogen service at maximum 45 MPa pressure. This included cyclic pressure testing of artificially notched vessels both in hydrogen and inert environment. The effect of hydrogen pressure, frequency and mechanical loading parameters (AK, Sa) on fatigue crack initiation and propagation was analyzed. Attention was paid on the definition of "initiation" and influence of hydrogen on the relative parts of initiation and propagation on the fatigue life of a component. A good correlation between results with various test types was found. Particularly promising was the match between the measured - and estimated - crack growth rates in laboratory specimens and vessels. This supports our proposal for a safe design procedure based on crack growth and defect tolerant approach. Recommendations for implementation in a new international standard, on how to properly address hydrogen enhanced fatigue based on laboratory tests, were given and will be summarized in this presentation. Our results indicate that crack initiation from inclusions or other small microstructural features is not necessarily affected by hydrogen to a similar extent as crack growth, but when initiated, the remaining life may be short due to fast growth. This is challenging for design and inspection rules to allow economically competitive construction of hydrogen equipment without compromising safety.

AB - International standards and codes dedicated to design of pressure vessels are still unable to competitively ensure safe design and fitness for service of steel vessels for high pressure gaseous hydrogen. Emptying and shallow pressure cycles subject the material to hydrogen enhanced fatigue. A pre-normative project, MATHRYCE under the EU joint research program focused in this subject through material and component testing, analytical work, review of design methodologies and international collaboration. An easy to implement, safe and economically competitive vessel design methodology is targeted. Steps towards this goal were taken by deepening our understanding on hydrogen enhanced fatigue in different kinds of laboratory specimens and real vessels designed for hydrogen service at maximum 45 MPa pressure. This included cyclic pressure testing of artificially notched vessels both in hydrogen and inert environment. The effect of hydrogen pressure, frequency and mechanical loading parameters (AK, Sa) on fatigue crack initiation and propagation was analyzed. Attention was paid on the definition of "initiation" and influence of hydrogen on the relative parts of initiation and propagation on the fatigue life of a component. A good correlation between results with various test types was found. Particularly promising was the match between the measured - and estimated - crack growth rates in laboratory specimens and vessels. This supports our proposal for a safe design procedure based on crack growth and defect tolerant approach. Recommendations for implementation in a new international standard, on how to properly address hydrogen enhanced fatigue based on laboratory tests, were given and will be summarized in this presentation. Our results indicate that crack initiation from inclusions or other small microstructural features is not necessarily affected by hydrogen to a similar extent as crack growth, but when initiated, the remaining life may be short due to fast growth. This is challenging for design and inspection rules to allow economically competitive construction of hydrogen equipment without compromising safety.

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Solin J, Briottet L, Acosta B, Bortot P, Furtado J, Mecozzi E et al. Fatigue crack initiation and propagation in Cr-Mo Steel hydrogen storage vessels: Research on design for safe life. In ASME 2016 Pressure Vessels and Piping Conference: Materials and Fabrication. Vol. 6B. American Society of Mechanical Engineers ASME. 2016. PVP2016-63609 https://doi.org/10.1115/PVP2016-63609