Fracture toughness, fatigue crack propagation and creep rupture behaviour in thick section weldments of 3Cr-Mo pressure-vessel steels developed for high-temperature/high-pressure hydrogen service
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 17-26 |
Journal / Publication | High Temperature Technology |
Volume | 7 |
Issue number | 1 |
Publication status | Published - 1989 |
Externally published | Yes |
Link(s)
Abstract
Both plane-strain fracture toughness and creep rupture lives were found to be relatively unchanged in the weldment microstructures compared with parent plate, and they were affected little by environmental damage (hydrogen attack) induced by the prior hydrogen exposure. Creep properties, however, were found to be sensitive to post-weld heat treatment. Similarly, fatigue crack growth properties were only marginally affected by prior hydrogen-attack damage, except for tests on weld metal where, compared to the undamaged microstructures, growth rates below approximately 10-6 m cycle-1 were accelerated by up to an order of magnitude and fatigue thresholds decreased by around 25%.
Research Area(s)
- Fracture toughness, Fatigue crack propagation, Creep rupture behaviour, 3Cr-Mo pressure-vessel steel
Citation Format(s)
Fracture toughness, fatigue crack propagation and creep rupture behaviour in thick section weldments of 3Cr-Mo pressure-vessel steels developed for high-temperature/high-pressure hydrogen service. / Spencer, P. N.; Dauskardt, R. H.; Parker, E. R. et al.
In: High Temperature Technology, Vol. 7, No. 1, 1989, p. 17-26.
In: High Temperature Technology, Vol. 7, No. 1, 1989, p. 17-26.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review