Skip to Main content Skip to Navigation
Journal articles

Microtomographic assessment of damage in P91 and E911 steels after long-term creep

Abstract : Two flat hollow cylinders made of martensitic 9 wt.% Cr steels were creep deformed under in-service conditions typical of steam pipes at fossil-fuel fired power plants. Damage in the tubes was assessed through synchrotron X-ray microtomography by evaluating the shape, size and spatial-distribution of voids. The analysis of the size distribution of non-coalesced voids suggested that void growth is controlled by the plasticity constrained diffusional mechanism, a hypothesis verified by micromechanical simulations. A much higher void density was found in steel grade P91 compared to E911.
Document type :
Journal articles
Complete list of metadatas

https://hal-emse.ccsd.cnrs.fr/emse-01066931
Contributor : Géraldine Fournier-Moulin <>
Submitted on : Monday, September 22, 2014 - 4:09:24 PM
Last modification on : Wednesday, June 24, 2020 - 4:19:23 PM

Identifiers

Collections

Citation

Loïc Renversade, Herbert Ruoff, Karl Maile, Federico Sket, András Borbély. Microtomographic assessment of damage in P91 and E911 steels after long-term creep. International Journal of Materials Research, 2014, 105 (7), pp.621-627. ⟨10.3139/146.111056⟩. ⟨emse-01066931⟩

Share

Metrics

Record views

136