The role of replicated service atmosphere on deformation and fracture behaviour of carburised AISI type 316H steel

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

The UK Advanced Gas Cooled nuclear reactor fleet adopted CO2 gas as the heat transfer medium. Over the plant service life carbon diffuses into the stainless steel components as part of the overall oxidation process. This carbon enrichment promotes carbide precipitation and changes overall microstructure, thereby altering temperature deformation and fracture behaviour. Due to difficulties of replicating the high temperature/high pressure CO2 service environment, many tests are conducted under simulated CO2 conditions. We compare the role of a range of surrogate atmospheres on steel test specimens to one which failed in service to establish the influence of testing atmosphere on creep deformation and fracture characteristics.

Original languageEnglish
Title of host publicationAdvances in Fracture and Damage Mechanics XVIII
EditorsS.A. Paipetis, Ferri M.H. Aliabadi
PublisherTrans Tech Publications Ltd
Pages318-323
Number of pages6
ISBN (Print)9783035715866
DOIs
Publication statusPublished - 1 Jan 2020
Event18th International Conference on Fracture and Damage Mechanics, FDM 2019 - Rhodes, Greece
Duration: 16 Sep 201918 Sep 2019

Publication series

NameKey Engineering Materials
Volume827 KEM
ISSN (Print)1013-9826

Conference

Conference18th International Conference on Fracture and Damage Mechanics, FDM 2019
CountryGreece
CityRhodes
Period16/09/1918/09/19

Keywords

  • Austenitic stainless steel
  • Carburisation
  • Cracking
  • Oxidation
  • Thermal aging

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  • Cite this

    Warren, A. D., Heard, P. J., Flewitt, P. E. J., & Martin, T. L. (2020). The role of replicated service atmosphere on deformation and fracture behaviour of carburised AISI type 316H steel. In S. A. Paipetis, & F. M. H. Aliabadi (Eds.), Advances in Fracture and Damage Mechanics XVIII (pp. 318-323). (Key Engineering Materials; Vol. 827 KEM). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.827.318