Effect of NaCl and SO2 on the stress corrosion cracking of CMSX-4 at 550°C

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dc.contributor.authorDuarte Martinez, Fabian
dc.contributor.authorSyed, Adnan
dc.contributor.authorDawson, Karl
dc.contributor.authorTatlock, G. J.
dc.contributor.authorMorar, N. I.
dc.contributor.authorKothari, M.
dc.contributor.authorTang, C.
dc.contributor.authorLeggett, J.
dc.contributor.authorMason-Flucke, J. C.
dc.contributor.authorGibson, G.
dc.contributor.authorNicholls, Nicholls, John R.
dc.contributor.authorGray, Simon
dc.contributor.authorCastelluccio, Gustavo M.
dc.date.accessioned2023-05-18T11:47:50Z
dc.date.available2023-05-18T11:47:50Z
dc.date.issued2023-05-01
dc.description.abstractIn the pursuit of more efficient gas turbine engines, components are required to operate for longer times at elevated temperatures. This increased time in service, together with a complex loading regime, can expose the material to environmental attack. This work has demonstrated that the interaction of stress, NaCl and a sulphur-containing environment is critical to cause crack initiation in the early stages of the exposure and accelerated corrosion rates in CMSX-4 at 550°C. The effect of having small concentrations of moisture in the gaseous environment or as water crystallisation in the salt is still to be investigated. A working hypothesis is that the interaction of alkali chlorides with a sulphur-containing atmosphere is the trigger to a self-sustaining cycle where metal chloride formation, vaporisation and oxidation lead to high amounts of hydrogen injection in a rapid manner and, therefore, hydrogen embrittlement.en_UK
dc.identifier.citationDuarte Martinez F, Syed A, Dawson K, et al., (2023) Effect of NaCl and SO2 on the stress corrosion cracking of CMSX-4 at 550°C. Materials at High Temperatures, Volume 40, Issue 4, August 2023, pp. 283-295en_UK
dc.identifier.issn0960-3409
dc.identifier.urihttps://doi.org/10.1080/09603409.2023.2205760
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19669
dc.language.isoenen_UK
dc.publisherTaylor and Francisen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectcmsx-4en_UK
dc.subjectc-ringen_UK
dc.subjecthot corrosionen_UK
dc.subjectfactsage 8.1en_UK
dc.titleEffect of NaCl and SO2 on the stress corrosion cracking of CMSX-4 at 550°Cen_UK
dc.typeArticleen_UK

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