Chlorine-induced stress corrosion cracking of single crystal superalloys at 550 °C

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dc.contributor.authorDuarte Martinez, Fabian
dc.contributor.authorDawson, Karl
dc.contributor.authorTatlock, Gordon
dc.contributor.authorLeggett, J.
dc.contributor.authorGibson, G.
dc.contributor.authorMason-Flucke, J. C.
dc.contributor.authorNicholls, John
dc.contributor.authorSyed, Adnan
dc.contributor.authorMorar, N.
dc.contributor.authorGray, Simon
dc.date.accessioned2024-08-07T14:26:35Z
dc.date.available2024-08-07T14:26:35Z
dc.date.freetoread2024-08-07
dc.date.issued2024-08-05
dc.description.abstractThis study has investigated the effect of NaCl and different gaseous environments on the stress corrosion cracking susceptibility of CMSX-4 at 550 °C. The presence of SOx leads to the rapid dissociation of NaCl into Na2SO4 and the release Cl2 and HCl, which then trigger an active oxidation mechanism and stress corrosion cracking. The incubation time for crack initiation at 690 MPa and in the presence of a sulphur containing environment is 10 min. A working hypothesis is that stress corrosion cracking occurs due to the hydrogen released at the oxide/alloy interface when metal chlorides are formed; however, this hypothesis needs to be further explored.
dc.description.journalNameHigh Temperature Corrosion of Materials
dc.description.sponsorshipRolls Royce
dc.identifier.citationDuarte Martinez F, Dawson K, Tatlock G, et al., (2024) Chlorine-induced stress corrosion cracking of single crystal superalloys at 550° C. High Temperature Corrosion of Materials, Volume 101, pp. 951-960
dc.identifier.eissn2731-8400
dc.identifier.issn2731-8397
dc.identifier.urihttps://doi.org/10.1007/s11085-024-10282-7
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/22749
dc.language.isoen
dc.publisherSpringer
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectStress corrosion cracking
dc.subjectCMSX-4
dc.subjectHydrogen
dc.titleChlorine-induced stress corrosion cracking of single crystal superalloys at 550 °C
dc.typeArticle
dcterms.dateAccepted2024-07-21

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