The effect of trepanning speed of laser drilled acute angled cooling holes on the high temperature low cycle corrosion fatigue performance of CMSX-4 at 850°C

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dc.contributor.authorMorar, N.
dc.contributor.authorRoy, Rajkumar
dc.contributor.authorMehnen, Jorn
dc.contributor.authorNicholls, John R.
dc.contributor.authorGray, Simon
dc.date.accessioned2017-05-10T09:42:40Z
dc.date.available2017-05-10T09:42:40Z
dc.date.issued2017-05-04
dc.description.abstractThe effect of laser trepanning speed and, as a result, recast layer thickness on the high temperature corrosion fatigue behaviour of CMSX-4 superalloy acute angled holes was investigated. The experimental test results show that an increasing laser drilling speed caused a reduction in corrosion fatigue life by 30-50% at 850°C, under low cycle fatigue regime. This reduction was found to correlate directly with the recast layer thickness and surface anomalies within the recast layer produced during the laser drilling process. Corrosion had a smaller effect on the overall life of the laser drilled specimens under the conditions tested. The results presented show that laser trepanning speedis influencial in limiting the life performance of laser drilled components in service.en_UK
dc.identifier.citationMorar N, Roy R, Mehnen J, et al., (2017) The effect of trepanning speed of laser drilled acute angled cooling holes on the high temperature low cycle corrosion fatigue performance of CMSX-4 at 850°C. International Journal of Fatigue, Volume 102, September 2017, pp. 112-120en_UK
dc.identifier.issn0142-1123
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijfatigue.2017.04.017
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11868
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectHot corrosionen_UK
dc.subjectlow cycle fatigueen_UK
dc.subjectcorrosion fatigueen_UK
dc.subjectlaser drillingen_UK
dc.subjectrecast layeren_UK
dc.subjectCMSX-4en_UK
dc.titleThe effect of trepanning speed of laser drilled acute angled cooling holes on the high temperature low cycle corrosion fatigue performance of CMSX-4 at 850°Cen_UK
dc.typeArticleen_UK

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