Corrosion of potential first stage blade materials in simulated supercritical CO2

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dc.contributor.authorNorman, Boma Phoebe
dc.contributor.authorAl Baroudi, Hisham
dc.contributor.authorPotter, Andrew
dc.contributor.authorMori, Stefano
dc.contributor.authorSimms, Nigel
dc.contributor.authorKulkarni, Anand
dc.contributor.authorSumner, Joy
dc.date.accessioned2023-05-22T12:41:11Z
dc.date.available2023-05-22T12:41:11Z
dc.date.issued2023-05-04
dc.description.abstractGlobal power consumption is predicted to double by 2050, notably driven by the transportation and energy sectors necessitating limitations of emissions. Due to its compact turbomachinery, better thermal efficiency, and simpler layout, supercritical-CO2 cycles have received attention, with numerous variations proposed (either indirect-fired/closed cycles or direct-fired-open cycles). One technical challenge is degradation pathway quantification of turbine materials in sCO2 as selection is crucial to successfully and economically operate new plants. This requires degradation assessment in representative environments simulating the Allam cycle. Laboratory tests were conducted on a first stage turbine blade alloy, CM247, with either an environmentally resistant coating or bond coat/thermal barrier coat at one atmosphere and 800°C, with potential exposure including (O2, H2O, N2, SO2) for up to 1000 h. Weight change and metallographic measurements tracked scale development. Scanning electron microscopy/energy dispersive X-ray spectroscopy studied scales and internal precipitates. Locations of contaminant element in the CO2-rich environment were investigated.en_UK
dc.identifier.citationNorman BP, Al Baroudi H, Potter AN, et al., (2023) Corrosion of potential first stage blade materials in simulated supercritical CO2. Materials at High Temperatures, Volume 40, Issue 4, June 2023, pp. 376-384en_UK
dc.identifier.issn0960-3409
dc.identifier.urihttps://doi.org/10.1080/09603409.2023.2205744
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19687
dc.language.isoenen_UK
dc.publisherTaylor and Francisen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectsCO2en_UK
dc.subjectnickel-based alloyen_UK
dc.subjectAllam cycleen_UK
dc.titleCorrosion of potential first stage blade materials in simulated supercritical CO2en_UK
dc.typeArticleen_UK

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