Further investigations into alloy induced acidic fluxing

Simple item page
dc.contributor.authorPotter, Andrew
dc.contributor.authorSumner, Joy
dc.contributor.authorSimms, Nigel
dc.date.accessioned2023-06-30T09:35:46Z
dc.date.available2023-06-30T09:35:46Z
dc.date.issued2023-06-04
dc.description.abstractGas turbine materials often feature precipitates containing refractory metals to enhance their mechanical strength. This can make them susceptible to alloy-induced acidic fluxing whereby refractory elements increase the acidity of salt deposits. It is not clear to what degree degradation around alloy precipitates is caused by alloy-induced hot corrosion mechanisms, or the inability to develop a protective scale where precipitates are located. The effect of alloy-induced hot corrosion was isolated from the disruption of the protective-scale formation by adding particles of molybdenum to the 80/20 (Na/K)2SO4 deposit for a ‘deposit re-coat’ style hot corrosion test. The resulting morphologies were compared to samples exposed without the addition of molybdenum. Morphology changes were investigated using scanning electron microscopy with energy-dispersive X-ray mapping. Results show a mix of sulphidation and pitting. The effects of molybdenum additions appear more severe for MarM 509 compared to PWA 1483.en_UK
dc.identifier.citationPotter A, Sumner J, Simms N. (2023) Further investigations into alloy induced acidic fluxing. Materials at High Temperatures, Volume 40, Issue 4, 2023 pp. 338-347en_UK
dc.identifier.issn0960-3409
dc.identifier.urihttps://doi.org/10.1080/09603409.2023.2219877
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19912
dc.language.isoenen_UK
dc.publisherTaylor and Francisen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectType II hot corrosionen_UK
dc.subjectsuperalloysen_UK
dc.subjectalloy-induced acidic fluxingen_UK
dc.subjectmixed mode hot corrosionen_UK
dc.titleFurther investigations into alloy induced acidic fluxingen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
alloy_induced_acidic_fluxing-2023.pdf
Size:
9.68 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)