Measurement and evaluation of co-existing crack propagation in single-crystal superalloys in hot corrosion fatigue environments

Simple item page
dc.contributor.authorBrooking, L.
dc.contributor.authorFerguson, C.
dc.contributor.authorMason-Flucke, J.
dc.contributor.authorGibson, G.
dc.contributor.authorLeggett, J.
dc.contributor.authorPalmer, I.
dc.contributor.authorNicholls, John R.
dc.contributor.authorGray, Simon
dc.date.accessioned2021-10-04T14:47:22Z
dc.date.available2021-10-04T14:47:22Z
dc.date.issued2021-08-29
dc.description.abstractGas turbines blades are required to operate at high temperatures while being subjected to stress and corrosive environments. These demanding conditions have led to the need to better understand the interactions between corrosion and loading in order to improve lifing algorithms used for service interval predictions. A new crack growth measurement technique involving direct current potential difference (PD) has been developed for use in these harsh conditions. A good correlation between PD signal and crack area has been achieved. Estimations of the crack depth have been made based on fracture surface imaging, these experimentally measured crack depth propagation rates have been compared with Paris law predictions. A stress intensity factor (SIF) interaction between multiple cracks was found, where the SIF is enhanced when cracks become close. It was found that both the fatigue cycle rate and the crack shape appear to influence the SIF magnitude and the crack depth at which specimens fail, or initiate into crack propagation which is consistent with fatigue.en_UK
dc.identifier.citationBrooking L, Ferguson C, Mason-Flucke J, et al., (2020) Measurement and evaluation of co-existing crack propagation in single-crystal superalloys in hot corrosion fatigue environments. In: 14th International Symposium on Superalloys (Superalloys 2020), Seven Springs Pa, USAen_UK
dc.identifier.isbn978-3-030-51833-2
dc.identifier.urihttps://doi.org/10.1007/978-3-030-51834-9_75
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/17135
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectSC superalloysen_UK
dc.subjectCrack growthen_UK
dc.subjectPotential differenceen_UK
dc.subjectCorrosive environmentsen_UK
dc.subjectStress intensityen_UK
dc.titleMeasurement and evaluation of co-existing crack propagation in single-crystal superalloys in hot corrosion fatigue environmentsen_UK
dc.typeConference paperen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
co-existing_crack_propagation-2021.pdf
Size:
1.15 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 (SATM)