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Partitioning of Ti and kinetic growth predictions on the thermally grown chromia scale of a polycrystalline nickel-based superalloy
File(s)
MMTA_Comms.docx (2.69 MB)
Accepted version
Author(s)
Pedrazzini, S
Rowlands, BS
Turk, A
Parr, IMD
Hardy, MC
Type
Journal Article
Abstract
Titanium is commonly added to nickel superalloys but has a well-documented detrimental effect on oxidation resistance. The present work constitutes the first atomistic-scale quantitative measurements of grain boundary and bulk compositions in the oxide scale of a current generation polycrystalline nickel superalloy performed through atom probe tomography. Titanium was found to be particularly detrimental to oxide scale growth through grain boundary diffusion.
Date Issued
2019-07-01
Date Acceptance
2019-05-01
Citation
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 2019, 50 (7), pp.3024-3029
URI
DOI
ISSN
1073-5623
Publisher
Springer
Start Page
3024
End Page
3029
Journal / Book Title
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume
50
Issue
7
Copyright Statement
© 2019 Springer-Verlag. The final publication is available at Springer via https://doi.org/10.1007/s11661-019-05246-5.
Sponsor
Engineering and Physical Sciences Research Council
Grant Number
EP/M005607/1
Subjects
Materials
0912 Materials Engineering
0306 Physical Chemistry (incl. Structural)
0913 Mechanical Engineering
Publication Status
Published online
Date Publish Online
2019-05-10