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Oxidation behaviour of a next generation polycrystalline Mn containing Ni-based superalloy
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Pedrazzini, S., Child, D. J., West, Geoffrey D., Doak, S. S., Hardy, M. C., Moody, M. P. and Bagot, P. A.J. (2016) Oxidation behaviour of a next generation polycrystalline Mn containing Ni-based superalloy. Scripta Materialia, 113 . pp. 51-54. doi:10.1016/j.scriptamat.2015.10.001 ISSN 1359-6462.
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Official URL: http://dx.doi.org/10.1016/j.scriptamat.2015.10.001
Abstract
A prototype next-generation superalloy containing 1 at.% Mn was oxidised in air at 800 °C for 100 h, and compared with a commercial Ni-based superalloy. The oxide scale consisted of a multi-phase layered structure measured by Atom Probe Tomography as uppermost NiCr2Mn2O4, followed by an inhomogeneous mix of Cr2O3, spinel MnCr2O4 and rutile (Ti,Cr)O2. The Mn did not form a homogeneous, surface passivating oxide layer. Despite this, the alloy showed a 3 × reduction of oxide thickness compared to a commercial polycrystalline Ni-based superalloy.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
Journal or Publication Title: | Scripta Materialia | ||||||||
Publisher: | Pergamon | ||||||||
ISSN: | 1359-6462 | ||||||||
Official Date: | 1 March 2016 | ||||||||
Dates: |
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Volume: | 113 | ||||||||
Page Range: | pp. 51-54 | ||||||||
DOI: | 10.1016/j.scriptamat.2015.10.001 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) |
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