The Library
Alloying effects on oxidation mechanisms in polycrystalline Co–Ni base superalloys
Tools
Ismail, F. B., Vorontsov, V. A., Lindley, T. C., Hardy, M. C., Dye, D. and Shollock, Barbara A. (2017) Alloying effects on oxidation mechanisms in polycrystalline Co–Ni base superalloys. Corrosion Science, 116 . pp. 44-52. doi:10.1016/j.corsci.2016.12.009 ISSN 0010-938X.
PDF
WRAP_alloying_effects_pollycrystalline_Co-Ni_superalloys_Ismail_Shollock_2017.pdf - Accepted Version - Requires a PDF viewer. Download (15Mb) |
Official URL: http://dx.doi.org/10.1016/j.corsci.2016.12.009
Abstract
Oxidation mechanisms in polycrystalline Co–Ni–Cr–Al–W–Ta alloys were investigated using View the MathML source isotopic tracer analysis in the focused ion-beam secondary ion mass spectrometer (FIB-SIMS). It was found that Al additions favour the formation of a continuous alumina-rich layer, that Cr indirectly improved oxidation resistance and that increasing the Co fraction resulted in poorer oxidation performance. In the alloy containing 15 at.% Cr and 10 at.% Al, the outer scale formed after 200 h oxidation at 800 °C comprised oxides less than 1 μm thick. It is concluded that protective oxide scales can be formed in Co–Ni base superalloys.
Item Type: | Journal Article | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | T Technology > TN Mining engineering. Metallurgy | ||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
Library of Congress Subject Headings (LCSH): | Heat resistant alloys -- Oxidation -- Testing | ||||||||||
Journal or Publication Title: | Corrosion Science | ||||||||||
Publisher: | Pergamon-Elsevier Science Ltd | ||||||||||
ISSN: | 0010-938X | ||||||||||
Official Date: | 15 February 2017 | ||||||||||
Dates: |
|
||||||||||
Volume: | 116 | ||||||||||
Page Range: | pp. 44-52 | ||||||||||
DOI: | 10.1016/j.corsci.2016.12.009 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Date of first compliant deposit: | 30 January 2017 | ||||||||||
Date of first compliant Open Access: | 23 December 2017 | ||||||||||
Funder: | Rolls-Royce Group plc, Imperial College, London, Mara (Organization : Malaysia), Engineering and Physical Sciences Research Council (EPSRC) | ||||||||||
Grant number: | EP/L001748/1, EP/M005607/1 (EPSRC) |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year