liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Chromia layer growth on a Ni-based superalloy: Sub-parabolic kinetics and the role of titanium
University of Birmingham, England .
University of Birmingham, England .
University of Birmingham, England .
Rolls Royce Plc, England .
Show others and affiliations
2013 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 75, 58-66 p.Article in journal (Refereed) Published
Abstract [en]

Oxidation of the Ni-based superalloy RR1000 has been undertaken in air over the temperature range 600-900 degrees C for times up to 5000 h. The surface oxide consisted of a protective Ti-doped chromia layer but with rutile forming on its outer surface. Sub-surface oxidation of Al and Ti also occurred. The thickening kinetics of the chromia layer were sub-parabolic with initial rates around two orders of magnitude higher than expected for Ti-free chromia. This enhancement and the sub-parabolic kinetics are accounted for by Ti-doping of the chromia layer. Over time the enhancement reduced because of Ti-depletion in the alloy.

Place, publisher, year, edition, pages
Elsevier , 2013. Vol. 75, 58-66 p.
Keyword [en]
Superalloys, Oxidation, Selective Oxidation
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-97430DOI: 10.1016/j.corsci.2013.05.016ISI: 000323469800006OAI: diva2:647900

Funding Agencies|Engineering and Physical Sciences Research Council||Rolls-Royce plc||

Available from: 2013-09-12 Created: 2013-09-12 Last updated: 2014-09-11

Open Access in DiVA

fulltext(3132 kB)319 downloads
File information
File name FULLTEXT01.pdfFile size 3132 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Stekovic, Svjetlana
By organisation
Engineering MaterialsThe Institute of Technology
In the same journal
Corrosion Science
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 319 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 55 hits
ReferencesLink to record
Permanent link

Direct link