- Abstract:
- The oxidation behaviour at 950°C of a prototype nickel-based single crystal superalloy containing ~15 wt%Cr is studied, with and without silicon alloying. It is demonstrated that the alloy is a marginal alumina former, with further alloying by Si promoting the formation of a continuous, protective alumina scale. Transmission electron microscopy reveals that out-growing alumina forms during the early stages of oxidation. The presence of silicon within the alumina is detected using atom probe tomography.
- Publication status:
- Published
- Publisher copy:
- 10.3184/096034012X13335334078005
-
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- Journal:
- MATERIALS AT HIGH TEMPERATURES
- Volume:
- 29
- Issue:
- 3
- Pages:
- 272-278
- Publication date:
- 2012-08-05
- DOI:
- ISSN:
-
0960-3409
- URN:
-
uuid:ec7781b1-7876-4908-a46a-5ced8e74a319
- Source identifiers:
-
369719
- Local pid:
- pubs:369719
- Language:
- English
- Keywords:
- Copyright date:
- 2012
Journal article
Characterisation of oxide scale formation on a new single crystal superalloy for power generation applications
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