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Abstract
ntergranular oxide intrusions formed ahead of a crack in a Ni-based superalloy at 650 °C have been examined using three-dimensional atom probe tomography. Of two scans undertaken, a thin (∼5 nm) alumina layer was observed next to the alloy substrate in one, overlaid by a chromia layer. In the second, chromia penetrated to the alloy interface. The chromia layer contained Ti in solution as well as discrete particles of TiO2.
Original language | English |
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Pages (from-to) | 41-44 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 97 |
Early online date | 8 Nov 2014 |
DOIs | |
Publication status | Published - 1 Mar 2015 |
Keywords
- Superalloys
- Cracks
- Oxide intrusions
- High-temperature oxidation
- Atom probe tomography
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Dive into the research topics of 'An atom probe tomography study of the oxide-metal interface of an oxide intrusion ahead of a crack in a polycrystalline Ni-based superalloy'. Together they form a unique fingerprint.Projects
- 1 Finished
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Structural Metallic Systems For Advanced Gas Turbine Applications
Bowen, P., Chiu, Y. & Reed, R.
Engineering & Physical Science Research Council
1/10/09 → 30/09/14
Project: Research Councils