Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7913344 | Scripta Materialia | 2015 | 4 Pages |
Abstract
Intergranular 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 (â¼5 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.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
H.S. Kitaguchi, M.P. Moody, H.Y. Li, H.E. Evans, M.C. Hardy, S. Lozano-Perez,