Back to Search
Start Over
Correlative atom-probe tomography and transmission electron microscope study of a chemical transition in a spinel on an oxidized nickel-based superalloy
- Source :
-
Scripta Materialia . Jun2013, Vol. 68 Issue 11, p909-912. 4p. - Publication Year :
- 2013
-
Abstract
- Complex thermally grown oxides (TGOs) are formed on a single-crystal Ni-based superalloy due to a large fraction of alloying elements. Combining atom-probe tomography and transmission electron microscopy analyses, the three-dimensional elemental distributions of metal oxides of the spinel and refractory metal-oxide regions are presented. A spinel-type oxide, Ni(Cr,Al)2O4, is formed with a crystallographic orientation relationship with the alloy substrate, which decomposes into other oxides. The sequence of oxides observed in the TGO are NiO→Cr2O3 →Ta2O5 →NiTaO4, NiTa2O6 →Ni(Cr,Al)2O4 →Al2O3. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13596462
- Volume :
- 68
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Scripta Materialia
- Publication Type :
- Academic Journal
- Accession number :
- 86422171
- Full Text :
- https://doi.org/10.1016/j.scriptamat.2013.02.025