Role of Y-Al oxides during extended recovery process of a ferritic ODS alloy
- National Center for Metallurgical Research (CENIM-CSIC), Madrid (Spain)
- Univ. of Liverpool, Liverpool (United Kingdom)
- Univ. Complutense de Madrid, Madrid (Spain)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
The microstructural stability of Y-Al oxides during the recrystallization of Fe-Cr-Al oxide dispersion strengthened alloy is studied in this work. The goal is to determine the specific distribution pattern of oxides depending where they are located: in the matrix or at the grain boundaries. It was concluded that those located at the grain boundaries yielded a faster coarsening than the ones in the matrix, although no significant differences in composition and/or crystal structure were observed. However, the recrystallization heat treatment leads to the dissolution of the Y2O3 and its combination with Al to form the YAlO3 perovskite oxide particles process, mainly located at the grain boundaries. Lastly, atom probe tomography analysis revealed a significant Ti build-up at the grain boundaries that might affect subsequent migration during recrystallization.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1235816
- Journal Information:
- JOM. Journal of the Minerals, Metals & Materials Society, Vol. 67, Issue 10; ISSN 1047-4838
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Retracted article: Microstructure characterisation and tensile properties of 18Cr-4.5Al-0.3Zr- oxide dispersion strengthened steel
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journal | January 2019 |
Hot Deformation Behavior and Microstructure Evolution of 14Cr ODS Steel
|
journal | June 2018 |
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