Role of Y-Al Oxides During Extended Recovery Process of a Ferritic ODS Alloy
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- 作者：C. Capdevila ; G. Pimentel ; M. M. Aranda ; R. Rementeria ; K. Dawson ; E. Urones-Garrote…
- 刊名：JOM Journal of the Minerals, Metals and Materials Society
- 出版年：2015
- 出版时间：October 2015
- 年：2015
- 卷：67
- 期：10
- 页码：2208-2215
- 全文大小：2,504 KB
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G. Pimentel (1)
M. M. Aranda (1)
R. Rementeria (1)
K. Dawson (2)
E. Urones-Garrote (3)
G. J. Tatlock (2)
M. K. Miller (4)
1. Materalia Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC), Avda. Gregorio del Amo 8, 28040, Madrid, Spain
2. Centre for Materials and Structures, School of Engineering, University of Liverpool, Brownlow Hill, Liverpool, L69 3GH, UK
3. National Centre for Electron Microscopy (CNME), Universidad Complutense de Madrid, Avda. Complutense s/n, 28040, Madrid, Spain
4. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, TN, 37831-6136, USA - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Materials Science
Metallic Materials
Nanotechnology
Crystallography - 出版者：Springer Boston
- ISSN：1543-1851
文摘
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. Finally, atom probe tomography analysis revealed a significant Ti build-up at the grain boundaries that might affect subsequent migration during recrystallization.