High temperature microstructural stability and recrystallization mechanisms in 14YWT alloys

Date

2018-04-01

Author

Aydoğan Güngör, Eda
Takajo, S.
Vogel, S. C.
Maloy, S. A.

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In-situ neutron diffraction experiments were performed on room temperature compressed 14YWT nanostructured ferritic alloys at 1100 degrees C and 1150 degrees C to understand their thermally activated static recrystallization mechanisms. Existence of a high density of Y-Ti-O rich nano-oxides ( and {112} texture components during annealing, in contrast to the conventional recrystallization textures in body centered cubic alloys. Furthermore, nano-oxide size, shape, density and distribution are considerably different in unrecrystallized and abnormally grown grains. Transmission electron microscopy analysis shows that oxide particles having a size between 5 and 30 nm play a critical role for recrystallization mechanisms in 14YWT nanostructured ferritic alloys.

Subject Keywords

Electronic, Optical and Magnetic Materials, Polymers and Plastics, Metals and Alloys, Ceramics and Composites

URI

https://hdl.handle.net/11511/69920

Journal

ACTA MATERIALIA

DOI

https://doi.org/10.1016/j.actamat.2018.02.006

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

E. Aydoğan Güngör, S. Takajo, S. C. Vogel, and S. A. Maloy, “High temperature microstructural stability and recrystallization mechanisms in 14YWT alloys,” ACTA MATERIALIA, pp. 467–481, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/69920.