Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1564876 | Journal of Nuclear Materials | 2015 | 9 Pages |
Abstract
A series of bulk nanostructured Fe-Ni-Zr oxide-dispersion-strengthened (ODS) alloys were synthesized using high energy mechanical alloying and consolidated using high temperature equal channel angular extrusion. The resultant microstructures are composed of nano/ultrafine or micrometer-sized grains with larger intermetallic precipitates and small Zr oxide clusters (<10 nm diameter, measured and confirmed by atom probe tomography). The ODS alloys possess elevated compression properties, e.g., 1.2 and 2.4 GPa compressive yield stress at room temperature for samples consolidated at 700 °C and 1000 °C, respectively. This work highlights the relationship between processing, microstructure, and properties for this class of ferritic ODS alloys.
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Authors
K.A. Darling, M. Kapoor, H. Kotan, B.C. Hornbuckle, S.D. Walck, G.B. Thompson, M.A. Tschopp, L.J. Kecskes,