Publication: Analytical characterization of secondary phases and void distributions in an ultrafine-grained ODS Fe─14Cr model alloy
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2011-10
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Elsevier
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Two model Fe─14Cr alloys, one containing 0.3 wt.% of Y₂O₃ particles, were fabricated by mechanical alloying of Fe and Cr elemental powders under a He atmosphere. They were subsequently consolidated and thermomechanically treated to produce ultra-fine grained materials. Cr-carbides and oxides were found in both alloys. The oxide dispersion-strengthened (ODS) alloy also contained a fine dispersion of nanoparticles, some of them having a Y─O rich core and a Cr-rich shell. Nanometric sized voids were found in both materials, often attached to secondary phases, dislocations and grain boundaries. Their sizes were significantly smaller in the ODS alloy.
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Proceedings of the: The 14th International Conference on Fusion Reactor Materials (ICFRM-14) was held at the Sapporo Convention Center in Sapporo, Japan from 7 to 12 September 2009.
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Journal of Nuclear Materials 417 (2011) 1-3 October, pp. 217-220