Tensile and creep properties of an oxide dispersion-strengthened ferritic steel
| Autor: | Naoyuki Hashimoto, Philip J. Maziasz, Kazuya Miyahara, Ronald L. Klueh, Ick Soo Kim, Edward A. Kenik, L. Heatherly, David T. Hoelzer |
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| Rok vydání: | 2002 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Metallurgy Oxide Atom probe Microstructure law.invention chemistry.chemical_compound Nuclear Energy and Engineering Optical microscope chemistry Creep law Ultimate tensile strength General Materials Science Dispersion (chemistry) Field ion microscope |
| Zdroj: | Journal of Nuclear Materials. :773-777 |
| ISSN: | 0022-3115 |
| Popis: | The tensile and creep properties of two oxide dispersion-strengthened (ODS) steels with nominal compositions of Fe–12Cr–0.25Y2O3 (designated 12Y1) and Fe–12Cr–2.5W–0.4Ti–0.25Y2O3 (12YWT) were investigated. Optical microscopy, transmission electron microscopy, and atom probe field ion microscopy studies indicated that the 12YWT contained a high density of extremely fine Y–Ti–O clusters, compared to the much larger oxide particles in the 12Y1. The fine dispersion of particles gave the 12YWT better tensile and creep properties compared to commercial ODS alloys and ferritic/martensitic steels that would be replaced by the new ODS steel. |
| Databáze: | OpenAIRE |
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