The microstructure and recrystallization of flow-formed oxide-dispersion-strengthened ferritic alloy: Part II. Recrystallization behavior
| Autor: | U. Miller, A. R. Jones, R.C. Pond, Y. L. Chen |
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| Rok vydání: | 2002 |
| Předmět: |
Materials science
Annealing (metallurgy) Metallurgy Alloy Metal matrix composite Metals and Alloys Oxide Recrystallization (metallurgy) engineering.material Condensed Matter Physics Microstructure chemistry.chemical_compound chemistry Mechanics of Materials Transmission electron microscopy engineering Dynamic recrystallization |
| Zdroj: | Metallurgical and Materials Transactions A. 33:3787-3794 |
| ISSN: | 1543-1940 1073-5623 |
| DOI: | 10.1007/s11661-002-0251-x |
| Popis: | The recrystallization behavior of four PM2000 cold flow-formed tubes deformed to levels ranging from 72 to 92 pct has been investigated. It has been found that coarse, high grain aspect ratio (GAR) hoop-oriented grain structures can be produced in Fe-based oxide dispersion strengthened (ODS) alloy tubing by appropriate combinations of flow-forming and subsequent high-temperature annealing; a flow-forming deformation of 89.6 pct produced the coarsest hoop-oriented grain structures in the present study. In the absence of obvious particle alignment, it has been suggested that the formation of hoop-oriented grain structures may be explained by the anisotropic growth of recrystallizing grains into the aligned, anisotropic deformation cell structure observed in the flow-formed tubes. |
| Databáze: | OpenAIRE |
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