Comportamiento en fluencia de un material compuesto de matriz metálica Al6061-15 vol % SiCw pulvimetalúrgico
Autor: | Ricardo Fernández, Gaspar González-Doncel, E. García-Alonso |
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Rok vydání: | 2005 |
Předmět: | |
Zdroj: | Revista de Metalurgia. 41:239-243 |
ISSN: | 1988-4222 0034-8570 |
DOI: | 10.3989/revmetalm.2005.v41.iextra.1032 |
Popis: | The creep behavior of a powder metallurgy (PM) Al6061-15 vol % SiC w metal matrix composite has been studied. This behavior has been compared to that of 6061Al cast alloy and 6061Al PM alloy. The creep response of the PM unreinforced alloy is better than that of the cast 6061Al alloy. Similarly, the behavior of the composite is better than that of the PM unreinforced alloy. Two microstructural factors have been considered the responsible ones of this improvement. The first one is the dispersion of Al 2 O 3 oxide particles of nanometric scale. The second one, is the presence of the SiC whisker reinforcement of micrometric scale. Despite the similar strengthening effect, the intrinsic nature of the reinforcing mechanism is, however, different for each type of particle due to the different microstructural scale. |
Databáze: | OpenAIRE |
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