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Formación de la Aleación Zn-21.6%Al-2.0%Cu por Pulvimetalurgia: Efecto del Lubricante en las Briquetas

Authors: Aragón, José A;

Formación de la Aleación Zn-21.6%Al-2.0%Cu por Pulvimetalurgia: Efecto del Lubricante en las Briquetas

Abstract

En este trabajo se presenta la elaboracion de la aleacion Zn-21.6%Al-2.0%Cu (porcentajes en masa), por un metodo de metalurgia de polvos y se analiza el efecto de distintos lubricantes, usados en las briquetas. Se elaboraron mezclas de polvos de Zn, Al y Cu con acetona, cera y acido estearico como lubricantes, y se compactaron uniaxialmente a una presion de 77.4 MPa. Las briquetas se sinterizaron bajo un flujo de argon y en intervalos de 15 minutos a 357 °C. Los materiales fueron caracterizados estructuralmente con microscopio optico, ensayos de microdureza Vickers, dureza Rockwell F y difraccion de rayos X. El acido estearico y la cera funcionan similarmente como lubricantes y la acetona retarda la formacion de la aleacion, pero causa mayores durezas, luego del sinterizado. La aleacion se forma totalmente cuando el lubricante es cera y se sinteriza mas de 45 minutos. La rapidez de formacion de la aleacion depende del tipo de lubricante en las briquetas.

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Keywords

powder metallurgy, sintering, aleación Zn-21.6%Al-2.0%Cu, Zn-21.6%Al-2.0%Cu alloy, sinterizado, metalurgia de polvos, caracterización estructural, structural characterization

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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gold