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Influence of homogenization on the processing map for hot working of as-cast Mg-2Zn-1Mn alloy

Sivakesavam, O and Prasad, YVRK (2003) Influence of homogenization on the processing map for hot working of as-cast Mg-2Zn-1Mn alloy. In: Zeitschrift für Metallkunde, 94 (11). pp. 1255-1259.

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Official URL: http://cat.inist.fr/?aModele=afficheN&cpsidt=15279...

Abstract

Processing maps have been developed for hot deformation of Mg-2Zn-1Mn alloy in as-cast condition and after homogenization with a view to evaluate the influence of homogenization. Hot compression data in the temperature range 300-500degreesC and strain rate range 0.001-100 s(-1) were used for generating the processing map. In the map for the as-cast alloy the domain of dynamic recrystallization occurring, at 450degreesC and 0.1 s(-1) has merged with another domain occurring at 500degreesC and 0.001 s(-1) representing grain boundary cracking. The latter domain is eliminated by homogenization and the dynamic recrystallization domain expanded with a higher peak efficiency occurring at 500 degreesC and 0.05 s(-1). The flow localization occurring at strain rates higher than 5 s(-1) is unaffected by homogenization.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Carl Hanser Verlag.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 29 Aug 2011 06:41
Last Modified: 29 Aug 2011 06:41
URI: http://eprints.iisc.ernet.in/id/eprint/40125

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