Effect of homogenization on the hot deformation behavior of cast AZ31 magnesium alloy

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)3723-3730
Journal / PublicationMaterials and Design
Volume30
Issue number9
Publication statusPublished - Oct 2009

Abstract

The changes in the hot working behavior of as-cast AZ31 magnesium alloy occurring due to homogenization have been studied using processing maps. The map for as-cast material exhibits three workability domains of dynamic recrystallization, the industrially viable one being in the temperature range of 325-400 °C and strain rate range of 0.3-1.0 s-1. The homogenization treatment, which dissolves the intermetallic particles present at the grain boundaries of as-cast material, improves hot workability by expanding the workability domains and reducing the intercrystalline cracking and flow instability regimes. The rate-controlling mechanisms are however unchanged by the homogenization treatment. © 2009 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Heat treatment (C), Microstructure (F), Plastic behavior (F)