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Investigation of Dynamic Recrystallization in an Al-Li-Cu-Zr(-Mg) Alloy

Journal Defect and Diffusion Forum (Volumes 297 - 301)
Volume Diffusion in Solids and Liquids V
Edited by Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado
Pages 57-61
DOI 10.4028/www.scientific.net/DDF.297-301.57
Citation Arash Rezaei et al., 2010, Defect and Diffusion Forum, 297-301, 57
Online since April, 2010
Authors Arash Rezaei, Shahram Ahmadi, Ali Shokuhfar
Keywords Critical Reduction, Dynamic Recrystallization (DRX), Hot Rolling, Microstructure
Abstract

In this investigation, the dynamic recrystallization phenomenon (DRP) of an Al-Li-Cu-Mg-Zr alloy was studied at two temperatures, 350°C and 400°C. Wedge samples were subjected to hot rolling deformation in both temperature and one passes. For wedge specimens, reduction up to 70% was considered. Results showed that the grain size of the specimens after hot rolling decreases from 100 μm to 30 μm because of DRP. Furthermore, it is observed that critical reduction for starting DR at 400°C is 40% and at 350°C reduction must increase to 50%.

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