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

Arash Rezaei; Shahram Ahmadi; Ali Shokuhfar

doi:10.4028/www.scientific.net/DDF.297-301.57

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

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%.