Characteristics of the GBS – SDC Transition during Bi-Axial Forming of AA5083

Terry McNelley; Keiichiro Oh Ishi; Srinivasan Swaminathan; John Bradley; Paul Krajewski; Eric M. Taleff

doi:10.4028/www.scientific.net/MSF.735.43

Paper Titles

On the Controversy about the Presence of Grain Boundary Sliding in Mg AZ31
p.22

Common Mechanism for Superplastic Deformation in Different Classes of Materials
p.26

Slip Induced Strain Rate Sensitivity for Superplastic Material?
p.31

EBSD Study of Microstructural Development during Superplastic-Like Forming
p.37

Characteristics of the GBS – SDC Transition during Bi-Axial Forming of AA5083
p.43

Estimation of Input to Plastic Deformation of Non-Crystallographic Intergranular Slip
p.49

Fine-Grained Structure and Superplasticity of Al – Cu – Mg – Fe - Ni Alloys
p.55

4D Damage Characterization during Superplastic Deformation of Magnesium Alloys
p.61

Evaluation of Plastic Workability Limit of Magnesium Alloy by Cavitations in High Temperature Uni and Biaxial Test
p.67

HomeMaterials Science ForumMaterials Science Forum Vol. 735Characteristics of the GBS – SDC Transition during...

Characteristics of the GBS – SDC Transition during Bi-Axial Forming of AA5083

Abstract:

Thermomechanical processing to enable superplasticity in AA5083 materials includes cold working followed by heating prior to hot blow forming. Upon heating for forming at 450°C, a B-type ({110}) rolling texture is replaced by a near-random texture with a weak superimposed cube orientation parallel to the sheet normal. The presence of refined grains 7 – 8μm in size reflects the predominance of particle-stimulated nucleation of recrystallization prior to forming. The subsequent evolution of microstructure, texture and cavitation behaviour during biaxial deformation in the solute drag creep (SDC) and grain boundary sliding (GBS) regimes will be presented.

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Materials Science Forum (Volume 735)

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43-48

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.735.43

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Online since:

December 2012

Authors:

Terry McNelley, Keiichiro Oh Ishi, Srinivasan Swaminathan, John Bradley, Paul Krajewski, Eric M. Taleff

Keywords:

AA5083 Aluminum Alloy, Biaxial Deformation, Grain Boundary Sliding (GBS), Recrystallization, Solute Drag Creep, Texture

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