Parameters Controlling High Temperature Deformability of Wrought Magnesium Alloys

Pierre Lhuissier; Luc Salvo; Jean Jacques Blandin

doi:10.4028/www.scientific.net/MSF.783-786.352

Paper Titles

The Numerical and Experimental Study on DC Casting Process of Three-Layer Composite Ingots of 4045/3004/4045 Aluminum Alloys
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Effect of Processing Conditions on the Microstructure Development during Constrained Groove Pressing of Aluminium
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Tensile Deformation of Magnesium and Magnesium Alloy Single Crystals
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Corrosion Characterization of Magnesium Alloys – The Role of Process Parameters
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Parameters Controlling High Temperature Deformability of Wrought Magnesium Alloys
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The Effect of Ce Addition on the Creep Resistant Mg-Sr-Mn Alloys
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The Orientation Dependence of Strain Hardening and Texture Development in an Extruded Magnesium Alloy
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Effect of Thermomechanical Processes on Twin Roll Casted Magnesium Alloy Sheets
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Room Temperature Screw Form Rolling of AZ91D Magnesium Alloy through Processing by Extrusion-Torsion Simultaneous Working
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HomeMaterials Science ForumMaterials Science Forum Vols. 783-786Parameters Controlling High Temperature...

Parameters Controlling High Temperature Deformability of Wrought Magnesium Alloys

Abstract:

Due to limited deformability at room temperature, high temperature forming of magnesium alloys appears as an interesting alternative. Superplastic properties can be obtained in the case of fine grained magnesium alloys and in this regime, due to significant damage sensitivity, fracture strain is mainly controlled by nucleation, growth and coalescence of cavities. Magnesium alloys with large grained alloys can also exhibit interesting deformabilities at high temperature since dislocation movements can be controlled by a solute drag effect promoting plastic stability. Examples of such situations are presented in the case of wrought magnesium alloys, the associated damage mechanisms being investigated thanks to 3D X-ray micro tomography performed in continuous mode, namely directly during high temperature deformation tests.

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Materials Science Forum (Volumes 783-786)

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352-357

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.352

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Online since:

May 2014

Authors:

Pierre Lhuissier, Luc Salvo, Jean Jacques Blandin

Keywords:

Damage, High Temperature Deformation, In Situ, Magnesium Alloy, Solute Drag, X-Ray Micro Tomography

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