4D Damage Characterization during Superplastic Deformation of Magnesium Alloys

Pierre Lhuissier; Mario Scheel; Luc Salvo; Elodie Boller; Marco Di Michiel; Jean Jacques Blandin

doi:10.4028/www.scientific.net/MSF.735.61

Paper Titles

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Estimation of Input to Plastic Deformation of Non-Crystallographic Intergranular Slip
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Fine-Grained Structure and Superplasticity of Al – Cu – Mg – Fe - Ni Alloys
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4D Damage Characterization during Superplastic Deformation of Magnesium Alloys
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Evaluation of Plastic Workability Limit of Magnesium Alloy by Cavitations in High Temperature Uni and Biaxial Test
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Effect of Porosity on Tensile and Compressive Deformations of Superplastic Zn-22Al Alloy Foam
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Two-Dimensional Observation of Grain Movements in Elongated and Aligned Grain Structure during High Temperature Deformation
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Enhanced Plastic Deformation of Magnesium Alloy Produced through Accumulative Diffusion Bonding
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HomeMaterials Science ForumMaterials Science Forum Vol. 7354D Damage Characterization during Superplastic...

4D Damage Characterization during Superplastic Deformation of Magnesium Alloys

Abstract:

As for aluminium alloys, magnesium alloys are generally sensitive to strain induced cavitation when they are deformed in superplastic conditions. It has been widely shown that X-ray micro tomography is a particularly efficient tool for studying in 3D damage mechanisms during superplastic deformation. However, such characterisations are generally performed in post mortem conditions, namely on samples first deformed up to given strains and then characterised. In the present investigation, thanks to particularly short acquisition times offered by ESRF, damage induced by superplastic deformation of a magnesium alloy is studied thanks to tomography analyses performed in 4D conditions, namely directly during high temperature deformation tests. Such conditions provide unique opportunities for investigating nucleation, growth and coalescence of cavities since it is thus possible to follow each cavity up to the fracture process.

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Periodical:

Materials Science Forum (Volume 735)

Pages:

61-66

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.735.61

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Online since:

December 2012

Authors:

Pierre Lhuissier, Mario Scheel, Luc Salvo, Elodie Boller, Marco Di Michiel, Jean Jacques Blandin

Keywords:

Damage, In Situ, Magnesium Alloy, X-Ray Micro-Tomography

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