In Situ Investigation of the Deformation Behaviour of the Wrought Mg Base Alloy AZ31 Using Energy Dispersive Synchrotron Diffraction

Jens Gibmeier; Manuela Klaus; Berthold Scholtes

doi:10.4028/www.scientific.net/MSF.571-572.195

Paper Titles

Investigation of Retained Strains and Microstructures for a Hot Deformed Stainless Steel
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Neutron Diffraction Study of Duplex Stainless Steel during Loading at 200°C
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Single-Line Diffraction Profile Analysis Method Used for Evaluation of Microstructural Parameters in the Plain Ferritic Steel upon Tensile Straining
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Improvements in Energy Dispersive Diffraction in Respect of Residual Stress Analysis
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In Situ Investigation of the Deformation Behaviour of the Wrought Mg Base Alloy AZ31 Using Energy Dispersive Synchrotron Diffraction
p.195

First Results of the DITO-Experiment at the HARWI II Beamline at GKSS/DESY
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Diffraction Contrast Tomography - A Synchrotron Radiation Technique for Mapping Polycrystalline Microstructures in 3D
p.207

Kowari – The Residual-Stress Diffractometer for Engineering Applications at OPAL
p.213

A Critical Discussion of the sin²ψ Stress Measurement Technique
p.219

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In Situ Investigation of the Deformation Behaviour of the Wrought Mg Base Alloy AZ31 Using Energy Dispersive Synchrotron Diffraction

Abstract:

The deformation behavior of the magnesium base alloy AZ31 was studied by means of energy dispersive diffraction using high energy synchrotron radiation. The investigations were performed at the EDDI-beamline operated by the Hahn-Meitner-Institute at Bessy II, Berlin. In-situ stress analyses were carried out for samples subjected to purely elastic as well as elasto-plastic 4- point-bending. In addition reversely loaded states were investigated. The results impressively illustrate the potential of the energy dispersive diffraction analysis processed in transmission mode for residual stress analysis of challenging material states. Inhomogeneous loading and residual stress distributions with respect to the bending height of the prestressed bars were determined for the highly textured material state indicating different predominant deformation mechanisms during tensile loading and compressive loading, respectively. After load inversion also the predominant deformation mechanisms reverse.