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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
Presentation Title In-situ Neutron Diffraction of Strain Path Change Effects in Cold-rolled MgAZ31B Sheet
Author(s) Karl Sofinowski, Steven Van Petegem, Jan Capek, Helena Van Swygenhoven
On-Site Speaker (Planned) Steven Van Petegem
Abstract Scope There has been growing interest in wrought magnesium alloys for strong, lightweight structural components in cars, aircraft, and electronics. These components are subjected to non-linear loading conditions during cold-forming and use, which is known to influence their mechanical properties. It is therefore important to study the microstructural evolution during strain path changes in these alloys to understand their macroscopic response under such conditions. In situ neutron diffraction has been used extensively to investigate the evolution of intergranular strain during loading to provide insight on the relative behavior of different magnesium alloy deformation modes during uniaxial tension/compression tests. In this work, we report on results from in situ neutron diffraction experiments combined with in situ acoustic emission of strain path changes of cold-rolled Mg AZ31B sheets. It is found that, while dislocation slip prevails as the main deformation mechanism, twinning activity strongly depends on the nature of the strain path change.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


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In-situ Neutron Diffraction of Strain Path Change Effects in Cold-rolled MgAZ31B Sheet
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