|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||In Operando Nano- and Micro-mechanical Characterization of Materials with Special Emphasis on In Situ Techniques
||In-situ High-energy X-ray Investigation of Plastic Deformation and Damage Evolution in Polycrystalline Cu-5%W Composite
||Reeju Pokharel, Timothy Ickes, Bjorn Clausen, Ching-Fong Chen, Darren Dale, Ricardo Lebensohn
|On-Site Speaker (Planned)
Cu-W composite sample of 95 wt% Cu and 5 wt% W was prepared by powder metallurgy to study damage in polycrystalline materials. Cu-5%W sample was subjected to tensile strain and in-situ high-energy X-ray diffraction and tomography measurements were performed at multiple strain levels. High-energy X-rays enabled the mapping of grain resolved orientations, lattice strains, and difference in densities between two phases in three dimensions. The non-destructive nature of the measurements facilitated tracking the evolution of plastic deformation, stress localization, void nucleation and growth leading to failure in a single sample. The experimental data will be used for development and validation of FFT based crystal plasticity models.
||Planned: A print-only volume