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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Driving Discovery: Integration of Multi-Modal Imaging and Data Analysis
Presentation Title In Situ Synchrotron Quantification of Evolving Solidification Microstructures in Ni and Co Based Alloys
Author(s) Mohammed Abdul Azeem, Peter D Lee, Peter Rockett, Loic Courtois, Shyamprasad Karagadde, Fenglin Yi, Rahman Khandaker, David Dye, Robert Atwood
On-Site Speaker (Planned) Mohammed Abdul Azeem
Abstract Scope Understanding the microstructural evolution of Ni and Co superalloys during solidification is essential for not only the control of final properties, but also for the elimination of defects such as shrinkage porosity and freckles. In this investigation, grain, dendrite and defect morphology is quantified during solidification in 4D (3D + time) using synchrotron x-ray tomography. Two novel high x-ray attenuation contrast alloys, (Ni,Co) Hf , were developed to allow tomographic quantification. Statistical measures of the evolving volume fraction, primary and secondary arm spacing, growth velocities, curvatures, will be discussed. The results are used to both inform and validate microstructural models of dendritic microstructure evolution.
Proceedings Inclusion? Planned: A print-only volume


3D and 4D Characterization of Failure Mechanisms in Commercial Li-Ion Batteries
Bingham Mixture Model for Efficient Microtexture Estimation from Discrete Orientation Data
Correlation of Multi-modal Chemical Imaging with Computational Simulations for Energy Materials
Digital Representation of Materials Grain Structure from Four-Dimensional X-ray Microtomography Data
Error Analysis of Near-field High Energy Diffraction Microscopy
In Situ Synchrotron Quantification of Evolving Solidification Microstructures in Ni and Co Based Alloys
Integrated Imaging: The Sum is Greater than the Parts
Integrated Multimodal Imaging of Cathodes for Lithium Ion Battery
Methodology for Reconstruction of Samples Analyzed with Simultaneous Neutron and X-Ray Imaging
Modeling Multi-modal Images of Photocatalysis on Cu2O
Multi-Modality Imaging at the Hard X-ray Nanoprobe Beamline at the NSLS-II
Multi-scale, Multi-Model Analysis of Deformation Behavior in Metallic Materials by X-ray Microtomography, FIB, and EBSD
Neutrons, Materials and Data Challenges
Real Time Analysis, Interpretation and Experimental Steering for Electron Microscopy
Recognizing Patterns from Experimental Data
Structure Quantification, Property Prediction and 4D Reconstruction Using Limited X-ray Tomography Data

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