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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium In-situ Methods for Unraveling Structure-Property Relationships in Light Metals
Presentation Title Real-time Observation of AZ91Solidification by Synchrotron Radiography
Author(s) Guang Zeng, Kazuhiro Nogita, Sergey Belyakov, Jingwei Xian, Stuart D McDonald, Hideyuki Yasuda, Christopher Gourlay
On-Site Speaker (Planned) Guang Zeng
Abstract Scope Solidification of AZ91 involves complex phenomena, various reactions and phases, and depends on the cooling conditions. In this study, microstructure evolution during AZ91 solidification was studied at various cooling rates, by real-time synchrotron radiography. Quantitative image analysis of the radiograph sequences was then combined with thermodynamic calculations and post-mortem electron microscopy and micro-analysis. Nucleation and growth of Al8Mn5 intermetallics and their interactions with -Mg dendrite were quantified. -Mg dendrite envelope development and solute partitioning at solid-liquid interfaces were also analyzed. The results have implications for microstructure control and understanding of structure-property relationships in cast AM and AZ series alloys.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Microstructural Evolution on Solidifying Mg-5Nd-5Zn Alloy Observed via In Situ Synchrotron Tomography
Acoustic Emission Study of Deformation Behavior of Wrought Mg Alloys
Advanced Aluminum Alloys Development and In-Situ Fitness-for-Service Testing in Automotive Lightweighting
Ambient Pressure X-ray Photoelectron Spectroscopy in Light Element Materials Investigations
Analysis of Microstructure and Damage Evolution in Ultra-thin Wires of the Magnesium Alloy MgCa0.8 at Multipass Drawing
Effect of the Zn Content on the Compression Behaviour of Mg5Nd(Zn): An In Situ Synchrotron Radiation Diffraction Study
Effect of Thermo-mechanical Treatment of Extruded Z1 Mg Alloy on Resulting Mechanical Properties
Formability of Magnesium Alloy AZ31B from Room Temperature to 125C under Biaxial Tension
I-19: Development of Plasticity Models via Point-by-Point Comparison with HREBSD and Microscale DIC
I-21: Parameter Study and Experimental Validation of Crystal-scale Finite Element Analyses of Titanium Alloys
I-22: The Application of Synchrotron X-ray Tomography in the Solidification of Mg Alloys
In-situ Investigation of Deformation Mechanisms in Mg-Zn-Y Magnesium Alloy with LPSO Phase by Diffraction Methods and Acoustic Emission
In-situ Real-time Monitoring of Aging Processes in an Aluminum Alloy by High-precision Dilatometry
In-situ X-ray Synchrotron Profile Analysis during High Pressure Torsion of Ti
Morphological Transition of α-Mg Dendrites during Near-isothermal Solidification of a Mg-Nd-Gd-Zn-Zr Casting Alloy
Overview of In-Situ X-ray Studies of Light Alloy Solidification in Microgravity
Real-time Observation of AZ91Solidification by Synchrotron Radiography
Structural Evolution of Metals at High Temperature: Complementary Investigations with Neutron and Synchrotron Quantum Beams
The Effect of Grain Refinement on Hot Tearing in AZ91D Magnesium Alloys
The Use of In-situ X-ray Imaging Methods in the Research and Development of Magnesium-based Grain-refined and Nanocomposite Materials

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