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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium In-situ Methods for Unraveling Structure-Property Relationships in Light Metals
Presentation Title Overview of In-Situ X-ray Studies of Light Alloy Solidification in Microgravity
Author(s) David J Browne, F. García-Moreno, H. Nguyen-Thi, G. Zimmermann, F. Kargl, Ragnvald Mathiesen, Axel Griesche, O. Minster
On-Site Speaker (Planned) David J Browne
Abstract Scope Gravity has significant effects on alloy solidification, primarily due to thermosolutal convection and solid phase buoyancy. Since 2004, the European Space Agency has been supporting investigation of these effects by promoting in-situ X-ray monitoring of the solidification of aluminium alloys on microgravity platforms, on earth, and in periodically varying g conditions. The first microgravity experiment – investigating foaming of liquid metals – was performed on board a sounding rocket, in 2008. In 2012 the first ever X-ray-monitored solidification of a fully dense metallic alloy in space was achieved: the focus was columnar solidification of an Al-Cu alloy. This was followed in 2015 by a similar experiment, investigating equiaxed solidification. Ground reference experiments were completed in all cases. In addition, similar experiments have been performed on board parabolic flights – where the effects of varying gravity have been studied. We review here the technical and scientific progress to date, and outline future perspectives.
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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