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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium In-situ Methods for Unraveling Structure-Property Relationships in Light Metals
Presentation Title In-situ Real-time Monitoring of Aging Processes in an Aluminum Alloy by High-precision Dilatometry
Author(s) Martin Luckabauer, Elisabeth Hengge, Gregor Klinser, Wolfgang Sprengel, Roland Würschum
On-Site Speaker (Planned) Wolfgang Sprengel
Abstract Scope Hardening of industrial aluminum alloys mostly occurs due to highly complex precipitation processes. Characterization of often metastable precipitates/phases can be well performed, e.g., by advanced microscopic techniques, however, accessing the kinetics of the precipitation process is in general more demanding. As formation, transformation or dissolution of phases are mostly accompanied by volume changes dilatometric techniques are highly feasible. Only here most commercially available dilatometric devices lack the resolution ΔL/L < 10<SUP>-5</SUP> and long-term stability up to t = 10<SUP>6</SUP>s. We present <I>in-situ</I> isothermal, high-precision length-change measurements during artificial aging of a commercial aluminum alloy (AW6060) at different temperatures. Measurements were performed with a laser-dilatometer of which major parts are self-designed giving now access to the required resolution and stability regimes. The results support the precipitation sequence proposed for Al-Mg-Si alloys clearly showing the transitions between the different steps towards the stable Mg<SUB>2</SUB>Si phase. Supported by Austrian Science Fund (FWF): P25628-N20.
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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