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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Magnesium Alloy Development: An LMD Symposium in Honor of Karl Kainer
Presentation Title Recent Developments in the Application of the Interdependence Model of Grain Formation and Refinement
Author(s) David StJohn
On-Site Speaker (Planned) David StJohn
Abstract Scope The Interdependence model will be briefly reviewed and then applied to two different casting situations. One is the solidification of Mg-Al-Sm alloys to determine the optimum composition for achieving a fine as-cast grain size. Because the size range of the nucleant particles can be measured, the key factors describing the potency of the particle can be calculated providing a more complete description of the grain formation mechanisms operating for this alloy. This approach should be relevant for other Mg-Al-RE alloys. The other casting situation is where the melt of an AM60 - AlN nanoparticle composite was treated ultrasonically producing a fine grain size on solidification. The limitations to grain size reduction by nanoparticles are discussed in terms of the Interdependence and Free Growth models.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Alloy Design for the Development Heat Treatable Mg Sheet Alloy with Excellent Room Temperature Formability and Strength
Biodegradable Mg-Y and Mg-Li Alloys with the Addition of Ca and Zn to the Medical Application
C-49: Corroding Magnesium Implants – a New Class of Biomaterials
C-50: Development and Characterization of Mg-4Zn-0.5Ca-0.16 Mn (wt. %) Alloy for Biomedical Applications
C-51: Development of Ultralight and Ultrafine Grained Mg-4Li-1Ca Alloy for Biomedical and Lightweight Applications
C-52: Effect of Al Addition on the Microstructure and Compressive Properties of Mg-based AZ31 Alloy
C-53: Magnesium Nanocomposites, Progress and Potential
C-54: Metal Injection Molding (MIM) of Mg-alloys
C-55: Microstructure Evolution and Mechanical Properties of Thin Strip Twin Roll Cast (TRC) Mg Sheet
C-56: Orientation and Length Scale Effect in Deformation Mechanism in Pure Magnesium
C-57: Precipitate Strengthening Mechanisms in Different Mg Alloys by In Situ Synchrotron X-ray Diffraction
C-58: The Effect of Shearable Plate-shaped Precipitates on the Strength of Mg Alloys
Co-precipitation on the Basal and Prismatic Planes in Mg-Gd-Ag-Zr Alloy Subjected to Over-ageing
Creep Resistant Mg-Mn Based Alloys for Automotive Powertrain Applications
Degradable Magnesium Implants - Assessment of the Current Situation
Development of Magnesium-Rare Earth Die-casting Alloys
Development of Magnesium Sheets
Effects of Severe Plastic Deformation on Mechanical Properties and Corrosion Behavior of Magnesium Alloys
Enhancing Impact Toughness of Mg-3%Al-1%Zn Alloy by Grain Structure Modification
Evolution of the Dislocation Structure during Compression in a Mg-Zn-Y Alloy with Long Period Stacking Ordered Structure
Interaction between Propagating Twins and Non-shearable Precipitates in Magnesium Alloys
Intermetallic Phase Characteristics in the Mg-Nd-Zn System
Magnesium Pistons in Engines: Fiction or Fact?
Recent Developments in the Application of the Interdependence Model of Grain Formation and Refinement
Solidification Analysis of Grain Refined AZ91D Magnesium Alloy via Neutron Diffraction
Solutions for Next Generation Automotive Lightweight Concepts Based on Material Selection and Functional Integration
Study on Mg-Si-Sr Ternary Alloys for Biomedical Applications
Thermodynamics of Phase Formation in Mg–Al–C Alloys Applied to Grain Refinement
Toward Development of Heat-treatable Magnesium Sheet Alloys with Excellent Room Temperature Formability

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