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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Magnesium Alloy Development: An LMD Symposium in Honor of Karl Kainer
Presentation Title C-51: Development of Ultralight and Ultrafine Grained Mg-4Li-1Ca Alloy for Biomedical and Lightweight Applications
Author(s) Saurabh Sanjay Nene, B P Kashyap, N Prabhu, Y. Estrin, T. Al-Samman
On-Site Speaker (Planned) Saurabh Sanjay Nene
Abstract Scope We present a new Mg-4Li-1Ca alloy developed with a view to have a bioresorbable implant property that combines low density with favorable mechanical properties and acceptable biocompatibility. Our study shows that the targets set have been achieved. The material possesses a very low density of 1.55 g/cm3 owing to alloying with Li and Ca, which are lighter than Mg. A reasonably high tensile strength of 250 MPa and elongation of 23% were obtained as a result of thermo-mechanical processing by two-step rolling + annealing. These properties are attributed to the formation of refined microstructure (d = 2.5 Ám) and a weak texture (intensity of 3.3 multiples of random distribution). Biodegradation and cell viability on the surface of alloy specimens showed promising response in terms of biocompatibility. These results suggest that alloy LX41 can be considered as a strong competitor amongst Mg alloys currently considered for biomedical and structural lightweight applications.
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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