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Meeting MS&T22: Materials Science & Technology
Symposium Processing-Microstructure-Property Relationships of Titanium and Titanium Alloys
Presentation Title Development of High Mechanical Strength and Low Elastic Modulus Ti-Nb-Fe-Sn-Zr Alloy for Orthopedic Implants
Author(s) Josimar AC Grippa, Mariana G Mello, Rubens Caram
On-Site Speaker (Planned) Rubens Caram
Abstract Scope Ti-Nb-Fe-Sn-Zr alloys have been identified as promising biomaterials for application in orthopaedic implants owing to their relatively low cost, good biocompatibility, and high mechanical strength along with their interesting elastic properties. While the Ti-Nb-based alloys are candidate materials for manufacturing of orthopedic implant devices, the addition of Fe to them improves the mechanical strength. In the resulting Ti-Nb-Fe alloys, ω phase precipitation can be controlled by the addition of Sn or Zr. Understanding the phase transformations in the Ti-Nb-Fe-Sn-Zr alloys is essential for microstructural control and consequent optimization of mechanical behaviour. In this study, samples of Ti-19Nb-2.5Fe-3Sn-5Zr (wt.%) alloy were solution heat-treated and water-quenched resulting in a metastable β phase matrix with athermal ω phase precipitation. Phase transformations on aging were investigated. It was found that this alloy can show a yield strength close to 940 MPa and elastic modulus as low as 61 GPa.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Approaches to Improving Yield-strength without Compromising Strain-hardenability in β-Titanium Alloys
Conventional Ti Alloys for Aeroengines And Aircraft Landing Gear Beams—a Data-driven Analysis for Selection of Ti-based Alloys and Future Directions
Design of New Metastable Ti Alloys and Determinations of Their Deformation Mechanisms Active during Tensile Deformation
Development of High Mechanical Strength and Low Elastic Modulus Ti-Nb-Fe-Sn-Zr Alloy for Orthopedic Implants
Dilatometric Study of Phase Transformations in Ti-407
Enhancing Low-cycle Fatigue Life of Commercially-pure Ti By Deformation At Cryogenic Temperature
Hierarchical Twinning Microstructure in the Metastable β Titanium Alloys
Insights from Three-dimensional Characterization of Twins in Titanium
Microstructure-based Equivalent Initial Flaw Size (m-EIFS) Distributions for Airframe Structural Components
Microstructure Evolution and Mechanical Behaviour of Two Phase (α+β) Ti-6Al-4V Alloy : An Effect of Heat Treatment Temperature and Duration
Nanoindentation Studies and Bulk Mechanical Properties of Additively Manufactured Titanium Alloys
Role of Oxygen on Phase Stability, Precipitation, and Deformation in Beta Titanium Alloys
Slip-twinning Interdependency in High-strength Alpha-beta Titanium Alloys
Tailoring Martensitic Transformation in Metastable Beta-Ti Alloys
Titanium Alloy Microstructures Produced by Additive Manufacturing and Deformation
Using Synchrotron X-ray Characterization to Understand Slip Processes in Titanium Alloys

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