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Meeting Materials Science & Technology 2019
Symposium Ultra High Performance Metallic Systems for Aerospace, Defense, and Automotive Applications
Presentation Title In-situ Studies of Strain Rate Effects on Phase Transformations and Microstructural Evolution in β-Titanium
Author(s) Benjamin Ellyson, Amy Clarke, Jonah Klemm-Toole, Yaofeng Guo, Jinling Gao, Wayne Chen, Niranjan Parab, Kamel Fezzaa, Tao Sun
On-Site Speaker (Planned) Benjamin Ellyson
Abstract Scope Titanium (Ti) alloys are heavily used in the aerospace and bio-medical industries, due to their exceptional specific strength and corrosion resistance. However, limited uniform elongation and low work-hardening restrict allowable deformation and absorbed energy of parts in service. Transformation-induced and twinning-induced plasticity (TRIP and TWIP, respectively) have been heavily utilized in steels to increase crash-resistance in service, circumventing the traditional strength/ductility trade-off. Recent studies have shown that metastable β-Ti alloys exhibit TRIP and TWIP during deformation, and have been reported to produce exceptionally high uniform elongation and flow stresses . This project aims to fundamentally understand microstructural evolution across multiple length scales in metastable β-Ti alloys after testing in compression and tension at different strain-rates. Preliminary studies on commercially available Ti-10V-2Fe-3Al and Ti-15Mo (wt.%) have demonstrated the feasibility of tuning deformation mechanisms and microstructural stability to obtain tailored mechanical properties by TRIP/TWIP in Ti-1023 and Ti-15M alloys.
Proceedings Inclusion? Definite: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Bulk-state reaction for synthesizing bulk hybrid alloys through high-pressure torsion
Cold Work-Induced Strain Glass States in Ni49.5Ti50.5 SMA Plates
Deformation Behavior of Al0.4CoCrFeNi High Entropy Alloy
Development of Nb-Si Based Ultrahigh Temperature Alloys
Development of Novel Castable Structural Aluminum Alloys for Elevated Temperature Applications
Effect of Thermal History on Mechanical and Wear Properties of Bulk Metallic Glass Spacecraft Components
Effects of Pd Addition to High Strength NiTiHf Shape Memory Alloys
Evolution in Mechanical Response, Phase Transformation and Texture of Titanium Aluminide processed by High-Pressure Torsion
First-principles Methods of Investigating Stacking Fault Energies in Refractory BCC High-entropy Alloys
Hierarchical Nanoporous Metals
In-situ Studies of Strain Rate Effects on Phase Transformations and Microstructural Evolution in β-Titanium
Influence of Equal-Channel Angular Pressing on the microstructure, the corrosion and the fatigue-corrosion behavior of a 6xxx aluminum alloy for automotive conductors
Location-Specific Mechanical Property Enhancement of Atomically Ordered Fe-Co-V Soft Magnetic Alloys
Macroscopic Ferroelastic Response of Processing-Induced Strain Glass Alloys under Tension, Compression, and Bending
Mechanical Behavior of Mo Solid Solutions with Minor B and Si Additions
Mechanism Controlled Rolling
Microstructural Characterization and High Temperature Oxidation of High Entropy Nb-Cr-W-Ta-V alloy between 600 and 1400oC
Multi Length-scale Mechanical Property Measurements in Ti-based Bulk Metallic Glass-matrix Composites (BMG-MCs): New Insights on Deformation Mechanisms in the Glass Phase
Nanoindentation Measurements of Crystal Orientation Anisotropy in Elastic and Plastic Properties of Ti-Pt-Ni-Hf Shape Memory Alloys
Outstanding Fracture Toughness and Fatigue Strength of a Cast Al-Cu Alloy Promoted by Nanoparticles
P2-86: Combinatorial Studies on Refractory High-entropy Alloys via Directed Vapor Deposition
P2-87: Improvement of Technological Processes Obtaining a Heat-resistant Nickel Alloys for Turbine Blades Using Foundry Return
P2-88: Improvements in Mechanical Properties of Aerospace Grade Al-Li Alloys Through the Application of High-Pressure Torsion
Precipitate Formation Mechanisms During High-Shear Solid Phase Processing Events
Role of Cu Content in Determining the Mechanical Behavior of Cast Al-Cu-Mn-Zr Alloys
Solid Phase Processing of Copper/Graphene Alloys with Ultra-high Conductivity
Structures Formed under High Strain Deformation of Ni-based Superalloys
Thermal behavior of ultra-fine gradient microstructure via severe plastic deformation
Titanium Alloys with Radially Distributed Porosity and Structural Hierarchy

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