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Meeting MS&T21: Materials Science & Technology
Symposium Processing—Microstructure—Property Relationships of Titanium and Titanium Alloys
Presentation Title Regulating Elastic and Plastic Deformation by Heterogeneous Microstructure Design in Ti-alloys
Author(s) Yunzhi Wang
On-Site Speaker (Planned) Yunzhi Wang
Abstract Scope In this presentation, I will give an overview on how to create various heterogeneous and adaptive microstructures by defect engineering for controlled strain release during elastic and plastic deformations of Ti-alloys. Compositional and/or structural non-uniformities engineered through various non-conventional phase transformation pathways, thermomechanical processes, and novel processing method such as 3D-printing are shown to have the ability to activate different elastic and plastic deformation mechanisms (including intrinsic elasticity and pseudo-elasticity, and dislocation plasticity and transformation plasticity) at different stages of deformation, offering well-controlled strain release and exceptional mechanical properties including linear superelasticity, ultralow elastic modulus, Invar and Elinvar anomalies, an exceptional combination of strength and ductility and work-hardening ability.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Data-driven Analysis for Selection and Use of Conventional Ti Alloys for Aeroengine Applications and Future Directions
Computational Polarized-Light Microscopy for Microtextured Regions Characterization in Titanium Alloys
Computational Polarized Light Microscopy for Orientation-based Quality Control
Deformation Behavior of Ti-Ni-Fe Based Ternary B2 Pseudo Binary Intermetallic
Exploiting Structural and Compositional Instabilities in Titanium Alloys to Optimize Microstructure/Property Interrelationships in Samples Fabricated by Additive Manufacuring
Influence of Athermal vs. Isothermal Omega Precipitation and Alpha Precipitation on TRIP/TWIP Deformation Mechanisms in Metastable Beta Ti alloys (invited)
Nano-scale O” Phase and Fine-scale Alpha Precipitation in a Metastable Beta Ti-5Al-5Mo-5V-3Cr Alloy
Now On-Demand Only: Strain Energy Density Fatigue Assessment of Ti-6Al-4V for Plain and Notched Geometries
Obtaining High Strength-ductility Combination inTIitanium by Microstructure and Texture Engineering through Multiaxial Plane-strain Forging
P1-29: Hierarchical Twinning Microstructure in the Metastable β Ti-24Nb-4Zr-8Sn Alloy
P1-30: Analysis of Temperature Factor Influence on the Nature of the Titanium Alloy Deformation during Extrusion
Regulating Elastic and Plastic Deformation by Heterogeneous Microstructure Design in Ti-alloys
Role of Novel Highly-indexed Twinning in Hierarchical α Microstructure in Metastable β Ti-5Al-5Mo-5V-3Cr Alloy
The BMG to Ti Weld, a Pool for Microstructure: Property Characterization
The Composition-processing-microstructure-property Relationships of Fe and Al Modified Ti-Cr Alloys

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