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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Phase Transformations and Microstructural Evolution
Presentation Title Complexion-mediated Martensitic Phase Transformation in Titanium
Author(s) Jian Zhang, Xiangdong Ding, Dierk Raabe, Jun Sun
On-Site Speaker (Planned) Jian Zhang
Abstract Scope The most efficient way to tune microstructures and mechanical properties of metallic alloys lies in designing and utilizing athermal phase transformations. Examples are shape memory alloys and high strength steels which together stand for 1500 million tons annual production. In these materials, martensite formation and mechanical twinning are tuned via composition adjustment for realizing complex microstructures and beneficial mechanical properties. Here, we report a new phase transformation that has the potential to widen the application window of Ti alloys, the most important structural material in aerospace design, by nanostructuring them via complexion-mediated transformation. This is a reversible martensitic transformation mechanism that leads to a final nanolaminate structure of alpha’’ (α”, orthorhombic) martensite bounded with planar complexions of athermal omega (a-ω, hexagonal). Both phases are crystallographically-related to the parent beta (β, BCC) matrix. As expected from a planar complexion, the a-ω is stable only at the hetero-interface.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


Abnormal Formation of the Sigma Phase in Sputter-deposited Austenitic Stainless Steel Coatings
An Overview of Microstructure, Mechanical and Physical Properties of Zr–Mo Alloys
Analysis of Misorientation Relationship between Austenite Parent and Twins
Application of a Generalized Interface Model for Calculation of Solid-liquid Interfacial Free Energy in Alloys
Austenite Carbon Measurement in Q&P Steels: Atom Probe Tomography vs. High Energy XRay Diffraction
B19’ Strain Glass Transition and Associated Phase Diagram in Deformed TiNi SMA with Unique Properties
Bainite Transformation in Medium Carbon Microalloyed Steel
Carbide Precipitation in Thin Wall Ductile Iron Cast in Silica Sand / Rice Husk Ash Mould
Changes in Microstructures and Mechanical Properties in T92 during Long-term Aging Treatment
Coherent DO22 Superlattice in an Aged Ni-Cr-W-Ti Superalloy with High Strength
Complexion-mediated Martensitic Phase Transformation in Titanium
Computational Design of Creep-resistant Ferritic Alloy Strengthened by Laves Phase
Control of β Phase Stability and Deformation Induced Martensitic Transformation in a Near-α titanium Alloy
Deformation-induced Phase Transformations during Biaxial or Strain Path Change: HR-DIC and Synchrotron X-ray Diffraction
Deformation Twins Induced by High-density Pt2Mo-type Superlattice Mediated Portevin-Le Chatelier-like Effect in Ni-Cr-Mo Alloy
Detailed Investigation of Alpha Phase Formation in Metastable Beta Ti Alloys Using Advanced Characterization Techniques
Dynamic Precipitation in a Mg-9wt.%Al Alloy during Low-temperature Equal Channel Angular Extrusion (ECAE)
Dynamic Transformation of Ti-6Al-4V Alloy in theTwo-phase Region
Effect of Precipitation on Creep Properties of Ferritic Steels
Effect of Wire Diameter on Phase and Kirkendall Pore Evolution in Titanium Coated Nickel Wires
Effects of Additional Elements on the Phase Stability and Precipitation Behavior of C14 Laves Phase in High Cr Ferritic Alloys
Effects of Grain Orientation during Spark Plasma Sintering Beta Phase Ti-Al-Nb Alloys
Effects of Low-cost Coherent L12-structured Nano-precipitates in Commercial Aluminum Alloys
Elastic Modulus and Structural Changes upon Age Hardening of a Palladium-based Alloy, Paliney 7
Evolution of Martensitic Transformation Behavior in Cu-Zr-Ni Shape Memory Alloy Thin Films Evaluated Using Combinatorial Nanocalorimetry
Evolution of Microstructure and Hardness in Ni-rich NiTi Shape Memory Alloy at Various Thermal Conditions
Evolution of Microstructure in High Strength Bainitic Steel
Impact of D019 Ordering in Hf-Sc-Ti-Zr Based Hexagonal Solid Solutions upon Addition of Al and Nb
Impact of Solute Segregation on Phase Transformations during Cooling and Austempering of Direct-strip-cast High Strength Bainitic Steels
In Situ Observation of Shear-driven Amorphization Process in Silicon Crystals
In Situ TEM Investigation of Microstructural Evolution in Gas Atomized Al-6061 Powder Particles
Influence of Deformation and Heat Treatment on the Microstructure Evolution in the Nickel Superalloy 625
Influence of Sn on Martensitic Phase Transformation and Super-elasticity of Beta Ti Alloys
Interface Characteristics in Ti6246
Irradiation-induced Phase Reversal and Grain Boundary Formation in U-alloys
Isothermal Omega Phase Formation in Ti-Nb-Fe Alloys
Kinetics Analysis of Tempering, Inter-critical Annealing and Austenitization of Supermartensitic Stainless Steels
Long-term Thermal Stability of Nickel-base Superalloys
Microstructural Evolution and Compositional Homogenization of As-cast Multicomponent Low Re-containing Ni-based Single Crystal Superalloy during Stepwise Solution and Aging Heat Treatments
Microstructural Evolution and Hardness of Mechanically Alloyed Fe-1.4wt.%C Alloy
Microstructural Evolution of a New Beta Titanium Alloy during the Beta Annealing, Slow Cooling and Aging Process
Microstructural Evolution of Nickel during Multiple Annealing Stages from Three-dimensional X-ray Microscopy
Microstructural Evolution of Ti-Mo and Ti-Mo-Fe Alloys during Continuous Heating and Aging Heat Treatments
Microstructural Modeling and Thermodynamics-kinetics Relations of the Austenite-to-ferrite Transformation in Fe-C-Mn-Si Steels
Microstructure Characterization of Aged Heat Resistant Steels
Modeling the Effect of Stress State on Martensitic Phase Transformation in Austenitic Steel
Modelling the Growth of Bainitic Ferrite
Modifying the Microstructure in Polycrystalline Nickel Base Superalloys Using a Stepped Cooling Rate
Morphological Development of Quasicrystals in Powder-processed Icosahedral-phase-strengthened Aluminum Alloys
Nano-scale Instabilities in Beta Titanium Alloys
Novel Consolidation and Material Homogenization observed via Shear Assisted Processing and Extrusion (ShAPE)
Nucleation and Growth of Austenite in a Fe-12Mn-3Al-0.06C Medium-Mn Steel Annealed at 585°C
Nucleation and Growth of Crystalline Carbonates from Amorphous Precursors
On Dual-phase “Strain-transformable” Titanium Alloys for Enhanced Mechanical Properties: Design Principles, Microstructural Optimization and Deformation Mechanisms
On the Deformation Mechanisms of a New Metastable Beta Titanium Alloy with High Strength and High Strain Hardening Rate
Phase-field Approach Coupled with Crystal Plasticity for Three-dimensional Recrystallization in Ti-Al Alloys and Comparison with Experiment
Phase-field Modeling of Widmanstätten Growth
Phase Stability and Microstructure of the Zeta Phase in Transition Metal Carbides and Nitrides
Phase Transformation Behaviors, Crystal Orientation Relationships, Elements Spatial Distributions, and Strengthening Mechanisms in a High Strength Cu-Ni-Si Alloy
Phase Transformation Modeling of Technical Al Alloy during Solidification
Phase Transformations, Boron Segregation, and the Metatectic Reaction in Boron-containing Steels
Physical Metallurgy of Segregation and Austenite Reversion in Medium Mn Steels
Precipitation Kinetics and Strengthening: Beyond the Textbook Description
Precipitation of CFCC-TmC Carbides during Tempering at 450°C of a Medium Mn Steel: A Thermodynamic and Kinetic Study Followed by Atom Probe Tomography
Precipitation of Dispersoids in Multicomponent Al-Mg-Si-Mn-Fe Alloys
Quantitative Transmission Electron Microscopy of Microstructure Evolution in Al-Cu Alloys during Laser-induced Rapid Thermal Transients Characteristic of Additive Manufacturing
Recrystallization and Phase Transformations in Linear Friction Welded Ti-64 and Ti-17 Alloys
Role of Anisotropic Mobility and Grain Orientation on Microstructure Evolution during Sintering
Role of Initial Microstructure on the Stability of Pressure Induced ω-phase Zirconium
Role of Interaction between Particles on Particle Stability
Solid State Phase Transformation Mechanism in High Carbon Steel under Compressive Load and with Varying Cr Percent
Study of Phase Transitions in Metastable β-Ti Alloy by Various In-situ Techniques
Study on the Effect of V Microalloying on Earthquake Resisting High-strength Reinforcing Bar Steels
Sublimation and Self Freezing of Planar Surfaces in Rarefied Atmospheres
The Completeness of ω Phase Transformation in Metastable β Titanium Alloys Studied by X-ray Diffraction
The Deformation-induced β-α Martensite Transformation in a Metastableb Zr-Ti Alloy
The Effect of Deformation-induced Adiabatic Heating on Microstructure Evolution of Ti-6Al-4V Alloy during Open-die Screw Press Forging
The Effects of Alloying Element Additions and Heat Treatment Procedures on the Microstructural and Mechanical Development of Nickel-based Superalloys
The Evolution of Grain Structure of pure iron during Directional Recrystallization
The Microstructural Evolution and Mechanical Behavior of Beta Titanium Alloys Based on Ti-13Cr(wt.%)
The X-phase of Precipitates
Thermo-mechanical Simulation of Solid-state Welding in Ti-17
Tuning Microstructure and Composition of (La0.8Sr0.2)0.98CrxFe1-xO3±δ with Using Thermodynamic Modelling
Tuning Phase Transformation in Compositionally Complex Alloys for Superior Mechanical Properties
Understanding the Initial Development of γ/γ' Microstructures in Cobalt-based Superalloys
Using Multiparadigmatic Approach in Microstructure Evolution Prediction of Two-Phase Titanium Alloys: Linking Artificial Neural Networks, 2-point Statistics, Multiphase-field Methods and Self-consisting Analytical Models. Building Integrated Computational Materials Engineering (ICME) and Materials Data Infrastructure (MDI).

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