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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Defect and Phase Transformation Pathway Engineering for Desired Microstructures
Sponsorship TMS Materials Processing and Manufacturing Division
TMS: Phase Transformations Committee
Organizer(s) Yufeng Zheng, University of North Texas
Rongpei Shi, Harbin Institute of Technology
Yipeng Gao, Jilin University
Timofey Frolov, Lawrence Livermore National Laboratory
Stoichko Antonov, National Energy Technology Laboratory
Jessica A. Krogstad, University of Illinois at Urbana-Champaign
Bin Li, University Of Nevada, Reno
Scope Solid–solid phase transformation during thermo-mechanical processing (TMP) is still one of the most effective and efficient means to produce desired microstructures for structural (including orthopedic implant) and functional materials including steels, light metals (e.g. titanium, magnesium and aluminum alloys) and shape memory alloys, to name a few. On the one hand, extended defects such as dislocations and internal interfaces (e.g., stacking faults, grain boundaries and triple junctions, hetero-phase interfaces) have been frequently utilized to direct nucleation and tune the number density, size, shape, orientation and spatial distribution of desired phases and thus mechanical properties. On the other hand, crystalline defects of a specific characteristic (s) generated during TMP could be desired for improving materials properties as well (e.g., grain boundaries with low-index plane demonstrate strong resistance to crack propagation and corrosion in harsh service environment)

The symposium aims at providing a forum for discussion of current research efforts that bring together state-of-the-art characterization tools (such as in-situ transmission electron microscopy, aberration-corrected scanning/transmission electron microscopy and atom probe tomography) and computational tools (including DFT, MD, Phase-Field and Machine Learning) for fundamental understanding of defect-microstructure interactions and the corresponding defect engineering strategies to design new microstructures, both homogeneous and heterogeneous / hierarchical for unprecedented properties.

Abstracts Due 07/20/2020
Proceedings Plan Planned:

Anisotropic Thermal Lattice Expansion and Crystallographic Structure of Strontium Aluminide within Al-10Sr Alloy as Measured by In-situ Neutron Diffraction
Assessment and Design of Complex Microstructural Features in Zirconia Shape Memory Ceramics via Elasto-Plastic Phase-field Modeling
Characterizing and Modeling Collective Atomic Displacements during Grain Boundary Migration
Deformation Induced Precipitation (DIP): A Cohesive Processing Strategy to Strengthen Magnesium Alloys
Development of Superalloys Driven by Atomic-scale Interactions of Solutes with Crystal Defects
Evolution of Metastable Grain Boundaries and Its Implications on Nanocrystals’ Hardness Variation
Evolving Core Structures in Dislocation-twin Boundary Interactions
Exploring the Microstructure of Sputtered Nanotwinned Alloys and Its Role in the Study of Dislocation-Twin Interactions
Grain Boundary Segregation for Thermal Stability in Ternary Nanocrystalline Alloys
Grain Boundary Segregation in Immiscible Alloys: Anisotropy and Trijunction Effects
High-temperature Bulk Dislocation Dynamics in Aluminum
Interaction between Martensite Transformation and Ion-induced Damage in Shape Memory Alloys
Interactions between Lattice Dislocations and 3D Metallic Interfaces
Interfacial Segregation and Segregation-induced Transitions in a Polycrystalline Grain Boundary Network
Investigation of Nucleation Mechanisms Associated with Formation of Co-precipitates in Ni-based Superalloys
Kinetic Monte Carlo Simulations of Solute Clustering in Multicomponent Al Alloys
Microstructural Evolution of Nanotwinned Al-Zr Alloy with Significant 9R Phase Stabilization
Microstructure and Tensile Behavior of Nanostructured Gradient TWIP Steel
New Insights into The Effect of Solutes on Twinning in Ti Alloys
New Insights on Deformation Twinning- Mechanisms and Modeling
Phase Transformation Pathways in High Entropy Alloys or Complex Concentrated Alloys mediated by Defects
Pseudo-in situ Characterization of Phase Transformation in an Al-Cu-Mn-Zr Alloy Using Atom Probe Tomography
Pseudoelastic Response of Ion-implanted Nickel-titanium Shape Memory Alloy: Combining Experimentation and Forward Modeling
The Effects of Defect Structure on Transformation Properties in NiTi Alloys for Phase Change Thermal Management Applications
Tuning Fine-scale Alpha Microstructures via Nano-scale Structural and Compositional Non-uniformities in Beta Titanium Alloys
Twin Boundaries Continue to Surprise Us: Understanding Type II Twin in NiTi and {1012} Twin in HCP Materials

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