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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Defect and Phase Transformation Pathway Engineering for Desired Microstructures
Presentation Title Deformation Induced Precipitation (DIP): A Cohesive Processing Strategy to Strengthen Magnesium Alloys
Author(s) Suhas Eswarappa Prameela, Peng Yi, Laszlo J. Kecskes , Michael Falk, Timothy P. Weihs
On-Site Speaker (Planned) Suhas Eswarappa Prameela
Abstract Scope Unlike Aluminum alloys, precipitation strengthening of Magnesium alloys has proven challenging. Precipitate density is typically too low, and precipitate size is often too large and elongated to enhance the resistance to plastic deformation significantly. Mimicking recent work in Al alloys, we are exploring how low-temperature plastic deformation can enhance both the density, size, and morphology of common intermetallic particles and thereby lead to significant hardening in Mg alloys. The low temperatures tend to favor nucleation overgrowth, while the deformation provides vacancies and dislocations that can accelerate nucleation. Using varying levels of deformation, and moderate temperatures, we explore the processing and thermodynamic factors controlling nucleation and growth of precipitates in Mg-Al and Mg-Zn binary alloys.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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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