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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advanced Characterization Techniques for Quantifying and Modeling Deformation
Presentation Title The Dynamics of Plastic Deformation Delocalization in Solid Solution-Strengthened FCC Alloys
Author(s) Dhruv Anjaria, Michel Drouet, Milan Heczko, Maik Rajkowski, Aditya Srinivasan Tirunilai, Christophe Coupeau, Huseyin Sehitoglu, Guillaume Laplanche, Jean-Charles Stinville
On-Site Speaker (Planned) Dhruv Anjaria
Abstract Scope FCC alloy chemical compositions were identified that exhibit unusual plastic localization behavior, characterized by drastic homogenization of plasticity within the alloy microstructure, during deformation. To understand this process, single-crystal and polycrystalline CrCoNi specimens were subjected to monotonic loading at room temperature to identify the mechanisms that lead to such plastic homogenization. Scanning tunneling microscopy and high-resolution digital image correlation were used to evaluate the dynamics of the associated deformation processes and their dependence on crystallographic orientations. An unusual competitive deformation process between slip and nanotwinning is observed. Such a mechanism is noted to have unprecedented beneficial effects on the fatigue properties of the alloy, opening up a new design space for fatigue-resistant alloys.
Proceedings Inclusion? Planned:
Keywords Mechanical Properties, Characterization,

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D In­Situ Characterization of Twinning in Neighboring Mg­-4Al Grains Using Dark­-Field X-­Ray Microscopy
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Accelerating Magnesium Alloy Research: Simulation-Assisted HEDM Experiments and Data Practices
Advanced EBSD-Based Identification of Deformation Twinning Using MTEX
Advanced SEM-Based Multimodal Characterization Approach of The High Temperature Behaviour of Additively Manufactured GRX-810
Application of a Linear Homography Based Approach for Absolute Residual Deformation Extraction from Electron Backscatter Diffraction Patterns
Application of Mechanical Equilibrium to Correct HR-EBSD and 3D-XRD Stress Measurements
Application of X-Ray Microscopy and Machine Learning in Analyzing Metal Matrix Syntactic Foams
Characterization of Nanoscale Dislocation Loops Via High-Accuracy g·b Analysis with Higher Order Reflections
Characterizing the Localized and Stress-Induced χ Phase Transformation in a Ni-Based Superalloy
Correlative 4DSTEM Study of Deformation Near Serrated Grain Boundaries
Deformation Micromechanisms in Different Generation Ni-Based Single Crystal Superalloys with a Focus on TMS-238 Specific Behavior
Dislocation Mobility in FeCr Alloys: Stress Correlation Effects in Discrete Dislocation Dynamics Simulations
Dislocation Structures and Their Effect on Work-Hardening in Deformed High Purity Iron
Dynamics of Portevin-Le Chatelier Banding Revealed Through Grain Refinement in High-Mn Austenitic Steel: Sequential Overcoming of Necking
Elasto-Visco-Plastic Modeling of Dual Phase Steel
Enabling Micro-Thermomechanical Modelling Using a Novel Continuous-Wave Laser and SEM Coupling
Enabling Plane Strain Fracture Testing in Size-Limited Specimens Via Electrodeposition-Based Constraint Restoration
Evaluation of Machining Deformation in High Temperature Superalloys Using Grazing-Incidence X-Ray Diffraction Methods
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Examining the Intragranular Elastic Strain Fields Ahead of a Small Fatigue Crack in Pure Nickel Using Point Focused X-Ray Diffraction Microscopy
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G-1: A Combined Experimental and Computational Study on Quench Cracking Characterisation and Martensite Evolution in Bearing Steels
G-2: Characterization of Active Slip Systems in Mg-Y Alloys Via In Situ Micropillar Tension of Single- and Bi-Crystals
G-38: Microstructural Characterization and Crystal Plasticity Modeling for Ti-6Al-4V for Predicting Forming Limit Diagrams.
G-3: Dynamic Grain-Boundary Strengthening Contributes to Hardening During Microindentation
G-4: Measuring and Modeling Geometrically Necessary Dislocation Densities in Magnesium Alloys Using EBSD and PRISMS-Plasticity
G-5: On the Role of Slip and Interfaces on Plastic Localization Behavior in Ferritic-Martensitic Steels for Next-Generation Nuclear Reactors
G-6: Revealing Dissolution and Reprecipitation Behaviors of Inert Phases in LPBF Structures via Extraction Replication
G-7: Study on Microscale Strain Localization and Slip Activity in Ferritic AISI 420 Steel Via Digital Image Correlation and Crystal Plasticity Modeling
G-8: Xtending the LAPX Model for the Prediction of Creep of Ni-Superalloys Using High Performance Computing
High-Resolution, Correlative 4D STEM Orientation Analysis with STEMx OIM and DigitalMicrograph
In-Situ Characterization and Modeling of Molecular Crystal Mechanical Response
In-Situ Material Characterization of Steel Through High-Speed Imaging During Orthogonal Cutting
In-Situ TEM Investigation of Fracture Growth in Novel Nanolaminate Thin Films
Influence Of Multiaxial Deformation and Temperature on the Extent Of Strain-Induced Martensitic Transformations in Stainless Steels: Experiments and Crystal Plasticity Modeling
Intragranular Evolution of Slip System Strength and Activity in Titanium Using Point-Focused High-Energy Diffraction Microscopy
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Plastic Deformation Mechanisms of Mg-5.2Li Alloy Single Crystals Along Different Orientations Studied by Micropillar Compression
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The Dynamics of Plastic Deformation Delocalization in Solid Solution-Strengthened FCC Alloys
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