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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium 2018 Technical Division Student Poster Competition
Presentation Title SPG-41: Simulating Dislocation Patterning at the Micro Scale Using the Schnakenberg Model
Author(s) Aaditya Lakshmanan, Veera Sundararaghavan
On-Site Speaker (Planned) Aaditya Lakshmanan
Abstract Scope The deformation behavior of crystalline solids in the plastic regime is primarily driven by dislocation dynamics. A number of localization phenomena can be directly attributed to the collective behavior of dislocation populations forming patterns, which makes appropriate modeling of dislocation dynamics important, albeit in a homogenized sense. Analogy is established between interacting dislocation populations and similar phenomena occurring in chemical and biological processes, where reaction-diffusion models have played a vital role. The present study aims at exploring reaction-diffusion equations for modeling the dynamics of dislocation populations, physically motivated by the characteristics of individual dislocations. The emergence of stable patterns from the homogeneous equilibrium state is interpreted as a Turing instability, and modeled using a semi-implicit finite difference scheme. The corresponding parameter space is explored to establish necessary conditions for pattern formation, and their physical interpretation is outlined.
Proceedings Inclusion? Undecided


SPG-11:Microstructural Stability of SSC Fibrous Cathode with Embedded SDC Particles for Solid Oxide Fuel Cells Operating on Hydrogen
SPG-12: Microstructure and Texture Behavior of P-type Bi2Te3-Sb2Te3 Alloy by Hot Extrusion
SPG-13: Oxidative Unzipping and Transformation of High Aspect Ratio Boron Nitride Nanotubes into White Graphene Oxide Platelets
SPG-14: Oxide Rate of (111), (100) and Random Copper Films at Low Temperatures for the Application of Cu-to-Cu Direct Bonding
SPG-15: Synthesis and Evaluations of Photocatalytic Activity of Au/ZnO/Silk Textile Hybrid Layered Structure for Flexible Multifunction Device Applications
SPG-16: Synthesis and Processing of NaSICON/Polymer Membranes
SPG-17: Using Cellulose Nanocrystals (CNCs) with Portland Cements – Effect on Rheology
SPG-19: Effect of Magnetic Field on the Tensile Properties of Friction Stir Processed 1100 Aluminum Alloy
SPG-1: Diffusion of Cr in the Alloys during Corrosion in MgCl2-KCl Molten Salt
SPG-20: Modelling of Precipitate Evolution and Yield Strength of a Friction Stir Welded Al-Cu-Li Alloy
SPG-21: A General Multiphase Model for Macrosegregation and Columnar to Equiaxed Transition in Alloy Solidification
SPG-22: Effects of Strain Localization & Processing on the Corrosion of Nanostructured Aluminum
SPG-23: Effects of Variable and Constant Sealing Force Techniques for Studying the Formability Using Square Cup Die in Hydroforming of Cryorolled Al-Mg Alloy Sheets in FE Simulation
SPG-24: Fatigue Behavior of Ultrafine Grained Al0.3CoCrFeNi High Entropy Alloy
SPG-25: In-situ Strengthening of High Entropy Alloys by Friction Stir Processing
SPG-27: Microfract: An Image Based Code for Micro-crack Path Prediction for Multi-phase Materials
SPG-28: Microstructure and Mechanical Properties of Inconel 718 Produced by Selective Laser Melting: Sample Orientation Dependence and Effects of Post Heat Treatments
SPG-29: The Effect of Co Content on Fabrication of Full-scale High-performance Alnico Magnets with Near-final Shape
SPG-2: Electrochemical Reduction of Metal Oxides in Molten Salt
SPG-30: Towards a Standardized Technique of Determining Nanoindentation Derived Stress-Strain Curves of Metal Powder Particles
SPG-31: A Mechanism Study of Electromigration Effect: An In Situ Current Stressing Study
SPG-32: A Phase-field Study on the Role of Lattice Misfit on the Microstructural Stability in Ni-based Single Crystal Superalloys
SPG-33: Effects of Ar Ion Irradiation on Microstructural and Mechanical Properties of Zr-0.33wt.% Sn Alloy Probed through PAS, GI-XRD, Pico-indentation and TEM
SPG-34: Geometrical Effect on the Energetic Size Effect Law
SPG-35: Low Cycle Fatigue Behaviour and Micromechanics of a Beta Titanium Alloy Ti-5Al-5Mo-5V-3Cr
SPG-36: Markov Random Field Approach For Three-dimensional Microstructure Reconstruction
SPG-38: Microstructural Characterization of W-ODS Materials for Nuclear Applications
SPG-39: Prediction of Single Crystal Properties of Aluminum-Lithium Alloy Using a Stochastic Inverse Model
SPG-3: Nano Computed Tomography Characterization of Additive Manufactured Metal
SPG-40: Radiation Resistant Nanostructured 304 Austenitic Steel Prepared Using ECAP and HPT
SPG-41: Simulating Dislocation Patterning at the Micro Scale Using the Schnakenberg Model
SPG-42: The Microstructure Characterization and Precipitate Simulation of G115 Heat Resistance Steel during Creep
SPG-4: Teaching Applied in the Characterization of SAE 1020 Steel Corrosion in Atmospheric Test and Salt Spray Testing
SPG-5: Thermodynamic Properties of Silicon-boron Binary Alloys Determined Using EMF Measurements
SPG-6: Characterization of Magnetic Microstructure in Co-Pt Nano-chessboards
SPG-7: Determination of Crystalline Domains Alignment in the Cellulose Nanocrystal Films with an Improved Birefringence Technique
SPG-9: Hygroscopic Swelling Determination of Cellulose Nanocrystal (CNC) Films by Polarized Light Microscope Digital Image Correlation
SPU-10: Porous Metal from Selective Dissolution of Al-Cu-Mg Alloy
SPU-11: Effect of Alumina Nanoparticles on the Portevin-Le Chatelier Phenomenon in Al-Mg Alloys
SPU-12: Influence of Titanium Substrate Surface Preparation on the Growth of Titanium Dioxide Nanotubes
SPU-13: Method to Increase Data Throughput of a Single Bending Fatigue Test
SPU-14: Structure and Ductility in Multicomponent B2-ordered Intermetallic Compounds
SPU-1: Determination of the Activation Temperatures of Group III and IV Metals via XPS
SPU-2: Fluorescence of Functionalized Carbon Nano-onions for Bioimaging Applications
SPU-3: Synthesis and Characterization of Chitosan-based Composites Containing TiO2 Nanoparticles and Their Antibacterial Activity
SPU-4: A Computational Study of Phase Evolution and Stability in Multi-Rare Earth Mg-Alloys
SPU-5: Fabrication of Novel Aluminum Welding Fillers Reinforced with NbB2 Nanoparticles
SPU-6: Influence of Volumetric Energy Density on Defect Formation and Crystallographic Texture Development in 3-D Printed Hastelloy-X
SPU-7: Investigating Damping Performance of Powder Bed Fused Inconel 718 with Unfused Internal Features
SPU-8: Laser Brazing of Nickel Superalloys with a Ni-Mn-Fe-Co-Cu High Entropy Alloy Nanopaste
SPU-9: Optimization of Anodization Parameters for Production of Titanium Dioxide Nanotube Arrays

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