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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Magnesium Technology 2023
Presentation Title E-25: Simulations of Microgalvanic Effects in Corrosion of Mg Alloys
Author(s) Vishwas Goel, Yanjun Lyu, David Montiel, Katsuyo Thornton
On-Site Speaker (Planned) Vishwas Goel
Abstract Scope We employed a phase-field model implemented within the PRISMS-PF framework to investigate corrosion in Mg alloys. When the corrosion rate was limited by the cathodic reaction, an increase in cathodic-phase fraction led to a higher corrosion rate due to an increase in the cathodic-phase/electrolyte interfacial area. Additionally, we observed an acceleration in corrosion as the anodic phase corroded and exposed more of the cathodic phase to the electrolyte. The distribution of the corrosion current, as well as the morphology of the corroded surface, infer an existence of two length scales, one that is small and is associated with a larger corrosion current near the triple phase boundary, and the other on a larger scale, greater than the simulation domain size we examined. The study was conducted in two- and three-dimensions, both of which exhibited similar corrosion behavior.
Proceedings Inclusion? Planned:
Keywords Magnesium, Modeling and Simulation, Other

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Comparative Corrosion Study of Magnesium Alloys Processed via Shear Assisted Processing and Extrusion
A Comparative Study about Hydroxyapatite Coated AZ31 and AZ91 Mg Alloys
A Theoretical Model for Predicting Stacking Fault Energies of Ternary Magnesium Alloys Based on High-throughput Calculation and Machine Learning
Advances in Magnesium Primary Production by Reactive Cathode Molten Salt Electrolysis with G-METS Distillation
Barrel Finishing of Magnesium Alloys
Combined Effect of Alloying and Grain Size on the Deformation Behavior of Magnesium Alloys
Design of the Continuous Gravity-driven Multiple Effect Thermal System (G-METS) for Efficient Low-cost Magnesium Recycling
Designing Highly Corrosion-resistant Mg Alloys via Second-phase Control
Development of Compound-vertical-retort Technology for Magnesium Production and its Application
Development of Magnesium-Strontium / Calcium (Mg-Sr/Ca) Based Alloys with Improved Sinterability for Next Generation Biomedical Implants
Development of Mg-based Superelastic Alloy through Aging Heat Treatment
E-13: Advanced In-situ Investigation of Deformation Behavior in a Textured Magnesium Alloy AZ31
E-14: Critical Resolved Shear Stresses for Slip and Twinning in Mg-Y-Ca Alloys and Their Effect on Ductility
E-15: Effect of Differential Speed Rolling (DSR) on the Dynamic Recrystallization of Mg5Zn Under Different Temperatures
E-16: Effect of Grain Size on Bio-corrosion Properties of AZ31 Magnesium Alloy
E-17: European Sustainable Magnesium from Chromite Production and Dolomite Excavation Residues
E-18: Flammability Resistant Magnesium Alloys Processed by Equal Channel Angular Pressing
E-19: Formation of CO2 Absorption Induced Corrosion Resistant Magnesium Carbonate Layer Formation on Various Magnesium Alloys
E-20: In Vitro and In Vivo Degradation Behavior of Novel Corrosion-resistant Mg Alloys
E-21: Investigating the Corrosion Response of Cast and Extruded ZK60 Magnesium Alloy Processed via Shear Assisted Processing and Extrusion
E-22: Investigation of Transformation-mediated Nanotwin Nucleation Mechanisms in Magnesium Using Deep Neural Network Interatomic Potentials
E-23: Kink Bands Strengthening of LPSO Mg-Zn-Y alloys After Processing by High-pressure Sliding (HPS)
E-24: Nucleation of {1012} Twins in Magnesium Through Reversible Martensitic Phase Transformation
E-25: Simulations of Microgalvanic Effects in Corrosion of Mg Alloys
E-26: Strain Rate Dependent Deformation Behavior and Microstructure Evolution of Magnesium Alloys
E-27: Strain-localized Deformation Banding during Tensile Deformation of Pre-compressed AZ31 Mg Alloy
E-28: Towards Improved Understanding of Press and Sinter Processing of Mg and Mg Alloy Powders
E-29: Understanding the Influence of Alloying on Texture Development in Mg-(Zn-Ca) Alloys During Recrystallization
Effect of Deformation Speed on Stress Corrosion and Fracture Toughness of Extruded Mg10Dy and Mg10Dy1Nd using C-ring Tests
Effect of Second Phases Evolved Through Heat Treatment on Mechanical and Bio-corrosion Behaviour of a Mg-Zn-Ca-Mn Alloy
Effects of Ca and Zn Additions on the Static Recrystallization Kinetics and Texture Evolution in Wrought Magnesium Alloys
Engineered Bioabsorption for Implant Applications
In Situ Study of the Degradation Behaviour Under Load of Mg1.8Y0.6Zn(1Ag) Using Synchrotron Tomography
In Vitro Degradation Assessment of Magnesium Wire in Sternal-closure-like Conditions
Influence of Corrosion Extent on Residual Tensile Strength and Corrosion Fatigue Properties of an Mg-Y-Nd Alloy Characterized by µCT
Influence of Preforging in Extrusion as well as in Equal-channel Angle Extrusion (ECAPEX) on the Properties of Magnesium Rods
Integrating Multimodal Corrosion with Correlative Microscopy Across Multiple Length Scales
Metastable – stable
Microstructure and Properties of Wrought Mg-Gd-Y-Zn-Zr Alloy (VW94) Alloy
Multiscale, Multimodal Characterization of Recrystallized and Non-recrystallized Grains during Recrystallization in a Hot-compressed Mg-3.2Zn-0.1Ca wt.% Alloy
Open-air Plasma Assisted Si-O-C Layer Deposition on AZ91D Mg Alloy for Corrosion Mitigation
Optimization of the Microstructure and Performance of Aluminum Alloy Cold Spray Coatings on Magnesium Alloys
Precipitation Behavior in Low-alloyed Mg-Ca-Zn Alloys
Processing Map and Performance of a Low-cost Wrought Mg Alloy: ZAXEM11100
Protective Micro-arc Oxidation Surface Coating on AZ80 Forged Magnesium Alloy
Quantifying the Role of Coarse Intermetallic Particles on Twinning Behavior
Recent Advances in PRISMS-plasticity Software for Simulation of Deformation in Mg Alloys
Reductant Consideration in Thermal Pathways to Primary Magnesium Metal Production
Solid Phase Processing of Mg-Al-Mn-Ca for High Strength and Ductility
Sustainable Domestic Manufacturing and Protecting IP in a Post-AIA World
The Effects of Temperature and Strain Rate on the Tensile Behaviour of Die-cast Magnesium Alloy AE44
The Mechanisms to Improve Creep Resistance in a Die-cast MgREMnAl Alloy

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