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Meeting 2012 TMS Annual Meeting & Exhibition
Symposium Magnesium Technology 2012
Presentation Title Effect of Thickness on the Morphology and Corrosion Behavior of Cerium-Based Conversion Coatings on AZ31B Magnesium Alloy
Author(s) Carlos E. Castano, Surender Maddela, Matthew J. O'Keefe, Yar-Ming Wang
On-Site Speaker (Planned) Carlos E. Castano
Abstract Scope Cerium-based conversion coatings (CeCC) were deposited onto AZ31B magnesium alloy substrates using a spontaneous reaction of CeCl<SUB>3</SUB>, H<SUB>2</SUB>O<SUB>2</SUB> and gelatin in a water-based solution. The coating thickness was adjusted by controlling the immersion time in the deposition solution. Prior to deposition, the surface of the AZ31B substrates were treated using an acid pickling in nitric acid and then an alkaline cleaning in sodium metasilicate pentahydrate. After deposition, the coated samples were immersed in a phosphate bath that converted cerium oxide/hydroxide into cerium phosphate. Electrochemical impedance spectroscopy, potentiodynamic polarization, and neutral salt spray testing studies indicated that ~100 nm thick CeCC had better corrosion performance than ~400 nm coatings. The morphology of cerium-based conversion coatings was characterized by transmission electron microscopy (TEM) which revealed a structure consisting of three layers with different compositions.
Proceedings Inclusion? Definite: A combination print-CD volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Age Hardening Behavior of Mg-1.2Sn-1.7Zn Alloy Containing Al
An Elasto-Plastic Micromechanical Method for Twin Driven Plasticity
Anomalous Twin Bands in AZ31 Mg Sheet Bending
Atoms-to-Grains Corrosion Modeling for Predictive Design of Mg-Alloys
AZ31 In-situ Analysis of the Tensile Deformation Mechanisms in Mg-1Mn-1Nd(wt.%) between 50-250°C
Biaxial Deformation Behavior of AZ31Magnesium Alloy at High Temperature
Carbothermal Production of Magnesium: CSIRO’s MagSonic™ Process
Charge-Discharge Mechanism of MgC Powders and Mg-Li Alloy Thin Film Materials
Comparison of Tensile Properties and Crystallographic Texture of Three Magnesium Alloy Sheets
Control of Yttrium Diffusion Out of Yttria Stabilized Zirconia During SOM Electrolysis for Magnesium Production
Corrosion Behavior of Various Steels by AZ31 Magnesium Melt
Corrosion of Ultrasonic Spot Welded Joints of Magnesium to Steel
Demonstration of Solar-Pumped Laser-Induced Magnesium Production from Magnesium Oxide
Development of High Strength and Toughness Magnesium Alloy by Grain Boundary Control
Diffusion Couple Investigation of the Mg-Zn System
Effect of Ca Addition on the Microstructural and Mechanical Properties of AZ51/1.5 Al2O3 Magnesium Nanocomposite
Effect of Corrosion on the Tensile Properties of Friction-Stir Welded AZ31B Sheet
Effect of Extrusion Conditions on Microstructure and Texture of Mg-1% Mn and Mg-1% Mn-1.6% Sr Alloys
Effect of Intensive Melt Shearing on DC Cast Ingots of Magnesium Alloys
Effect of Rolling Temperature on the AZ31B Magnesium Alloy Microstructure
Effect of Sn4+ Additives on the Microstructure and Corrosion Resistance of Anodic Coating Formed on AZ31 Magnesium Alloy in Alkaline Solution
Effect of Some Microstructural Parameters on the Corrosion Resistance of Magnesium Alloys
Effect of Strain Rate on Dynamic Recrystallization in Magnesium under Compression at High Temperature
Effect of Strain Rate on the Kinetics of Hot Deformation of AZ31 with Different Initial Texture
Effect of the Solidification Rate on Microstructure of Cast Mg Alloys at Low Superheat
Effect of Thickness on the Morphology and Corrosion Behavior of Cerium-Based Conversion Coatings on AZ31B Magnesium Alloy
Effect of Weld Structure on Fatigue Life of Friction Stir Spot Welding in Magnesium AZ31 Alloy
Effect of Zinc Content on the Microstructure and Mechanical Properties of Extruded Mg-Zn-Y-La Alloys with LPSO Phase
Effect of Zn Concentration and Grain Size on Prismatic Slip in Mg-Zn Binary Alloys
Effects of Ca on Microstructure and Mechanical Properties of ZA62 Alloys
Effects of Direct Extrusion Process on Microstructure, Texture Evolution and Yield Strength of Magnesium Alloy AZ31
Effects of High Temperature Shot Peening on Surface Characteristics and Fatigue Properties of Forged AZ31 Magnesium Alloys
Effects of Orientation on Corrosion Behavior of Magnesium Single Crystals
Effects of Si on Microstructure and Mechanical Properties of Mg-5Sn-2Sr Alloy
Electrochemical Investigation on Chlorine and Electrolyte Intercalation into Graphite Anodes during Magnesium Electrolysis Process
Enhancement of Strength and Ductility of Mg96Zn2Y2 Rolled Sheet by Controlling Structure and Plastic Deformation
Evaluating the Effect of Pre-Ageing Deformation on β' Precipitate Size and Distribution in Mg-Zn(-Y) Alloys
Experimental Investigations on the Deformation Behavior of Thixo-Molded Mg Sheet Alloy
Experimental Study on Magnesium Extracted from Ascharite Mineral by Aluminium
Fluid Bed Dehydration of Magnesium Chloride
Formation of Nano-Scale Twins and Low Angle Grain Boundaries during Fracture of Fine Grained Magnesium Alloys
Grain Evolution During High Temperature Necking of Magnesium Alloys
High-Capacity Hydrogen-Based Green-Energy Storage Solutions for the Grid Balancing
High Performance Mg-System Alloys for Weight Saving Applications: First Year Results from the GREEN METALLURGY EU Project
High Speed Rolling of AZ31 and Mg-Zn-Ce Alloys
Hot Formability Curves for Four Mg AZ31B Sheets Obtained by the Pneumatic Stretching Test
Impact and Energy Dissipation Characteristics of Squeeze and Die Cast Magnesium Alloy AM60
In-Vitro Corrosion Studies of Bioabsorbable Magnesium Alloys
Influence of Aluminum Content on Corrosion Resistance of Mg-Al Alloys Containing Copper and Zinc
Interdiffusion and Phase Formation in the Mg-Y System
K-10: Effect of Grain Refinement and Texture Changes Induced by Burnishing on Corrosion Resistance of Magnesium Alloy for Biomedical Applications
K-11: Effect of Heat Input on Microstructure and Mechanical Properties of Pulsed TIG Welded AZ31 Magnesium Alloys
K-12: Effect of Zn Concentration on the Microstructures and Mechanical Properties of Extruded Mg–Y–Gd–Zr Alloys
K-13: Effects of Friction Stir Process on the Tensile Properties of AZ61 Magnesium Alloy at Room Temperature to 200℃
K-14: Enhanced Corrosion Resistance of AE42 Magnesium Alloy Achieved by SPD
K-15: Eutectic Formation in Binary Alloys
K-16: Finite Element Analysis of the Evolution of Damage during Equal Channel Angular Pressing of a Mg–3Al–1Zn Alloy
K-17: High Strength Magnesium Alloys as Light Weight Advanced Structural Materials for Automotive and Aerospace Applications
K-18: Hot and Cold Deformation of Twin Roll Cast AZ31 Magnesium Alloy: Modeling and Experiments
K-19: Improved Sintering of Mg Powder Metallurgy Compacts by Thermal Pretreatment
K-1: Characteristics of β' Phase in an Aged Mg-10Gd-3Y-0.5Zr Alloy
K-20: Influence of Section Thickness on Microstructure and Mechanical Properties of Squeeze Cast Magnesium Alloy AM60
K-21: Influence of Zinc-Yttrium Ratio and Cerium on the Mechanical Properties of Hot Rolled and Friction Stir Processed Mg-Zn-Y Alloys
K-22: Insights into the Nucleation of Extension Twins in Mg Alloys
K-23: In Situ Quantitative Tension and Compression Study on Twinning and Detwinning in Submicron-Sized Mg Crystals inside a Transmission Electron Microscopy
K-24: Investigation of Mechanical Properties of AZ31 Mg Alloys Coated by Plasma Electrolytic Oxidation
K-25: Investigation of the Corrosion for Mg–Li-xGd–yY (x=7、8、9、10、11 wt%；y=1、2、3、4、5 wt%) Alloys
K-26: Magnesium Recycling of Partially Oxidized, Mixed Magnesium-Aluminum Scrap through Combined Electrorefining and Solid Oxide Membrane (SOM) Electrolysis Processes
K-27: Measuring Heat Transfer during Twin Roll Casting of Metals
K-28: Mg-Rich Region of the Mg-Gd-Al and Mg-Gd-Sn Ternary Phase Diagrams
K-29: Microstructure and Mechanical Properties of Mg-5Sn-5Zn-xCa Alloys
K-2: Coherency Strain and Interfacial Energy of Mg3–Rare Earth D019 Precipitates from First-Principles
K-30: Microstructure and Mechanical Properties of Nanocrystalline Pure Mg via Cryomilling, Spark Plasma Sintering and Extrusion
K-31: Microstructures and Mechanical Properties of Rapidly Solidified Mg-RE Base Alloy Powder Produced by Using LME Method
K-32: Microstructure and Texture Effects on the Deformation Behaviors of the Statically Recrystallized Mg-Zn-MM Alloy Sheets
K-33: Modeling of Deformation Behavior of Multiphase Wrought Magnesium
K-34: Nanostructure Formation in a Quenched Mg Alloy
K-35: One-Step Approach to Enhance Corrosion Resistance of Coating Layer on AZ91 Mg Alloy via Plasma Electrolytic Oxidation in Electrolyte Containing Ammonium Vanadate
K-36: Phase Dissolution of γ-Mg17Al12 during Homogenization of As-Cast AZ80 Magnesium Alloy and Its Effect on Room Temperature Mechanical Properties
K-37: Precipitation Formation and Grain Refinement of Mg-Al-Sn Alloy during Hot Deformation
K-38: Production of Mg-Ni Alloy by Consumable Cathode Molten Salt Electrolysis
K-40: Secondary Ion Mass Spectrometry for Mg Tracer Diffusion: Issues and Solutions
K-41: Semisolid Joining of Magnesium AZ91 Alloy by Partial Remelting and Mechanical Stirring
K-42: Severe Plastic Deformation of Magnesium Alloys by Machining
K-43: Slip and Twin Behavior of Magnesium Single Crystals
K-44: Stress Corrosion Cracking Susceptibility of Ultrafine Grained AZ31
K-46: The Investigation of Twin Interface Structure in AZ31 Magnesium Alloys
K-4: Corrosion Behavior of Pure Mg Extrudate
K-5: Critical Grain Size for Change in Tensile Deformation Behavior and Transition in Tension- Compression Asymmetry in a Magnesium Alloy
K-6: Doping Effect on the Formation Energy of the Basal-Plane Stacking Faults in Binary Mg-X Alloys: First-Principles Calculations
K-7: Ductility Improvement in Equal Channel Angular Processed AZ31 Magnesium Alloy
K-8: Effect of CaO on Creep Behavior of Magnesium Alloys
K-9: Effect of Gadolinium and Yttrium Content on Microstructure and Strength of Mg-Li Alloys
Length Changes in Extruded Magnesium Alloy Bars Under Large Strain Free-End Torsion
Magnesium Alloy Development Using Phase Equilibria Computation and Microstructure Validation
MagSonic™ Carbothermal Technology Compared with the Electrolytic and Pidgeon Processes
Mathematical Modeling of the Twin Roll Casting Process for AZ31 Magnesium Alloy – Effect of Set-Back Distance
Mechanical and Corrosion Properties of As-Cast and Extruded MG10GD Alloy for Biomedical Application
Mechanical Properties and High-temperature Oxidation Behaivor of Mg-Al-Zn-Ca-Y Magnesium Alloys
Mechanical Properties of Newly Developed Mg-Alloys AMX602 AND ZAXE1711 under Quasi-Static and Dynamic Loading
Mechanism of Carbothermic Reduction of Magnesia and Reverse Reaction
Microstructural Characteristics of High Rate Plastic Deformation in Elektron WE43 Magnesium Alloys
Microstructural Characterization of Homogenised and Aged Mg-Gd-Nd Alloys Containing Zn, Y and Zr
Microstructure and Creep Properties of MEZ Magnesium Alloy Processed by Thixocasting
Microstructure and Mechanical Properties of As-Extruded Mg-Sn-Al-Zn Alloys
Microstructure and Mechanical Properties of High Pressure Die Cast AM50 Magnesium Alloy Containing Ce
Microstructure Modeling of Magnesium Alloys for Engineering Property Prediction
Microstructure Modification and Deformation Behavior of Fine-Grained AZ61 Sheet Produced by Thixomolding and Thermomechanical Processing (TTMP)
Molten Salt Electrolysis of MgCl2 in a Cell with Rapid Chlorine Removal Feature
Nano-Indentation Studies of Twinned Magnesium Single Crystals
Non-Basal Textures in Magnesium Alloy Strips by Extrusion-Machining
On the Deformed Microstructure of Rolled Mg-2.9Y
On the Effect of Ti2AlC on the Formation of Thermally Stable Mg Nano Grains
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Phase Field Modeling of β1 Precipitation in WE54 Alloy
Precipitation Behaviour of Micro-Alloyed Mg-Al-Ca Alloys during Heat Treatment and Hot Compression
Preparation of Aluminum-Magnesium Alloy from Magnesium Oxide in RECl3- LiF-MgF2 Electrolyte by Molten Salts Electrolysis Method
Production of Wide Shear-Rolled Magnesium Sheet for Part Forming
Reaction Sintering of Mg2Si Thermoelectric Materials by Microwave Irradiation
Research and Application of Mg Alloys for Aerospace
Scaling-Up Solid Oxide Membrane Electrolysis Technology for Magnesium Production
Sliding Wear Behavior of Squeeze Cast Magnesium Composite AM60-9% (Al2O3)f
Solid State Joining of Magnesium to Steel
Solidification Studies of Mg-Al Binary Alloys
Strain-Rate Effects of Sand-Cast and Die-Cast Magnesium Alloys under Compressive Loading
Strain Hardening of ZK60 Magnesium Alloys
Structural Origin of Reversible Twinning, Non-Schmid Effect, Incoherent Twin Boundaries and Texture of Hexagonal Close-Packed Metals
Study on the Thermodynamic and Experimental Carbothermic Reduction of Garnierite
Tensile Properties of Three Preform-Annealed Magnesium Alloy Sheets
Texture Evolution during Hot Deformation Processing of Mg-3Sn-2Ca-0.4Al Alloy
The Effect of Friction Stir Processing on Microstructure and Tensile Behavior of Thixomolded AZ91 Magnesium Alloy
The Effects of Strain and Stress State in Hot Forming of Mg AZ31 Sheet
The Elastic-Plastic Transition in AZ31 Magnesium Alloy
The Influence of Galvanic Current on Cerium-Based Conversion Coatings on Mg, Al, and Galvanized Steel Couples
The Role of Intermetallics on Creep Behaviour of Extruded Magnesium Alloys
Twin Roll Casting of Thin AZ31 Magnesium Alloy Strip with Uniform Microstructure and Chemistry
“Electroless” E-Coating for Mg Alloys
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