Magnesium Technology 2000: Proceedings of the Symposium Sponsored by the Light Metals Division of the Minerals, Metals & Materials Society (Tms) and the ... Magnesium (Magnesium Technology 2000)

Cover 1 Title Page 5 Copyright Page 6 PREFACE 7 ACKNOWLEDGEMENTS 9 TABLE OF CONTENTS 11 Session One: Electrolytic Technology 15 Magnesium Industry Growth in the 1990 Period 17 Magnesium Electrolysis—A Monopolar Viewpoint 27 Investigation on Electrocatalysis for Energy Saving in Magnesium Electrolysis 31 An Inert Metal Anode for Magnesium Electrowinning 35 The Magnola Demonstration Plant: A Valuable Investment in Technology Development and Improvement 41 Magnesium Electrolytic Production Process 45 Solid-Oxide Oxygen-Ion-Conducting Membrane (SOM) Technology for Direct Reduction of Magnesium from Its Oxide (Extended Abstract) 49 Comparison of Fused Cast Alumina Products for Magnesium Chloride Cells (Abstract Only) 51 Session Two: Thermal Reduction and Environmental Issues 53 Fundamentals of Serpentine Leaching in Hydrochloric Acid Media 55 Reduction of Molten MgO-Bearing Slags with Ferroaluminum 67 Magnesium Metal by the Heggie-Iolaire Process 79 Protective Atmospheres for the Heat Treatment of Magnesium Alloys 85 The Use of SO2 as a Cover Gas for Molten Magnesium 91 EPA's Voluntary Partnership with the Magnesium Industry for Climate Protection 97 Session Three: Automotive Issues and Recycling 101 Materials Comparison and Potential Applications of Magnesium in Automobiles 103 Magnesium Melting/Casting and Remelting in Foundries 113 Conductivity Measurements on Ingots of Magnesium Die-Casting Alloys 121 Observations of Intermetallic Particle and Inclusion Distributions in Magnesium Alloys 127 Filling and Solidification Modeling of Noranda's Magnesium Wheel Casting Process 137 Utilization of Centrifugal Casting in Recycling of Magnesium Alloy Scraps (Abstract Only) 147 Session Four: Alloy Development and Corrosion 149 Corrosion and Galvanic Corrosion of Die Cast Magnesium Alloys 151 Laboratory Evaluation of Corrosion Resistance of Anodized Film on Magnesium 157 Characterisation of Manganese-Containing Intermetallic Particles and Corrosion Behaviour of Die Cast Mg-Al-Based Alloys 167 Characteristics and Perspectives of New Magnesium-Lithium-Alloys—An Approach Towards LAE 175 Microstructure Property Studies of In Situ Mechanically Worked PVD Mg-Ti Alloys 183 Studies of Mg-V and Mg-Zr Alloys 189 Solubility of Nickel in Molten Magnesium-Aluminum Alloys above 650°C 195 Design Magnesium Alloys: How Computational Thermodynamics Can Help 205 Session Five: Solidification 213 Solidification Induced Inhomogeneities in Magnesium-Aluminum Alloy AZ91 Ingots 215 Grain Refinement of Magnesium 225 Stress Induced Defect Formation in Horizontal Direct Chill Cast Magnesium Alloys 233 Casting of Granulated Magnesium and Magnesium Alloys by Centrifugal Spraying of Liquid Metal: Advantages and Limitations 243 Eutectic Growth Morphologies in Magnesium-Aluminum Alloys 247 The Role of Zinc in the Eutectic Solidification of Magnesium-Aluminum-Zinc Alloys 257 Session Six: Creep Properties and Heat Treating Effects 265 Preparation and Solidification Features of AS Series Magnesium Alloys 267 Development of High Creep-Resistant Magnesium Alloy Strengthened by Ca Addition 275 The Effect of Calcium on Creep and Bolt Load Retention Behavior of Die-Cast AM50 Alloy 285 Creep Resistance in Mg-Al-Ca Casting Alloys 293 Tensile and Compressive Creep Behavior of Die Cast Magnesium Alloy AM60B 299 On the Relation Between Hardness and Yield Strength in a Sand Cast AZ91 Alloy 305 The Effect of Low-Temperature Ageing on the Tensile Properties of High-Pressure Die-Cast Mg-Al Alloys 309 Microstructural Study and Mechanical Properties of a Thixoformed AZ91 315 Session Seven: Physical and Mechanical Properties 323 Wear Resistance Property and Microstructure of Magnesium AZ91 Composite 325 Elements of the Fatigue Process in Magnesium Die Casting Alloys 333 Fracture Toughness of Magnesium Alloy AM60B 339 Using Deformation-Induced Texture as an Alloy/Process Optimization Tool 345 Superplasticity of Magnesium-Based Alloys 355 Fatigue Behavior of AZ91D Magnesium Alloy and Its Composite Reinforced with SiC 359 Session Eight: Wrought Alloys and Thixomolding 363 Alternative Ways to Fabricate Magnesium Products 365 Flow Stress Microstructures and Modeling in Hot Extrusion of Magnesium Alloys 369 Deformation Characteristics of Wrought Magnesium Alloys AZ31, ZK60 377 Environmental Effects on the HCF Behavior of the Magnesium Alloys AZ31 and AZ80 389 Structure and Mechanical Properties of Friction Stir Weld Joints of Magnesium Alloy AZ31 397 New Developments in Magnesium Production Technology 403 Mechanical Properties and Microstructure of Heat-Resistant Mg-Al-Ca Alloys Formed by Thixomolding 409 Development of Semi-Solid Molded Magnesium Components from Alloys with Improved High Temperature Creep Properties 417 Author Index 425