Light Metals 2016

Front Matter....Pages i-xxv
Front Matter....Pages 1-1
An Improved Lime Sinter Process to Produce Al2O3 from Low-Grade Al-Containing Resources....Pages 5-9
Investigation of Flotation Behaviors of Refractory High-Silica Bauxite....Pages 11-14
Study on effective extraction of Al and Fe from high-iron bauxite through “calcification-carbonization” method....Pages 15-18
Ways to Improve of Aluminum Content Raw Material Treatment by Sintering Method....Pages 19-22
Extraction of Aluminium by Autoclave Hydrochloric Acid Leaching of Boehmite-Kaolinite Bauxite....Pages 23-28
FT-IR, XPS and Density Functional Theory Study of Adsorption Mechanism of Sodium Formate onto Goethite or Hematite....Pages 29-35
Effect of Different Silica Mineral Compositions on the Digestion Results in Bayer Process....Pages 39-43
Effect of Lime Addition during Digestion on Stability of Digested Liquor of Diasporic Bauxite....Pages 45-49
Influence Factors of Stirring Speed of Self-Stirring Tubular Reactor Used in Bauxite Digestion Process....Pages 51-55
Leaching Kinetics for Recovering Alumina from Waste Tricalcium Aluminate Generated after Filtration of Bayer’s Liquor....Pages 57-62
Industrial Implementation Characteristics of Aluminates Liquor Low-Temperature Desilication Technology....Pages 63-66
Study on the Influence of Chemical Additives during the Digestion of Bauxite....Pages 67-71
Going Far (Floating Alumina Refinery)....Pages 75-80
Sustaining Capital of Alumina Refinery Projects — Important but Unloved....Pages 81-83
Reaction behavior and conversion of anatase in alumina production process with calcification-carbonization method....Pages 85-90
Alkalinity Precipitation Measurement on Carbonation of Bauxite Residue....Pages 91-95
Extraction of alumina from the magnetic separation tailings derived from reductive roasting of bauxite residue....Pages 97-102
Research on activated alumina obtained by spray pyrolysis method....Pages 103-106
Front Matter....Pages 107-107
Characterization of Near Net-Shape Castable Rare Earth Modified Aluminum Alloys for High Temperature Application....Pages 111-114
On the Effect of Alloying Element Range on the Mechanical Properties of Recycled Aluminium Alloy EN AB-46000....Pages 115-120
Front Matter....Pages 107-107
Phase and Thermal Stability Analysis of Al-Fe-V-Si-Y Alloys After Solidification at Intermediate Cooling Rates....Pages 121-126
Microstructure and Phase Evolution in A201 Alloys with Additions of Silicon....Pages 127-130
High Temperature Creep Evolution in Al-Si Alloys Developed for Automotive Powertrain Applications: A Neutron In-Situ Study on hkl-Plane Creep Response....Pages 131-136
Influencing Intergranular Corrosion via Surface Treatment....Pages 139-143
Mechanical Characterization and Corrosion Testing of X608 Al Alloy....Pages 145-150
Simultaneous Improvement of Mechanical and Corrosion Properties of Aluminum Alloys....Pages 151-156
New Methodology to Determine Stable Texture Components under Cold Rolling in FCC Metals....Pages 159-161
Recrystallization in Al-Mg Alloys after Hot Compression....Pages 163-167
Large Strain Cyclic Simple Shear Behavior of Aluminum Extrusions: An Experimental and Numerical Study....Pages 169-174
Quasi and Dynamic Compression of ECAP Processed AA 6082....Pages 175-179
Study on Hot Sizing and Creep-Ageing Behavior of Al-Cu-Mn Cast Alloy....Pages 181-185
Grain Refinement Mechanism of Aluminum by Al-Ti-B Master Alloys....Pages 189-193
The Microstructures and Mechanical Properties of Al-5Mg-1.4Mn Alloy Cast under Near-Rapid Cooling....Pages 195-200
Effect of the Shape of Solid Particles on the Distribution of Particles in JIS AC4CH (A356) Aluminum Alloy Semi-Solid High-Pressure Die Casting....Pages 201-206
A High Strength Aluminium Alloy for High Pressure Die Casting....Pages 207-210
Precipitation of Al3Zr Dispersoids during Homogenization of Al-Zn-Cu-Mg-Zr Alloys....Pages 213-218
Application of Secondary Shear Effects in the Extrusion Machining Process to Explore Recrystallization Mechanics during Conventional Extrusion of 7050 Aluminum....Pages 219-224
Large Strain Extrusion Machining on 6013 Aluminum Alloy....Pages 225-229
Effect of Extrusion Ratio on Mechanical Properties of Al-20Si Produced by Spray Deposition and Continuous Extrusion Technique....Pages 231-234
The Influence of Low Temperature Clustering on Strengthening Precipitation in Al-Mg-Si Alloys....Pages 237-243
Front Matter....Pages 107-107
Synthesis of Al-TiC Nanocomposites by an In-Situ Gas-Liquid Method....Pages 245-254
Orientation Relationships of Precipitates with the Matrix in an Aluminum Quasicrystalline Alloy....Pages 255-258
Important considerations for laser marking an identifier on aluminum....Pages 261-264
Corrosion Resistance of Different Aluminum Alloys in Ethanol....Pages 267-270
Refinement of Primary Silicon Crystals by Novel Al-ZnS Master Alloy in Solidification of Hypereutectic Al-Si Alloys....Pages 271-273
Effects of Alloying Elements on Microstructure, Mechanical Properties and Formability of Al-Si-Fe-Cu-Mn Based Alloys for Micro-Channel Tube of Heat Exchanger....Pages 275-277
Front Matter....Pages 279-279
Conception of “Dream Cell” in Aluminium Electrolysis....Pages 283-288
The Impact of the Cavity on the Top Heat Losses in Aluminum Electrolysis Cells....Pages 289-294
Rio Tinto AP44 Cell Technology Development at Alma Smelter....Pages 295-300
Hydro’s Cell Technology Path towards Specific Energy Consumption below 12 kWh/kg....Pages 301-305
The Successful Implementation of DUBAL DX+ Technology at EMAL....Pages 307-311
Alumina Dissolution Modeling in Aluminium Electrolysis Cell Considering MHD Driven Convection and Thermal Impact....Pages 315-319
Numerical Investigation on the Impact of Anode Change on Heat Transfer and Fluid Flow in Aluminum Smelting Cells....Pages 321-325
On the Importance of Field Validation in the Use of Cell Thermal Balance Modeling Tools....Pages 327-332
Sideledge Facing Metal in Aluminium Electrolysis Cells: Freezing and Melting in the Presence of a Bath Film....Pages 333-338
Modelling of Metal Flow and Metal Pad Heaving in a Realistic Reference Aluminum Reduction Cell....Pages 339-344
Characterization of Bubble Behavior in Aluminum Reduction Cells....Pages 347-352
Elimination of Lithium from Aluminium Electrolyte by Acid Leaching Method....Pages 353-357
Impact of the Heat Flux on Solidification of Cryolite Based Bath....Pages 359-364
Investigation of Sodium Sulfate Additions into Cryolite-Alumina Melts....Pages 365-370
Front Matter....Pages 279-279
Polyvalent Impurities and Current Efficiency in Aluminium Cells: A Model Concerning Electrochemical Short Circuiting....Pages 371-376
Sodium in Aluminum Metal of Operating Prebake Cells: Confirmation and New Findings....Pages 377-382
The Performance of Aluminium Electrolysis in a Low Temperature Electrolyte System....Pages 383-387
The Role of Key Impurity Elements on the Performance of Aluminium Electrolysis — Current Efficiency and Metal Quality....Pages 389-394
Alcoa STARprobe™ — Update in Further Development for Measuring Cryolite Properties....Pages 397-402
Analysis and Visualization of Aluminum Reduction Cell Noise Based on Wavelet Transform....Pages 403-408
Study on Effect of Al-O-C Compound in Alumina Carbothermal Reduction....Pages 409-415
The Impact of Alumina Quality on Current Efficiency and Energy Efficiency in Aluminum Reduction....Pages 417-422
Sideledge Facing Metal in Aluminium Electrolysis Cells: Preliminary Modelling Study of Bath Film Formation....Pages 423-428
Pilot Test of Aluminum Electrolysis by the NiFe2O4-M Inert Anodes....Pages 429-431
Thermodynamic Analysis and Dynamic Simulation on Carbothermic Chlorination Reaction of Al2O under Vacuum....Pages 433-438
Design, Start-Up and Performance of Four Gas Treatment Centers for Ma’aden Aluminium....Pages 441-445
Management and Performance of the Largest Gas Treatment Centre at EMAL Potline during Major Shutdown of Main Exhaust Fans....Pages 447-452
Compact GTC Design: Reducing Footprint and Overall Steel Weight....Pages 453-456
Technology for Removal of Sulphur Compounds from Gases Generated during Aluminum Production....Pages 457-460
Sustainable Practices in Spent Potliner — An Industrial Ecology Approach....Pages 461-466
The LCL&L Process: A Sustainable Solution for the Treatment and Recycling of Spent Potlining....Pages 467-471
Development, Proof of Concept and Industrial Pilot of the New CHAC Scrubbing Technology: An Innovative and Efficient Way to Scrub Sulfur Dioxide....Pages 473-478
Aluminerie de Bécancour Conditioning Tower Replacement....Pages 479-483
Alumina Handling in the Smelter — From Port to Pot....Pages 487-492
Front Matter....Pages 279-279
Recent Developments in Hyper-Dense Phase Alumina Handling Systems....Pages 493-498
The Challenge to Supply Consistent Alumina Quality to All Pots on Increasingly Longer and Higher Capacity Potlines....Pages 499-503
Design and Demonstration of an Improved Automated Pot Tapping Method and Equipment....Pages 505-509
Evolution of Crust Breaker Control for DX+ and DX+ Ultra Technologies....Pages 511-514
SiC in Electrolysis Pots: An Update....Pages 515-517
Assessing the Role of Smelter Grade Alumina Porosity in the HF Scrubbing Mechanism....Pages 521-525
The Competitive Adsorption of HF and SO2 on Smelter Grade Alumina....Pages 527-531
Evaluation of Gas Composition from Laboratory Scale Electrolysis Experiments with Anodes of Different Sulphur Content....Pages 533-536
Sustainable Reduction of Anode Effect and Low Voltage PFC Emissions....Pages 537-540
QCL-Based Perfluorocarbon Emission Monitoring....Pages 541-544
Using Artificial Neural Network to Predict Low Voltage Anode Effect PFCS at the Duct End of an Electrolysis Cell....Pages 545-550
Anode Effect Initiation during Aluminium Electrolysis in a Two-Compartment Laboratory Cell....Pages 551-556
Enhancing Production Performance by Optimization All Resources at PT Inalum (Persero)....Pages 559-562
New Assisted Gauging System: Another Step to Reduce Variation on Low ACD Operation....Pages 563-565
A Novel Method for Processing Sodium Reduction Skimming Station Residue....Pages 567-570
The ‘Virtual Battery’ — Operating an Aluminium Smelter with Flexible Energy Input....Pages 571-576
Understanding the Basic Requirements of the Anode Set Modifier....Pages 577-581
Reduction Operating Experience on Power Shading at Maaden....Pages 583-586
Effect of Carbon Dust on the Electrical Resistivity of Cryolite Bath....Pages 587-591
Detection of Local Cell Conditions Based on Individual Anode Current Measurements....Pages 595-600
Front Matter....Pages 279-279
Dynamic Response of Cryolitic Bath and Influence on Cell Heat and Mass Balance with Large Scale Potline Power Shifts....Pages 601-605
Simulations on the Bath Chemistry Variables Using Neural Networks....Pages 607-612
Technology Research on Decreasing the Aluminum Surface Waves and Reducing the Cathode Voltage Drop in Aluminum Electrolysis Cell....Pages 613-616
Hall-Heroult Cell Simulator: A Tool for the Operation and Process Control....Pages 617-622
Studies on Anode Pre-Heating Using Individual Anode Signals in Hall-Héroult Reduction Cells....Pages 623-628
Front Matter....Pages 629-629
35 Years of Contributions to Cast Shop Research and Development — Honoring Prof. Dr. Wolfgang Schneider....Pages 633-640
Effect of Liquid Metal Distribution on the Flow Field and Macrosegregation during Direct Chill Casting of Aluminum Alloy 7050....Pages 641-646
Aluminum Billets D.C. Casting: Level-Pour vs. Fall-Pour: A Techno-Historical Approach....Pages 647-650
Hot Tearing in DC Casting Ingot of 7XXX Aluminum Alloys....Pages 651-656
Initial Development of Micro-Shrinkage Crack during Early Stages of Direct Chill Casting of Al-4.5% Cu Alloy....Pages 657-662
Successful Implementation of a New Rolling Slab Casting Technology, AFM, within Hydro....Pages 663-666
Uncertainty Propagation in Numerical Modeling of Direct Chill Casting....Pages 667-672
The Study Conditions Occurrence of Hot Tearing in the Billets Alloy EN AW6060 Produced with the Process of Direct Chill Casting....Pages 673-678
Weibull Analysis for the Repeatibility of Die Castings Made by an Al-Mg-Si-Mn Alloy....Pages 681-685
Thermo-Mechanical Properties of Wrought Aluminium Alloys Produced from Scrap Mixing....Pages 687-692
History and Development of Slag and Dross Pressing....Pages 693-696
Testing PPE for Molten Aluminum Splash Resistance....Pages 697-702
Grain refinement of self-hardening aluminum alloys....Pages 705-710
Modification of Eutectic Si and Refinement of Eutectic Grain in Al-Si-Mg Alloys by CrB2 and Sr Addition....Pages 711-714
Modification of Macrosegregation Patterns in Rolling Slab Ingots by Bulk Grain Migration....Pages 715-719
Front Matter....Pages 629-629
Effect of High Intensity Ultrasonic Treatment on the Microstructure, Corrosion and Mechanical Behaviour of AC7A Aluminum Alloy....Pages 721-724
Mechanism of Zirconium Poisoning Effect on TiB2 Inoculation in Aluminium Alloys....Pages 725-729
Study of Manganese Dissolution in Aluminum Melts....Pages 731-736
Ultrasonic Grain Refining of Continuous Cast Aluminum: Microstructure and Properties....Pages 737-740
Aluminium Casting Furnace Energy Efficiency: Recent Improvements in Rio Tinto Aluminium Casthouses....Pages 743-748
Case Study on Round-Top Fire Rates....Pages 749-751
Increasing Holding Furnace Capacity from 30 to be 40 Tons Molten Aluminium through Modification of Lining Design....Pages 753-756
Furnace Modeling for Efficient Combustion Gas Circulation....Pages 757-761
Furnace Pressure Control Technology for Fuel Efficiency....Pages 763-766
Calculated Aluminum Oxidation Rates during Rotary Furnace Melting through Flue Gas Analysis — Part Two....Pages 767-771
On the Cast House Exergy Management....Pages 773-776
Design of Square Induction Coils for the Electromagnetic Priming of Ceramic Foam Filters....Pages 779-784
Assessment of Active Filters for High Quality Aluminium Cast Products....Pages 785-789
Numerical Simulation of Degassing Phenomena in Direct Chilled Casting Process under External Static Magnetic Field on Flow Pattern in Slab Mold....Pages 791-796
The Problem of Cavities in Open Mold Conveyor Remelt Ingots....Pages 797-801
Theory and Practical Application of Ultrasonic Degassing at J. W. Aluminum....Pages 803-808
TiB2 Particle Detection in Liquid Aluminum via Laser Induced Breakdown Spectroscopy....Pages 809-813
Inline melt treatment for low to medium metal flow rates....Pages 817-820
Effect of Soaking Treatment on the Microstructure and Wear Behavior of the Ultrasonic Melt-Treated B390 Hypereutectic Al-Si Alloy....Pages 821-825
Influence of Oxidation on Contact Angle between Liquid Aluminum and Al2O3....Pages 827-832
Front Matter....Pages 629-629
Optimization of the Ultrasonic Processing in a Melt Flow....Pages 833-836
A Comparison of Cold and Hot PoDFA Procedure for Particle Monitoring in Liquid Aluminium....Pages 837-842
Assessment of Settling Behavior of Particles with Different Shape Factors by LiMCA Data Analysis....Pages 843-848
Modeling of Inclusion Behavior in an Aluminum Induction Furnace....Pages 849-854
Front Matter....Pages 855-855
Characterization of Carbon Anode Materials by Image Analysis....Pages 859-864
Electrochemical Reactivity and Wetting Properties of Anodes Made from Anisotropic and Isotropic Cokes....Pages 865-870
Study of the Wetting of Coke by Different Pitches....Pages 871-876
Quantification of Sodium Present in Dry Aggregates and Anodes....Pages 877-881
Interfacial Boundary between Carbon Anodes and Molten Salt Electrolyte....Pages 883-888
Measurement of the Electric Current Distribution in an Anode....Pages 889-894
Cathode Wear in Electrowinning of Aluminum Investigated by a Laboratory Test Cell....Pages 897-902
Copper Bars for the Hall-Héroult Process....Pages 903-908
Modeling Gravity Wave in 3D with Openfoam in an Aluminum Reduction Cell with Regular and Irregular Cathode Surfaces....Pages 909-914
Porous Carbon Anodes for the Supply of Methane during Electrowinning of Aluminium....Pages 915-920
Creep Behavior and Change of Porous Structure of Graphite Cathode Material in NaF-AlF3-Al2O3 Melt under External Pressure....Pages 921-925
Uneven Cathode Wear in Aluminium Reduction Cells....Pages 927-932
Effect of Cathode Collector Copper Inserts on the Hall-Héroult Cell MHD Stability....Pages 933-938
Anode Baking Furnace Fluewall Design Evolution: A Return of Experience of Latest Baffleless Technology Implementation....Pages 941-945
Effect of Heating Rate During Baking on the Properties of Carbon Anodes Used in Aluminum Industry....Pages 947-951
Empirical Modeling of the Baking Furnace to Predict Baked Anode Properties....Pages 953-958
Front Matter....Pages 855-855
In Situ Investigation of the Behavior of Anode Assemblies....Pages 959-964
Low Resistance Anode Assembly Using Steel Stubhole Conductors Across the Cast Iron to Carbon Interface....Pages 965-969
Upgrade of the Firing and Control System at Egyptalum for Dual Fuel Firing....Pages 971-976
Mirea: an On-Line Quality Control Equipment Integration in an Operational Context....Pages 979-984
Journey Towards World-Class Operational Effectiveness at DUBAL (EGA Jebel Ali) Paste Plant....Pages 985-990
The Startup and the Operation Performance of the Twin Green Anode Plant at Maaden Aluminium Smelter in Saudi Arabia....Pages 991-996
Simulation-Based Decision Support in Cathode Re-Lining Facility Design....Pages 997-1002
Front Matter....Pages 1003-1003
Twin-Roll Casting of Carbon Fiber-Reinforced and Glass Fiber-Reinforced Aluminum Strips....Pages 1007-1012
Productivity Improvements in Industrial Twin-Roll Casting by Heat Loss Analysis Along the Process Chain....Pages 1013-1016
Development and Numerical Simulation of a Compound Belt Casting Process....Pages 1017-1021
Crystallographic Texture Development of As-Cast 3105 Alloy Produced by St/Cu Shell Pair....Pages 1025-1030
Annealing Curve of 3105 Alloy Produced by Twin Roll and Belt Casting Method....Pages 1031-1035
Effect of As-Cast Strip Thickness and Reduction Prior to Soft Annealing on the Formability of Twin-Roll Cast 5754 Sheets....Pages 1037-1041
Back Matter....Pages 1043-1053