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Meeting Liquid Metal Processing & Casting Conference (LMPC 2019)
Symposium Liquid Metal Processing & Casting
Presentation Title Numerical Investigation of the Vacuum Arc Remelting (VAR) Process
Author(s) Ebrahim Karimi Sibaki, Abdellah Kharicha, Menghuai Wu, Andreas Ludwig, J. Bohacek, Harald Holzgruber, Bertram Ofner, Alexander Scheriau, Michael Kubin
On-Site Speaker (Planned) Ebrahim Karimi Sibaki
Abstract Scope Nowadays, the Vacuum Arc Remelting (VAR) process is effectively utilized to manufacture Titanium-based alloys. A comprehensive CFD model is proposed to study the interaction between various transport phenomena (flow, heat, etc.) in the VAR. All elements of the process including the electrode, vacuum, Titanium-based ingot, and mold are taken into account. The electromagnetic field is calculated in the entire process. The flow filed in the melt pool is computed. Furthermore, the pool profile of the solidified ingot is calculated. The model enables us to compute the radiation heat transfer in the vacuum region where the amount of side-arcing is prescribed. The impact of side-arcing on the magnetohydrodynamics behaviour of the melt pool and consequently the pool profile of the ingot is analysed. Eventually, the model is validated against an experiment.
Proceedings Inclusion? Definite: At-meeting proceedings


3D Numerical Simulation of the VAR Consumable Electrode Melting Process
A New Approach to the Requirements of Casting Factors in Investment Cast Aluminium Alloys
A Novel Method for Measuring the Content of Aluminum Alloy Melt Inclusions
Alloy Grain Refinement by Means of Electromagnetic Vibrations
An Experimental Setup to Study the Influence of an External Magnetic Field on Arc Behavior
Ancillary Processes in Casting Manufacturing Introducing Risks in Production
Calculating Steel Making and Steel Refining Processes using Thermo-Calc’s New Process Metallurgy Module and the CALPHAD Database TCOX9
Clean Metal – A Casting Perspective
Current Density and Electrode Tip Shape in an Electroslag Remeleting Process with Two-series Connected Electrodes
Defect Curing using Plasma Arc for Continuously Cast Steel Slabs
Dissolution Rate of Carbon in Liquid Metal
DNS and Engineering Modeling of the Electoslag Remelting Process
Effect of Oxygen Atmosphere in High Pressure Die Casting Melt Holder Crucible on Metal Quality and Cast Part of AlSi9Cu3
Effect of Rare Earth Magnesium Alloy on Microstructure and Mechanical Properties of H13 Steel
Effect of the Al2O3-content in the Slag on the Chemical Reactions and Non-metallic Inclusions during Electro-slag Remelting
Electrolytic Production of Silicon using Liquid Zn Alloy Cathode in Molten CaCl2
Electromagnetic Filter Priming (EMFP) of Ceramic Foam Filters (CFF) for Liquid Aluminium Filtration
Experimental Study on Alloying Additions in Electro Slag Refining
Feedback-based Control over the Spatio-temporal Distribution of Arcs during Vacuum Arc Remelting via Externally Applied Magnetic Fields
Formation of Central Semi-macro Segregation and its Minimization by Soft Reduction during the Continuous Casting of Heavy and Wide Slab
Identification of Relevant Parameters for a Gap and Pressure Dependent Heat Transfer Model for Different Cooling Conditions in Gravity Die Casting
Influence of Gap Formation and Heat Shrinkage Induced Contact Pressure on the Development of Heat Transfer in Gravity Die Casting Processes
Investigations on Collective Motion of Cathode Spots in the VAR Process
Investment Casting of High Reactive and High Melting Metals using Calcium Zirconate Crucibles
Liquid Metal Flow Studied by Positron Emission Particle Tracking
Mass-Spectrometric Study of Thermodynamic Properties of CaO–TiO2 Melts
Measurement of the Spatio-Temporal Distribution of Arcs during Vacuum Arc Remelting and their Implications on VAR Solidification Defects
Modeling Electrochemical Transport of Ions in the ESR Process
Modelling the Cold Crucible Pouring Dynamics
Numerical Investigation of the Vacuum Arc Remelting (VAR) Process
Numerical Modelling and Optimization of the Electrode Induction Melting for Inert Gas Atomization (EIGA)
Numerical Prediction of the Interfacial Heat Transfer Coefficient for Permanent Mold Casting of Mg-Al Alloys
P10: Study on Centrifugally Cast Functionally Graded Al-Mg₂Si In-Situ Composites
P2: Effect of Slag Containing Rare Earth Oxide on Steel Cleanliness and Tensile Properties during Electroslag Remelting of AF-3 Steel
P3: Effect of Vacuum on Oxygen Control during Electroslag Remelting of H13 Die Steel
P5: Microstructures and Mechanical Properties of AlMg5Si2Mn Experimental Alloy under Different Casting Processes
P6: Numerical Investigation on the Ingot Solidification with Different Solidification Paths and Permeability Models in Electroslag Remelting Process
P7: Optimum Design of Refining Slag for 38CrMoAl High Aluminum Steel
P8: Rapid Solidification and Microstructure Formation in Designed Ni-based Immiscible Alloys
P9: Research on the Bonding Interface of Bimetallic Composite Roll Produced by a New Electroslag Cladding Method
Plant Design Aspects and Attainable Ingot Quality of Most Modern Super Alloy Production Plants
Reduction of Explosion Frequency and Severity during BOF Charging and Blowing
Results of the New Generation ESR (Electro Slag Remelting) Unit with Rotating Electrode, Designed by SMS Mevac GmbH
Slag-metal Interactions in the FeMn Tapping Process: Interfacial Properties and Wetting
SOLAR Calculation of the Capacity of the Security System to Ensure the Extraction of Heat during Vacuum Arc Remelting (VAR)
Surface Tension, Viscosity and Specific Heat Capacity of Ni-based Superalloys MC2, LEK94 and CMSX-10 in the Liquid Phase Measured in the Electromagnetic Levitator (EML-ISS) on Board the International Space Station
The Realization of a Dynamic Regulation Process for Nodularization and Inoculation of Ductile Iron
Thermo-hydrodynamic Modeling of the Plasma Arc Melting Cold Hearth Refining Process (PAMCHR)
Uncertainty in the Modeling of Nitinol Solidification in VAR
VT3-1 Titanium Alloy Ingot Solidification during VAR
Wettability of Molten Fe-Si-B Alloy on Graphite, Al2o3, and h-BN Substrates

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