International Symposium on Liquid Metal Processing and Casting 2009

Transcription

1 International Symposium on Liquid Metal Processing and Casting 2009 (LMPC 2009) Santa Fe, New Mexico, USA September 2009 ISBN:

2 Printed from e-media with permission by: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY Some format issues inherent in the e-media version may also appear in this print version. Copyright (2009) by the Minerals, Metals & Materials Society (TMS) All rights reserved. Printed by Curran Associates, Inc. (2009) For permission requests, please contact the Minerals, Metals & Materials Society (TMS) at the address below. The Minerals, Metals & Materials Society (TMS) 184 Thorn Hill Road Warrendale, Pennsylvania Phone: (U.S. and Canada only) (all other countries) Fax: Additional copies of this publication are available from: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY USA Phone: Fax: Web:

3 TABLE OF CONTENTS International Symposium on Liquid Metal Processing and Casting Dedication Foreword Committees International Symposium on Liquid Metal Processing and Casting VAR Process Numerical Simulation of the Thermal Behaviour of the Primary Material in Remelting Processes: Applications to VAR and EBM and Experimental Validation...3 J. Bellot, P. Zabeti, H. Mir, J. Jourdan, P. Chapelle, and A. Jardy Calibration of a Simulation Model for VAR with Respect to the Influence of Helium Cooling...13 J. Terhaar, M. Maurischat, N. Blaes, D. Bokelmann, and K. Kelkar A Unified 3D Model of the VAR Process...21 V. Bojarevics, K. Pericleous, G. Djambazov, and M. Ward Behaviour of Hard-α Inclusions in the Liquid Pool of a VAR Titanium Ingot...29 G. Ghazal, A. Jardy, P. Chapelle, and Y. Millet Multiscale Modeling of the Onset of Freckle Formation during VAR...39 L. Yuan, G. Djambazov, K. Pericleous, and P. Lee An Analysis of the Use of Magnetic Source Tomography to Measure the Spatial Distribution of Electric Current during VAR...47 B. Nair, and R. Ward New Methods of VAR Process Control: Technical Challenges...57 R. Williamson A New Optical Emission Monitor for VAR...65 R. Aikin, and R. Williamson Characterizing Arc Motion and Distribution during VAR...75 R. Woodside, and P. King On the Origin of the White Spot Defect in Vacuum Arc Remelted Ingots...85 F. Shved

4 Solidification Comparison between Temperature- and Enthalpy-Based Formulations for the Energy Transport Equation in Solidifying Multi-Component Systems...97 V. DeFelice, A. Jardy, and H. Combeau Structure Refinement by a Liquid Metal Cooling Directional Solidification Process for Single Crystal Nickel-Base Superalloys C. Brundidge, T. Pollock, and D. VanDrasek Heat Extraction and Dendritic Growth in the Liquid Metal Cooling (LMC) Directional Solidification Process J. Miller, and T. Pollock High Thermal Gradient Directional Solidification with Liquid Metal Cooling and Its Application in the Processing of Nickel-Based Superalloys L. Liu Steel Processing Manganese and Phosphorous Distribution Equilibrium between Converter Slags Saturated with 2CaO SiO2 and MgO and Low Manganese Steel Z. Chen Mathematical Modeling of Two Phase Flow in a RH Degasser R. Tavares, C. Carneiro, and R. Reis Simulation of Non-Metallic Inclusions Formation during Liquid Steel Reoxidizing A. Alexeenko, and E. Baybekova Modeling Solidification and Slag Infiltration during Continuous Casting of Slabs P. Lopez, P. Lee, and K. Mills Development of Flow Modifiers for the Mold to Reduce the Intermixing Length in Slab Casting R. Tavares, R. Elias, F. Torres, and F. Policarpo Kinetic Model of Hot Metal Dephosphorization in a Torpedo Car Z. Chen Physic-Chemical Model of Degassing and Simulation of Metal Foam Formation at Vacuum Treatment L. Kamkina, G. Stovpchenko, Y. Yakovlev, and O. Velichko The Study of the Macrosegregation in Heavy Steel Ingots B. Sang, D. Liu, X. Kang, and D. Li

5 ESR Process Bounds on Model Parameters for Computational Analysis of the ESR Process A. Patel, and M. Gierula Couple Modeling of Electromagnetic, Fluid Flow and Heat Transfer in Slag Bath during Current-Conductive Mould ESR process F. Liu, Z. Jiang, X. Zang, and X. Geng Estimation of Electroslag Remelting Process with an Unscented Kalman Filter J. Beaman, and S. Ahn Numerical and Experimental Investigations on the ESR Process of the Hot Work Tool Steel W A. Kharicha, W. Schutzenhofer, A. Ludwig, and R. Tanzer Thermophysical Properties of ESR Electrofluxes (Part 1: Density) S. Akbari, J. Reitz, and B. Friedrich On Nitrogen Pick-up during Pressure-ESR of Austenitic Steels A. Patel, J. Reitz, J. Magee, R. Smith, G. Maurer, and B. Friedrich Electroslag Remelting of Steels with Inoculation M. Chatterjee, and P. Sarkar New Plant Concepts for the Production of Large Size ESR Ingots H. Holzgruber, A. Scheriau, and B. Rinnerhofer Modeling of the ESR Ingot Enlargement L. Medovar PESR Processing of TiAl-Electrodes Made by Aluminothermic Reduction B. Friedrich, J. Reitz, T. Mionskowski, and J. Stoephasius Quick Determination of Total Fluoride in Electroslag Refining Fluxes K. Wroblewski, J. Fields, J. Fraley, R. Werner, and S. Rudoler Investigation on Solidification Quality of Industrial-Scale ESR Ingot Y. Dong, Z. Jiang, and Z. Li Process Optimization and Novel Techniques Levitated Liquid Droplets in AC and DC Magnetic Field V. Bojarevics, S. Easter, and K. Pericleous Freckling Tendencies of Ni-Base Superalloys K. Kajikawa, T. Sato, and H. Yamada

6 Modeling of Macro-Segregation in a Permanent Mold Casting L. Nastac, A. Patel, and G. Maurer Thermoelectromagnetic Convection - An Alternative Stirring Technique in Metallurgy A. Cramer, X. Zhang, and G. Gerbeth The Use of Smooth Particle Hydrodynamics to Model Dross Formation during Crucible Tipping of Aluminum Melts J. Taylor, M. Prakash, G. Pereira, and P. Rohan New Measurement Protocol for Modulated Calorimetry Using Electromagnetic Levitation J. Etay, and P. Schetelat Physical and Mathematical Model of Aluminium Refining Process in the URC Reactor M. Saternus, and J. Botor Precious Metal Recovery from the Used Auto Catalytic Converters A. Fornalczyk, and M. Saternus New Approaches for Recycling of Aluminum Scraps J. Cui, and H. Roven The Mechanical Properties and Corrosion Resistance of Cast and Wrought Hastelloy C are Significantly Enhanced When the Unwanted Complex Carbides are Removed through a Dissolution Process G. Calboreanu Author Index Subject Index