PRELIMINARY PROGRAM

MODELLING OF
CASTING, WELDING AND
ADVANCED SOLIDIFICATION PROCESSES VIII

June 7 - 12, 1998
Catamaran Hotel
San Diego, California

Conference Chair:
Brian Thomas
University of Illinois

Conference Co-Chairs:
Christoph Beckermann
University of Iowa

Itsuo Ohnaka
Osaka University

Cooperative Societies
Japan Iron and Steel Institute
The Minerals, Metals, and Materials Society

Engineering Foundation Conferences
345 East 47th Street
New York, NY 10017
T: 1-212-705-7836 -- F: 1-212-705-7441
E: engfnd@aol.com -- www.engfnd.org

International Organizing Committee
Dr. Michel Bellet
Ecole des Mines de Paris - CEMEF - France
Dr. William Boettinger
NIST - USA
Professor Jonathan A. Dantzig
University of Illinois - USA
Professor James W. Evans
University of California at Berkeley - USA
Professor John Goldak
Carleton University - Canada
Professor L. Katgerman,
Delft University of Technology - Netherlands
Dr. Andreas Ludwig
Giesserei Institut - Germany
Dr. Steven P. Marsh
US Naval Research Lab - USA
Professor Koulis Pericleous
University of Greenwich - England
Professor Michel Rappaz
EPFL - Switzerland
Dr. Srinath Viswanathan,
Oak Ridge National Laboratory - USA
Professor Vaughan R. Voller
University of Minnesota - USA
Dr. Kuang-Oscar Yu
Concurrent Technologies Corporation - USA.

Poster Presentations

SUNDAY, JUNE 7, 1998

3:00 pm - 6:00 pm Registration

6:00 pm - 8:00 pm Dinner

8:00 pm OPENING SESSION
Chair: B.G. Thomas

Welcome from the Engineering Foundation
F. Landis, EF Conferences Committee

8:15 pm - 8:50 pm Keynote
Solidification Modeling, Past and Present
M.C. Flemings
Massachusetts Institute of Technology, USA

8:50 pm - 9:30 pm Dedication
A Tribute to J. Keith Brimacombe
I.V. Samarasekera

9:30 pm - 10:30 pm Opening Reception

MONDAY, JUNE 8, 1998

7:00 am - 8:15 am Breakfast

8:20 am - 8:30 am Opening Remarks:
B.G. Thomas, Conference Chair

8:30 am MOLD FILLING
Chair: L. Katgerman
Delft University of Technology, The Netherlands

8:35 am - 9:10 am Keynote
Numerical Recipes for Mold Filling Simulation
D. Kothe, D. Juric, K. Lam, and B. Lally
Los Alamos National Laboratory, USA

9:10 am - 9:35 am Application of a Parallel Algorithm to 3-D Mold-Filling and Solidification Processes
M. Audet, J-F. Hetu, and F. Ilinca
National Research Council, Canada

9:35 am -10:00am Mold Filling Simulation with Non-Structured Meshing
I. Ohnaka, R. Kanatani, and J.D. Zhu
Osaka University, Japan

10:00 am -10:30 am Coffee Break

10:30 am - 10:55 am Modeling of Cold Shut during Mold Filling
Z.A. Xu and F. Mampaey
WTCM Foundry Center, Belgium

10:55 am - 11:20 am Lost Foam Casting Simulation with Defect Prediction
C.W. Hirt and M.R. Barkhudarov
Flow Science Corporation, USA

11:20 am - 11:45 am Experimental and Numerical Investigation of Mold Filling
R.M. McDavid and J.A. Dantzig
University of Illinois, USA

11:45 am - 12:10 Investigation of Running Systems for Grey Cast Iron Camshafts
M.R. Jolly, S.W. Wen, A. Lapish, N.D. Butler, M. Wickens, and
J. Campbell
University of Birmingham, United Kingdom

12:10 pm - 12:15 pm Announcements

12:15 pm - 1:30 pm Lunch

1:30 pm - 4:00 pm Ad hoc sessions/free time

4:00 pm - 5:30 pm POSTER SESSION
Mold Filling
Microsegregation
Heat and Flow Modeling of Laser, Melting, and Welding Processes
A full listing of poster titles and presenters is at the end of this program.
Poster presenters for the above topics will be by their posters and prepared to discuss them at both Poster Sessions today.
The Posters for Tuesday's Poster Sessions will also be on display, but those authors are not required to stand by their posters.

5:30 pm - 7:00 pm Dinner

7:00 pm MICROSEGREGATION
Chair: V. R. Voller
University of Minnesota, USA

7:00 pm - 7:35 pm Keynote
Analysis of Solidification Path and Microsegregation
W.J. Boettinger, U.R. Kattner, and D.K. Banarjee
NIST, Gaithersburg, MD, USA

7:35 pm - 8:00 pm An Overview on Premises for the Technical Applicability of Solidification Mircomodeling
M. Rettenmayr and H.E. Exner
Technical University of Darmstadt, Germany

8:00 pm - 8:25 pm A 2D Combined Model of Dendrite Evolution/Solute Redistribution/Post- Solidification Solutioning in Equiaxed Grains
S.R.G. Brown and J.A. Spittle
University of Wales-Swansea, United Kingdom

8:25 pm - 8:45 pm Coffee Break

8:45 pm - 9:10 pm Macroscopic Modeling of the Microstructural Evolution in Castings Using Thermodynamic Formulated Phase Diagrams
K. Greven, M. Fackeldey, A. Ludwig, T. Kraft, M. Rettenmayr, and P.R. Sahm
Giesserei Inst. RWTH Aachen, Germany

9:10 pm - 9:35 pm Alstruc-Simulation of the Effects of Minor Alloying Elements on the Cooling Curves and the Microstructure of A1Si-Foundry Alloys
A.L. Dons, S. Brusethaug, and J. Voje
Sintef Metallurgy, Norway

9:35 pm - 10:00 pm An Approximate Method for Coupling Microscopic and Macroscopic Simulations Using Calculated Phase Diagrams
T. Kraft, H. Liang, and Y.A. Chang
University of Wisconin, USA

10:00 pm - 11:00 pm Social Hour/Poster Session (as above at 4 pm)

TUESDAY, JUNE 9, 1998

7:00 am - 8:30 am Breakfast

8:30 am MACROSEGREGATION
Chair: I. Ohnaka
Osaka University, Japan

8:35 am - 9:10 am Keynote
Recent Progress in Understanding and Prediction of Macro and
Mesosegregations
H. Combeau, B. Appolaire, and G. Lesoult
Ecole des Mines de Nancy, France

9:10 am - 9:35 am Macrosegregation Formation During Solidification of Complex Steel Castings:
3-D Numerical Simulation and Experimental Comparison
M.C. Schneider, C. Beckermann, D.M. Lipinski, and W. Schaefer
MAGMA Giessereitechnologie, Germany

9:35 am - 10:00 am Semi-Analytical Models of Segregation Processes
V. R. Voller
University of Minnesota, USA

10:00 am - 10:30 am Coffee Break

10:30 am - 10:55 am Measurements and Modelling of Surface Macrosegregation in
DC Casting
H.J. Thevik, A. Mo, A. Hakonsen, S. Benum, E.K. Jensen, and B-R.
SINTEF Materials Technology, Norway

10:55 am - 11:20 am Henriksen Analysis of Heat Transfer and Macrosegregation in
Horizontal Strip Casting
A.V. Kuznetsov
Technical University Vienna, Austria

11:20 am - 11:45 am Macroscopic Modeling of Marangoni Flow and Solute Redistribution During Laser Welding of Steel
G. Ehlen, A. Schweizer, A. Ludwig, and P.R. Sahm
Foundry Institute, Germany

11:45 am - 12:10 pm Numerical Modeling of Macrosegregation During Ingot Casting
in the Plasma Arc Melting Process
S. Sundarraj, L. Nastac, J. Pang, and K.O. Yu
Concurrent Technologies Corp., USA

12:10 pm - 12:15 pm Announcements

12:15 pm - 1:45 pm Lunch

2:00 pm CAST IRON STRUCTURE
Chair: O. Yu
Concurrent Technologies Corp., USA

2:00 pm - 2:35 pm Keynote
Modelling of Microstructure Formation in Cast Iron
I.L. Svensson and M. Wessén
Jonkopong University, Sweden

2:35 pm - 3:00 pm Prediction of Room Temperature Microstructure and Mechanical Properties in Iron Castings
A. Catalina, X. Guo, D.M. Stefanescu, L. Chuzhoy, M.A. Pershing,
and G.L. Biltgen
University of Alabama, USA

3:00 pm - 3:20 pm Coffee Break

3:20 pm - 3:45 pm Predicting Gray Iron Microstructure and Mechanical Properties Using Solidification Simulation
B. Leube, L. Arnberg, and R. Mai
Norwegian University of Science and Technology, Norway

3:45 pm - 4:10 pm Numerical Simulation of Microstructural Evolution of Nodular Cast Iron-For the Case of Automobile Crankshaft by the Croning Process
S.-M. Yoo, A. Kleine, A. Ludwig, and P.R. Sahm
Giesserei Inst. RWTH Aachen, Germany

4:10 pm - 4:30 pm Physical Modelling of the Solidification of Spheroidal Graphite Cast Irons: Revisitation of the Coupled Zone Concept
G. Lesoult, M. Castro Roman, and J. Lacaze
ENSCT, France

4:30 pm - 6:00 pm POSTER SESSION
Macrosegregation
Cast Iron Structure
Heat and Flow Modeling of Continuous Casting Processes
A full listing of poster titles and presenters is at the end of this program.
Poster presenters for the above topics will be by their posters and prepared to discuss them at both Poster Sessions today.
The Posters for Monday's Poster Sessions will also be on display, but those authors are not required to stand by their posters.

6:00 pm HEAT AND FLOW MODELING OF CONTINUOUS CASTING PROCESSES
Chair: J.W. Evans
University of Calfornia, USA

6:00 pm - 6:25 pm The Modelling of Transient Heat and Fluid Flows in the Start-Up Phase of the DC Casting Process
B.R. Henriksen, E.K. Jensen, and D. Mortensen
Elkem ASA Research, Norway

6:25 pm - 6:50 pm Experimental and Numerical Determination of Crater End in Continuous Casting of Steel
H. Kytönen, M. Tolvanen, S. Louhenkilpl, and L. Holappa
Helsinkii University of Technology, Finland

6:50 pm - 7:30 pm The Formation of Oscillation Marks in Continuous Casting of Steel
H. Steinrück, C. Rudischer, and W. Schneider
Technical University of Vienna, Austria

7:30 pm - 8:45 pm Dinner
Cruise on William D. Evans

9:00 pm - 10:00 pm Social Hour / Posters (as above at 4:30 pm)

A full listing of poster titles and presenters is at the end of this program.

Poster presenters for the above topics will be by their posters and prepared to discuss them at both Poster Sessions today.

The Posters for Monday's Poster Sessions will also be on display, but those authors are not required to stand by their posters.

WEDNESDAY, JUNE 10, 1998

7:00 am - 8:15 am Breakfast

8:30 am STRESS AND DISTORTION
Chair: K. Pericleous
University of Greenwich, United Kingdom

8:30 am - 8:55 am A Thermo-Elasto-Visco-Plastic Analysis for Determining Air Gap and Interfacial Heat Transfer Coupled with the Lewis-Ransing Correlation for Optimal Feeding Design
R.S. Ransing and R.W. Lewis
University of Wales-Swansea, United Kingdom

8:55 am - 9:20 am A Numerical Mechanical Coupling Algorithm for Deformable Bodies:
Application to Part/Mold Interaction in Casting Process
O. Jaouen and M. Bellet
CEMEF, France

9:20 am - 9:45 am Coupled Thermo-Mechanical Simulation of Industrial Solidification Processes
M. Cervera, C. Agelet de Saracibar, and M. Chiumentl
Technical University of Catalonia, Spain

9:45 am - 10:10 am A Three Dimensional Finite Volume Approach to the Thermo-Mechanical Modelling of the Shape Casting of Metals
G.A. Taylor, C. Bailey, and M. Cross
University of Greenwich, United Kingdom

10:10 am - 10:40 am Coffee Break

10:40 am 11:05 am Stress/Strain Modeling of Casting Processes in the Framework of the Control Volume Method
J. Hattel, J. Thorborg, and S. Anderson
Technical University of Denmark

11:05 am - 11:30 am Study on Residual Stress of Cylinder Block Casting by Using an Integrated FDM/FEM System
Y. Chen, J.W. Kang, and B.C. Liu
Tsinghua University, China

11:30 am - 12:00 noon Analysis and Validation of Multi-Pass Girth Welds in Pipes
A.R. Ortega, J.J. Dike, J.F. Lathrop, C.H. Cadden, D.R. Folk, and J.E. Robles
Sandia National Laboratories, USA

12:00 noon - 1:30 pm Lunch

1:30 pm - 4:00 pm Ad hoc sessions/free time

4:00 pm - 5:30 pm POSTER SESSION
Stress Modeling Applications
Grain Structure Modeling
Direct Microstructure Simulation
A full listing of poster titles and presenters is at the end of this program.
Poster presenters for the above topics will be by their posters and prepared to discuss them at both Poster Sessions today.
The Posters for Thursday's Poster Sessions will also be on display, but those authors are not required to stand by their posters.

5:30 pm - 7:00 pm Dinner

7:00 pm GRAIN STRUCTURE MODELING
Chair: S. Marsh
Naval Research Laboratories, USA

7:00 pm - 7:35 pm Keynote
Modeling of Dendritic Grain Structures
Ch.-A Gandin, T. Jalanti, and M. Rappaz
EPFL, Switzerland

7:35 pm - 8:00 pm Numerical Modeling of the Columnar to Equiaxed Transition in Continuous Casting of Steel
M. M'Handi, M. Bobadilla, H. Combeau, and G. Lesoult
Ecole des Mines de Nancy, France

8:00 pm - 8:25 pm Modeling of Deflected Columnar Grains Solidified in Flowing Melt
S.Y. Lee, S.M. Lee, and C.P. Hong
Yonsei University, Korea

8:25 pm - 8:40 am Coffee Break

8:40 pm - 9:05 pm Predicting the Columnar-to-Equiaxed Grain Transition in Gas Tungsten Arc Welds in Aluminum-Copper Alloys
J. Clarke, D.C. Weckman, and H.W. Kerr
University of Waterloo, Canada

9:05 pm - 9:30 pm Grain Structure of the Laser Beam Welds: Undergoing Planar Solidification Mode
V.V. Ploshikhin and H.W. Bergmann
Univesity of Erlangen-Neuremberg, Germany

9:30 pm DIRECT MICROSTRUCTURE SIMULATION
Chair: J. A. Dantzig
University of Illinois, USA

9:30 pm - 10:00 pm Keynote
Direct Numerical Simulation of Solidification Structure Using the Phase Field Method
I. Steinbach and G.J. Schmitz
ACCESS e.V., Germany

10:00 pm - 11:00 pm Social Hour / Posters (same as at 4 pm)
A full listing of poster titles and presenters is at the end of this program.
Poster presenters for the above topics will be by their posters and prepared to discuss them at both Poster Sessions today.
The Posters for Thursday's Poster Sessions will also be on display, but those authors are not required to stand by their posters.

THURSDAY, JUNE 11, 1998

7:00 am - 8:30 am Breakfast

8:30 am MICROPOROSITY
Chair S. Viswanathan
Oak Ridge National Laboratory

8:30 am - 9:05 am Keynote
Phenomena Related to the Formation of Microporosity in Castings
D.R. Poirier
University of Arizona

9:05 am - 9:30 am Prediction of Microporosity in Aluminum Alloy Castings
S. Viswanathan, A.J. Duncan, A.S. Sabau, and Q. Han
Oak Ridge National Laboratory

9:30 am - 9:55 am Finite Volume Modelling of Shrinkage Porosity Formation in Metal Casting
S.M. Bounds, G.J. Moran, K.A. Pericleous, and M. Cross
University of Greenwich, United Kingdom

9:55 am - 10:20 am Modeling of Microporosity Evolution During Solidification Processes
J. Huang and J.G. Conley
Northwestern University, USA

10:20 am - 10:50 am Coffee Break

10:50 am DEFORMATION AND HOT TEARING
Chair M. Bellet
Ecoles des Mines de Paris

11:15 am - 11:40 am Isothermal Constitutive Behaviour of the Solid-Liquid Mushy Zone, Theoretical
Treatment and Experimental Identification
C.L. Martin, D. Favier, M. Suéry, and M. Bobadilla
GMP2 Laboratory, France

11:40 am - 12:10 pm Study of Hot Tearing in Aluminum Alloys Using the Ring Mold Test
J.-M. Drezet and M. Rappaz
Ecole Polytech. Federale, Switzerland

12:10 pm - 12:15 pm Announcements

12:10 pm - 2:00 pm Lunch

2:00 pm NOVEL APPLICATIONS AND OPTIMIZATION
Chair: A. Ludwig
Giesserei Inst. RWTH Aachen, Germany

2:00 pm - 2:25 pm Automatic Computer Optimization of Casting Design and Casting Processes Using Evolutionary Strategies
J. Wolf, G. Ehlen, and P.R. Sahm
Foundry Institute, Germany

THURSDAY, JUNE 11, 1998

2:25 pm - 2:50 pm Advanced Inverse Techniques for the Design of Directional Solidification Processes
N. Zabaras, G.Z. Yang, and R. Sampath
Cornell University, USA

2:50 pm - 3:20 pm An Expert System for the Design of Cooling Channels in Permanent Molds
T. Davis, M. Matthews, and M. Makhlouf
Metals Processing Institute, USA

3:20 pm - 3:50 pm Coffee Break

3:50 pm - 4:15 pm Reducing the Cycle Time in Die Casting Using Solidification Modelling and Optimisation Techniques
D.P.K. Singh, N. Palle, G.D. Mallinson, S.M. Panton, and S. Mahadeva
University of Auckland, New Zealand

4:15 pm - 4:40 pm The Spectral Modelling of Contactless Induction Melting for Reactive Metals
V. Bojarevics, K.A. Pericleous, and M. Cross
University of Greenwich, United Kingdom

4:40 pm - 5:00 pm Modeling of Centrifugally-Cast TiC/Bronze Metal Matrix Composites
H. Hao, X. Huang, L. Nastac, S. Sundarraj, and A. Simkovich
Concurrent Technologies Corp., USA

5:00 pm - 6:30 pm POSTER SESSION
Semi-Solid Casting
Hot Tearing
Casting Design Tools
Heat-Transfer Modeling Applications
A full listing of poster titles and presenters is at the end of this program.
Poster presenters for the above topics will be by their posters and prepared to discuss them at both Poster Sessions today.
The Posters for Wednesday's Poster Sessions will also be on display, but those authors are not required to stand by their posters.

7:00 pm - 9:00 pm Conference Dinner

9:00 pm - 10:00 pm Social Hour / Posters (as above)

FRIDAY, JUNE 12, 1998

7:00 am - 8:30 am Breakfast

BENCHMARK EXPERIMENTS
Co-Chairs: B.G. Thomas
University of Illinois, USA
and
C. Beckermann
University of Iowa, USA

8:30 am - 8:40 am Overview
B. G. Thomas

8:40 am - 9:40 am A five-minute presentation will be given on each of the benchmark
experiment papers

9:40 am - 11:10 am POSTER SESSION (coffee will be served)
Experimental Benchmarks
These posters will be on display Friday only and poster presenters will be by their posters and prepared to discuss them.
A full listing of poster titles and presenters is at the end of this program.

11:10 am - 12:00 noon Panel Discussion on Benchmarks
Chairs: B.G. Thomas and C. Beckermann

12:00 noon - 1:30 pm Lunch and Adjournment

2:00 pm Planning Session for MCWASP IX

Return to Top

POSTER PRESENTATIONS

Monday, June 8, 1998
Mold Filling
Microsegregation
Heat and Flow Modeling of Laser, Melting, and Welding Processes

Manned: Monday, June 9, 1998 4:00 - 5:30 pm and 10:00 - 11:00 pm
Unmanned: Tuesday, June 8, 1998 4:30 - 6:00 pm and 9:00 - 10:00 pm

Mold Filling
Chair: L. Katgerman
Delft University of Technology

Prediction of Heat Loss in Filling Channel
M. Wu and P.R. Sahm
Foundry Institute Aachen, Germany

Modeling of Mold Filling and Solidification Sequences in the Permanent Mold Casting Process with an Automated Water Cooling System
Y.C. Lee, S.M. Lee, Q.M. Chang, J.K. Choi, and C.P. Hong
Korea Institute of Ind. Technology, Korea

A 3D Finite Element Model Applied to Complex Thin Wall Cavity Filling in Die Casting
D.M. Gao
National Research Council, Canada

Prediction of Cold Shuts Using an Unstructured Mesh Finite Volume Code
G.J. Moran, S.M. Bounds, K.A. Pericleous, and M. Cross
University of Greenwich, United Kingdom

A Fast and Practical Algorithm for Three Dimensional Computer Simulation of Mold Filling
J.D. Zhu, I. Ohnaka, and Y. Ageta
AMRA Technologies

Improvement of Computational Efficiency of Numerical Simulation of Mold Filling of Casting
W. Qiu, L.R. Jia, S.M. Xiong, and B.C. Liu
Tsinghua University, China

Numerical Simulation of Mold Filling Based on van Leer Approximation
B-J. Yang, L-N. Cai, and J-Y. Su
Xi'an Jiaotong University, China

The Gas-Liquid Interface Tracking Using Level Set Approach for Die Casting Application
H. Wei and Y.S. Chen
Engineering Sciences, Inc., USA

Horizontal Mould Filling of a Thin Wall Aluminium Casting
R. Van Tol, L. Katgerman, and H.E.A. Van den Akker
Delft University of Technology

A 3-D Mathematical Model for the Flow Pattern of Molten Metal in the Shot Sleeve of a Cold Chamber Die Casting Machine and Its Experimental Verification
J-H. Kuo, S-M Pan, and W-S. Hwang
National Cheng Kung University, R.O.C.

Microsegregation
Chair: V.R. Voller
University of Minnesota, USA

Modelling of Solidified Structure of Ternary Aluminium Alloys
A. Roósz, J. Szoke, and I. Kuti
University of Miskolc, Hungary

A Mathematical Model for Microsegregation in Rapidly Solidified Alloys
G.-X. Wang, V. Prasad, S. Sampath, and H. Herman
State University of New York at Sony Brook, USA

Calculation of Microsegregation for the Directionally Solidified Superalloy
CMSX 4 Using a Pseudo 2-Dimensional Model
U. Grafe, D. Ma, A. Engström, and S.G. Fries
Access e.V., Germany

Numerical Approach of the Segregation Occurring in Alloys Solidification
O. Bertrand and E. Arquis
University of Bordeaux, France

Heat and Flow Modeling of Laser, Melting, and Welding Processes
Chair: J.A. Goldak
Carleton University, Canada

A Vorticity-Based Model for Turbulence in Weld Pools
K. Hong, A.B. Strong, and D.C. Weckman
University of Waterloo, Canada

Finite Element Simulation of Solidification Process of Metallic Powders in Laser Rapid Prototyping
M. Shiomi, A. Yoshidome, K. Osakada, and F. Abe
Osaka University, Japan

Modeling of Flotation Process in Aluminum Melt Treatment
M. Maniruzzaman and M.M. Makhlouf
Worcester Polytechnic Institute, USA

Analysis of Ripple Formation in Single Crystal Spot Welds
M. Rappaz, D. Corrigan, and L.A. Boatner
EPFL, Switzerland

Experiments on Phase Change Processes Controlled by Convective Heat and Mass Transfer
S. Mergui, B. Feroual, D. Joly, C. Bénard, and D. Gobin
CNRS FAST - URA 871, France

Tuesday, June 9, 1998

Macrosegregation
Cast Iron Structure
Heat and Flow Modeling of Continuous Casting Processes

Manned: Tuesday, June 8, 1998 4:30 - 6:00 pm and 9:00 - 10:00 pm
Unmanned: Monday, June 9, 1998 4:00 - 5:30 pm and 10:00 - 11:00 pm

Macrosegregation
Chair: I. Ohnaka
Osaka University, Japan

Macrosegregation Observed in an A356 Alloy Part Manufactured by
Squeeze-Casting Process
J-L. Doudoux, N. Hueber, A. Remy, and T. Callais
ENSAM, France

Solue Diffusion During the Eutectic Reaction in Micro-Macrosegregation Modelling
H. Combeau and A. Mo
Ecole des Mines de Nancy, France

Analytical Expressions for the Inverse Segregation with Finite Solute Diffusion in the Solid Phase
E. Haug and H.J. Thevik
SINTEF Materials Technology, Norway

3D Modelling of Heat, Momentum and Solute Transport in Laser Surface Alloying
N. Pirch, E.W. Kreutz, X. He, and B. Mordike
Fraunhofer Gesellschaft, Germany

A Comparison Between Experiments and Empirical Criteria Predicting A-Type Segregations and Microporosity
I. Vannier, C. David, H. Combeau, and G. Lesoult
Sciences and Computers Consult., France

Effect of Section Changes on Microstructure and Segregation in
Directionally Solidified Castings
D. Xu, X. Wang, Q. Li, and R.D. Pehlke
University of Michigan, USA

Numerical Determination of the Permeability Tensor in a Columnar Dendrite Mushy Zone
B. Goyeau, T. Benihaddadene, D. Gobin, and M. Quintard
CNRS FAST - URA 871, France

Cast Iron Structure
Chair: O. Yu
Concurrent Technologies, USA

Prediction of the Solidification Microstructure of Hypo- and Hypereutectic Spheroidal Graphite Cast Irons
M. Castro Roman, A. Charbonnier, V. Gerval, J. Lacaze, S. Langlois,
G. Lesoult, T. Margaria, and R. Siclari

Physical Simulation of Solidification in a Hot Stage Microscope Applied in the Modeling of Ductile Iron Castings
R. Aagaard and K.A. Thorsen
Technical University of Denmark

Natural Convection Effects in Cast Iron
F. Mampaey and Z.A. Xu
WTCM Foundry, Belgium

Influence of Copper, Tin and Manganese on Ferrite Formation in Ductile Iron: Experiments, Models and Simulation
M. Wessén
Jonkoping University, Sweden

Heat and Flow Modeling of Continuous Casting Processes
Chair: J.W. Evans
University of California, USA

Implicit Analysis of Filling and Solidification During the Start-Up Stage of DC Casting Process
B. Minaie and S. Peng
University of Massachusetts, USA

Internal Flow and Shell Solidification in Horizontal Continuous Casting Processes
V. Noshadi, W. Schneider, and A.V. Kuznetsov
Technical University of Vienna, Austria

Heat Transfer and Solidification in Horizontal Strip Casting
M. Digruber, S. Haas, and W. Schneider
Technical University of Vienna, Austria

Segregation Effects in Rapidly Solidified SiC Reinforced Aluminium
Composites
L. Katgerman, N.J. Fei, and W.H. Kool
Delft University of Technology, The Netherlands

Fluid Flow Aspects of Metal Delivery Systems for the Casting of Steel and Aluminum
W.K. Jones, Jr., D. Xu, and J.W. Evans
University of California, USA

Wednesday, June 10, 1998
Stress Modeling Applications
Grain Structure Modeling
Direct Microstructure Simulation

Manned: Wednesday, June 10, 1998 4:00 - 5:30 pm and 10:00 - 11:00 pm
Unmanned: Thursday, June 11, 1998 5:00 - 6:30 pm and 9:00 - 10:00 pm

Stress Modeling Applications
Chair: K. Pericleous
University of Greenwich, United Kingdom

Computational Modelling of Interacting Phenomena in the Shape Casting Process
M. Cross, C. Bailey, K.A. Pericleous, S.M. Bounds, GJ. Moran,
G.A. Taylor, and K. McManus
University of Greenwich, United Kingdom

Thermal Stress and Crack Prediction of Investment Casts Alloys
L.C. Wüker, M. Fackeldey, P.R. Sahm, and B.G. Thomas
Giesserei Institute, Germany

Prediction of Welding Deformations by FEM Based on Inherent Strains
J. Wang and H. Lu
Shanghai Jiao Tong University, China

Numerical Simulation Steam Generator Repairs
L. Junek, V. Ochodek, and M. Slovacek
Institute of Applied Mechanics, Czech Republic

Shrinkage Prediction in the Thermomechanical Analysis of Castings
D. Celentano
University of Santiago, Chile

Computational Modelling of Mould Design in Lead Ingot Casting
C. Bailey
University of Greenwich, United Kingdom

Grain Structure Modeling
Chair: S. Marsh
Naval Research Laboratories, USA

Prediction of Stray Crystal Formation During Solidification of Dendritic Alloys
A. de Bussac and Ch.A. Gandin
SNECMA, France

Experimental Study of the Columnar to Equiaxed Transition in a Refined
AL-4WT%CU Alloy Under Diffusive Transport Conditions
M.D. Dupouy, D. Camel, F. Botalla, J. Abadie, and J.J. Favier
CEA/CEREM/DEM, France

Effects of Grain Transport on Columnar to Equiaxed Transition in Dendritic Alloy Solidification
J.W. Gao and C.Y. Wang
Pennsylvania State University, USA

A 3D CAFE Model for the Prediction of Solidification Grain Structures
J.-L. Desbiolles, Ch.-A. Gandin, J.-F. Joyeaux, M. Rappaz, and
Ph. Thévoz
EPFL, Switzerland

Direct Microstructure Simulation
Chair: J. Dantzig
University of Illinois, USA

Adaptive Grid Methods in Solidification Microstructure Modeling
N. Provatas, N. Goldenfeld, and J.A. Dantzig
University of Illinois, USA

An Anisotropic Multiphase-Field Model: Interfaces and Junctions
B. Nestler and A.A. Wheeler
University of Illinois, USA

Microstructural Development in Undercooled Germanium
D. Li
NASA/MSFC, USA

Simulations of Binary Eutectic Microstructures Using the Multi-Phase-Field Method
M. Seesslberg and J. Tiaden
Access e.V., Germany

Modeling of Convection-Influenced Coarsening of a Binary Alloy Mush
Using the Phase-Field Method
H.-J. Diepers, C. Beckermann, and I. Steinbach
Access e.V., Germany

Three-Dimensional Modeling of Equiaxed Dendritic Growth on a
Mesoscopic Scale
I. Steinbach, B. Kauerauf, C. Beckermann, J. Guo, and Q. Li
Access e.V., Germany

Solidification in Heterogeneous Media: A Numerical Study at a Small
Scale
E. Arquis and J.-P. Caltagirone
University of Bordeaux, France

Numerical Simulation of Dendrite Morphology and Grain Growth with
Modified Cellular Automata
U. Dilthey and V. Pavlik
ISF Welding Institute, Germany

The Influence of Convection on Dendrite Tip Shape Morphology
J.C. LaCombe, M.B. Koss, A.Lupulescu, L.A. Tennenhouse, and
M.E. Glicksman
Renssalaer Polytechnic Institute, USA

Direct Numerical Simulation of Solidification Microstructures Affected by Fluid Flow
D. Juric
Los Alamos National Laboratory, USA

Phase Field Simulation of Dendritic Growth with Convection
X. Tong, C. Beckermann, and A. Karma
University of Iowa, USA

Thursday, June 11, 1998

Semi-Solid Casting
Hot Tearing
Casting Design Tools
Heat-Transfer Modeling Applications

Manned: Thursday, June 11, 1998 5:00 - 6:30 pm and 9:00 - 10:00 pm
Unmanned: Wednesday, June 10, 1998 4:00 - 5:30 pm and 10:00 - 11:00 pm

Semi-Solid Casting
Chair M. Bellet
Ecoles des Mines de Paris

Modeling the Rheology of Semi-Solid Metal Alloys During Die Casting
C.J. Paradies, M. Rappaz, T. Imwinkelried, and J.P. Gabathuler
Northrop Grumman, USA

Numerical Modelling of Extrusion for a Semi-solid Alloy
F. Bay, J. Barlier, Y. Chastel, M. Bobadilla, and G. Lovato
CEMEF, France

Modeling and Experimental Control of Heat and Mass Transfer in Semi
Solid DC Casting
U. Feurer and A. Wahlen
Federal Institute of Technology, Switzerland

Modeling the Structural Parameters of Semi-Solid Cast Material (A356)
A. Wahlen and U. Feurer
Ferderal Institute of Technology, Switzerland

Die Filling Studies of Aluminium Alloy AlSi7Mg0.3Sr in Its Semi-Solid State
F.C. Yee, S.W. Hao, X.P. Niu, and B.H. Hu

Hot Tearing
Chair: M. Bellet
Ecoles des Mines de Paris, France

A Solidification Model for Use in the Prediction of Hot Tears in Castings
A. Ahmed and U. Chandra
Concurrent Technologies Corp., USA

Study on Stress-Strain Simulation of Cast Steel Test Bar by Rheological Model
J.W. Kang, Y. Chen, B.C. Liu, M.J. Jin, and H. Zoo
Tsinghua University, China

Modeling of Thermal Stresses Near the Liquid-Solid Phase Boundary
M. Diemer and D. Franke
ACCESS e.V., Germany

A Measurement of Critical Strain for Internal Crack in Continuously Cast Slabs
K. Nakayama, M. Kinefuchi, and K. Tsutsumi
Kobe Steel, Ltd., Japan

Influence of Alloying Elements and Cooling Conditions on Hot Tearing of Steel,
Measured by the SSCT-Test
C. Bernhard, H.Moitzi, H. Hiebler, and M.M. Wolf
University of Leoben, Austria

Casting Design Tools
Chair: A. Ludwig
Giesserei Inst. RWTH Aachen, Germany

The Influence of Fluid Flow on the Last Point to Solidify in a Casting
B. Minaie and V.R. Voller
University of Massachusetts, USA

Cast-Aid: A Decision Support System for Designing Castings
T.J. Mileman, D. Knight, D.F. Cowell, and K.L. Preddy
University of Greenwich, United Kingdom

Optimization Tools for Bridgman Casting Process
G. Laschet, M. Schallmo, and N. Hofmann
ACCESS e.V., Germany

New Developments in Green Sand Moulding of Automotive Aluminium
Castings
P.N. Hansen, N.W. Rasmussen, M. Wanzeck, U. Andersen, and P.L. Larsen
Georg Fischer Disa A/S, Denmark

A Study of Neural Networks for Porosity Prediction in Aluminum
Alloy 356 Castings
J. Huang, J.G. Conley, and P. Callau
Northwestern University, USA

Application of Process Modeling to Large Titanium and Superalloy Structural Investment Castings and Wax Pattern Injection Molding
D.H. Hirvo, A.M. Hines, B.A. Mueller, J. He, G.D. Morwood, and T.S. Simon

Heat-Transfer Modeling Applications
Chair: K. Pericleous
University of Greenwich, United Kingdom

Heat Transfer Coefficients Between a Hollow Cylinder Casting and Metal Mold
T-G. Kim, Y-S. Choi and Z-H. Lee

A Study of the Variation of Heat Transfer Coefficients in Aluminum Investment Casting
D. O'Mahoney and D.J. Browne

The Pressure Die Casting Process: Effective Models for Boiling,
Solidification and Metal Injection
K. Davey, S. Hinduja, L. Rosindalf, and L.D. Clark

Water Effects and Thermal Behavior of a Sand, Thermal Properties
Identification by Optimization Tools
N. Hueber and Z. Ignaszak

A Critical Evaluation of Criteria Functions for Use with Shaped-Casting Modeling
R.P. Taylor, J.T. Berry, and R.A. Overfelt

Numerical Analysis of Steel Solidification Using Finite Difference
Method and Finite Element Method
W. Palmiere and R.G. dos Santos

Computer Modelling of the Formation of Macro Shrinkage Cavities
During Solidification
J. Beech, M. Barkhudarov, K. Chang, and S.B. Chin

Friday, June 12, 1998 Benchmark Experiments
Chairs: B.G. Thomas
University of Illinois
and
C. Beckermann
University of Iowa

Experimental Investigation of Mold Filling in High Pressure Die Casting
M. Schmid and F. Klein
ARGE Metallguss, Germany

Mold Filling Experiments of Cast Alloys Using Video Monitoring
A. Louvo, K. Saarinen, and K. Rautama
VTT Metallurgy Laboratory, Finland

Particle Imaging Velocimetry of the Liquid Pool During Casting of Aluminum and Steel - A Benchmark Study
D. Xu, W.K. Jones, Jr., and J.W. Evans
University of California-Berkeley, USA

Micro and Macrostructural Features and Heat Transfer During Plasma Melting of IN 718
R.M. Ward, T.P. Johnson, and M.H. Jacobs
University of Birmingham, United Kingdom

Measurements of Temperatures on a Large Engine Block During Solidification
E.P. Warnke and D. Bounin
Siempelkamp Giesserei GmbH, Germany

Measurement of Temperature, Solidification, and Microstructure in a Continuous Cast Thin Slab
B.G. Thomas, R. O'Malley and D. Stone
University of Illinois, USA

Microstructural Evolution of a 319 Aluminum Alloy During Solidification
J.W. Zindel, L.A. Godlewski, and W.T. Donlon
Ford Motor Company, USA

Variation in Temperature and Dimension During the Solidification of Nodular Graphite Iron Casting
E. Fras, W. Kapturkiewicz, H.F. Lopez, A. Bielet, A. Burbelko, and Z. Wröbel

Experiment on the Dimensional Changes of Steel Castings During
Solidification
F.E. Peters and R.C. Voigt
Pennsylvania State University, USA

Benchmarking Experiments for Permanent Mold Aluminum Alloy A356 Castings
J.G. Conley and J. Huang
Northwestern University, USA

Internal and External Porosity in Short, Medium and Long Freezing Range Aluminum Alloy Castings
Y. Li, M.R. Jolly, and J. Campbell
University of Birmingham, United Kingdom

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