List of Speakers SYMPOSIUM: Light Metals for Transportation

hosted byOctober 27-31, 2013, Montreal, QuebecList of SpeakersRevised: Monday, April 22, 2013SYMPOSIUM:Light Metals for TransportationPot-To-Pot Busbars Thermoelectric ModelID: 72282Type: ContributedSpeaker: Sébastien Guérard, Rio Tinto Alcan, CanadaAuthor(s): S. Guérard, D. OuillonBusbars are used in the aluminum reduction technology to carry current from the cathodic bars of a cell to the anodicassembly of the next one. The electric and thermal performances of these conductors are essential to the smelteroperations.In this work, a thermoelectric finite model of the AP3X and AP6X conductors is presented. The model canrepresent both normal and bypassed configurations, with no limits to the number of pots considered. It is also fullyparameterized, allowing the inclusion or exclusion of the risers, anode beam, cathodes, equipotential wedges, auxiliarybridges, and radiative impact of the nearby shells.The model can be used to assist in amperage creep project, to gaininsight into the operation of the busbars, to assess potential scenarios, and to help consider alternative designs. It hasbeen extensively validated based on experimental measurements from several plants.Practical Use of Fluid Flow and Solidification Modeling in the Shape Casting of Light MetalsID: 70005Type: ContributedSpeaker: Franco Chiesa, Centre de Métallurgie du Québec (CMQ), CanadaAuthor(s): F. Chiesa, N. Giguère, B. TougasIf fluid flow and heat transfer modeling are now a must in any advanced research where these physical phenomena are atplay, they may also be used to solve very practical quality problems in shape casting foundries. User friendly commercialsoftwares are now available at a price accessible even to small foundries. Two case studies will show how fillingsimulations helped overcome the difficulty in filling thin wall magnesium and aluminium castings poured in sand and lowpressure permanent molds. Solidification modeling is a very potent tool for the prediction of internal shrinkage defects aswill be demonstrated on a magnesium automotive LPPM poured bell housing and on an investment cast titaniumvalve.Modeling can also be used to predict the realistic level of quality achievable by a given process as will be shown onan aluminum sand casting subjected to the ASTM B686 standard of quality.Primary Aluminum Processing in Quebec and CanadaID: 74087Type: InvitedSpeaker: , ,Author(s): R. HarriesThe presentation covers various aspects in the development of primary aluminium processing in Quebec and CanadaQuantification of Primary and Eutectic Undercoolings of Impulse Atomized Al-Cu DropletsID: 70856Type: ContributedSpeaker: Abdoul-Aziz Bogno, University of Alberta, CanadaAuthor(s): A. Bogno, P. Delshad Khatibi, H. Henein, C. GandinRapid solidification undercooling of alloys results in microstructures with reduced microsegregation. Indeed, themetastable extension of solute solubility yields materials with relatively low fraction of eutectic structure. This paperreports on the quantification of primary and eutectic undercoolings resulting from rapid solidification of Al-Cu droplets ofdifferent sizes and compositions obtained by Impulse Atomization. Previous work by some of the authors of this studyPage 12 of 17