List of Speakers SYMPOSIUM: Light Metals for Transportation

hosted byOctober 27-31, 2013, Montreal, QuebecList of SpeakersRevised: Monday, April 22, 2013SYMPOSIUM:Light Metals for TransportationCanadian Metallurgical Quarterly (CMQ):Topic Distributions In The First 50 Years 1961-2011ID: 71190Type: ContributedSpeaker: Hugh McQueen, Concordia University, CanadaAuthor(s): H. McQueen, N. KilingiFor insight into Metallurgical Society CIM activities during the past half century, the subjects published in the CMQ wereclassified into 40 topics as presented in tables at 5 year intervals; graphs compare the relative changes over the years.Hot workability of Al alloys is charted in comparison to Mg alloys and steels. The significant groups started from propertieswith divisions for microstructural, physical, thermo dynamic and mechanical; the last has more details for hot workability(author’s specialty): Al alloys, C/HSLA, tool, stainless steels, Cu and Ni alloys, and hexagonal metals. Secondaryprocessing includes hot working, cold working / annealing, casting, welding, and heat treatment. Extractive metallurgyincludes steel making, smelting / non-ferrous, hydro-metallurgy and mineral dressing / flotation. There are headings alsofor environment, energy and history as well as ceramics, polymers and semi-conductors. For hot working, there is somediscussion of Met. Soc. Proceedings, especially Light Metals volumesCharacterisation of the Creep Behaviour of the Cathode Steel Bar Connector at High Temperatures and LowStress LevelsID: 72366Type: ContributedSpeaker: Femi Fakoya, REGAL, Universite Laval, CanadaAuthor(s): F. Fakoya, D. Picard, H. Alamdari, M. FafardMechanical properties of carbon steel at high temperatures, low stress levels are important and their performance inapplications such as aluminium production cell, power plants and nuclear reactor plants are still not well understood.Hence, an experimental program was carried out to investigate the mechanical properties of carbon steel in thisaggressive environment. The mechanical properties of carbon steel in austenite temperature region and particularly lowstress levels have been investigated in relation to its creep behaviour in compression with an eye towardscharacterisation. The mechanical properties were obtained under a steady state compression test at ambient and hightemperatures up to 950oC. The time dependent mechanical properties were also obtained usingcompression creep tests at constant low stresses (0.5 – 1 MPa) and constant high temperatures (800–950oC). A stress required to activate creep at high temperature was identified and minimum temperaturerequired for activating creep deformation was also determined.Characterization of Fir-Tree Zones in AA1050 DC Cast IngotID: 71822Type: ContributedSpeaker: Zhan Zhang, University of Quebec at Chicoutimi, CanadaAuthor(s): Z. Zhang, G. Li, X. ChenFir-tree zones, caused by transition of various Fe-bearing intermetallics in cast microstructure, are one of mostencountered defects in aluminum direct chill (DC) cast ingots, which could result in serious surface problems for highquality surface appearance products. However, the formation mechanism of fir-tree zones has not been well understoodbecause of great challenges on identification and quantification of the Fe-bearing intermetallics. Using combination ofelectron backscattered diffraction, energy dispersive spectrum and image analysis techniques, the transition of Fe-bearingintermetallics throughout the fir-tree zones of AA1050 DC ingot were quantitatively investigated. It was found that severalintermetallics such as AlmFe, a-AlFeSi, Al6Fe, Al3Fe and Ni-containing (AlFeNi) phases co-existed in the zones. Typicalintermetallics morphology in the zones was revealed using deep-etching technique. The volume fraction and distributionPage 2 of 17