|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Frontiers in Solidification: An MPMD Symposium in Honor of Michel Rappaz
||Granular Modelling of Solidification and Semi-solid Defect Formation
||Andre Phillion, Fariba Sheykh-Jaberi, Hamid Reza Zareie Rajani, Steve L Cockcroft, Daan M. Maijer
|On-Site Speaker (Planned)
In the context of solidification phenomena, granular models combine grain structure at the micro-scale with mechanical deformation and flow at the macro-scale to gain new understanding of semi-solid deformation mechanisms. We present research on the use of a granular-type model to predict hot tearing in aluminum alloys. Examples will be given from the AA6061, A356, and B206 alloy families. The wrought alloy is examined with respect to fusion welding, while the simulations of the two foundry alloys examine the differences in hot tearing behaviour between eutectic and primary –type alloy systems. This type of model closely parallels Professor Rappaz’ research efforts on microstructure development that include the underlying continuum-level physics to improve industrial casting processes.