|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Applications of Solidification Fundamentals
||Inoculant Undercooling Induced Nucleation and Growth during Equiaxed Solidification: Effect of Location and Separation Distance of the Inoculants and Time
||Arvind Prasad, Lang Yuan, Peter D Lee, Mark A Easton, David H. StJohn
|On-Site Speaker (Planned)
The Interdependence Model provides a simple analytical model to predict grain size during equiaxed solidification of a casting. A numerical solidification model, μMatIC, has been used to confirm some of the predictions from the Interdependence Model. This model has been extended so that a value of nucleation undercooling can be assigned to each inoculant particle at specific locations. Inoculants were placed at user-defined locations around a centrally growing grain. The preliminary results from this enhanced model indicate that the centrally growing grain causes a constitutional undercooling field to develop which changes both with time and location. This paper explores the success/failure of inoculants to trigger nucleation events with respect to the position of the user-placed inoculants and the effect of the time-varying undercooling field.
||Planned: Supplemental Proceedings volume