CALPHAD Based Cellular Model of Dendrite Growth in Welds

Abstract

A computational model of dendritic growth based on the CALPHAD (the CALculation of PHAse Diagrams) thermodynamic model was developed in this study. The dendrite growth was simulated using cellular automata (CA) with the equilibrium conditions in interfacial cells. The developed novel model (CA-CALPHAD) overcomes the current limitation of the published CA models, in which linearized phase diagrams are used, and allows for the investigation of some practical alloys such as stainless steels. To reduce the computational Primarily I would like to thank Allah for being able to complete this study. Then I would like to express my sincere gratitude to my supervisors, professor Andrei Artemev and professor John Goldak for their infinite support. I would also like to thank professor Goldak's team for their corporation. Finally, I owe many thanks to Carleton University and the Department of Mechanical and Aerospace Engineering.