Finite Element Modeling of Fluid Flow and Heat Transfer in the Weld Pool of CMSX-4 Nickel Based Superalloy

Abstract The goal of this study is to determine the characteristics necessary to develop a robust finite element model to accurately predict weld pool shape, size, and fluid properties during a repair weld to a piece of CMSX-4 Nickel-based superalloy. The calculations will take into account the possibilities of turbulence, temperature dependent material property values and different heat input values. It is expected that the model created using the FIDAP software package from FLUENT will be beneficial for future welding simulations. This model was also compared to results from a FORTRAN code written by a separate group at Penn State that have previously been found to be comparable to acceptable experimental values.