Simulation and validation of repair welding and heat treatment of an alloy 718 plate

This paper describes simulation of repair welding and heat treatment together with measurements for validation. The possibility to replace global heat treatment with local using induction heating is evaluated with respect to obtained residual stresses. A physically based material model is used in the analyses. The result from the residual stress measurement shows that there are no significant differences between local heat treatment and global heat treatment.

► We investigated the possibility to replace global heat treatment with local using induction heating.
► The paper describes simulation of repair welding and heat treatment together with measurements for validation.
► A physically based flow stress model is used in the analyses.
► The temperature field from the electromagnetic-thermal analysis are mapped on to the thermo-mechanical analysis.