Author/Authors :
Ramazani، نويسنده , , A. and Li، نويسنده , , Y. X. Mukherjee، نويسنده , , K. and Prahl، نويسنده , , U. and Bleck، نويسنده , , W. and Abdurakhmanov، نويسنده , , A. and Schleser، نويسنده , , M. and Reisgen، نويسنده , , U.، نويسنده ,
Abstract :
This work investigates the gas metal arc welding (GMAW) process of high strength hot rolled dual phase sheet steel and discusses the modelling techniques. The thermocycles during welding were measured experimentally and simulated with the software tool SimWeld. The evolution of different diffusional transformational phases was simulated based on dilatometer experiments. MICRESS® was used to simulate the change of the microstructure during heating and cooling periods. The significant input parameters include interface mobility and nucleation density. A simple bainite transformation model was added in MICRESS® since it is needed in predicting the microstructure undergoing fast cooling. The simulation results are compared with experimental findings, and good agreement is achieved.
Keywords :
Dual phase (DP) steel , Microstructure evolution modelling , Phase field modelling , Time–temperature evolution modelling , Gas metal arc welding (GMAW)
