Abstract
The numerical simulation by multi-phase field method (MPFM) has been performed in association with calculation of phase diagram. Microstructure formations during solidification, cooling and heat treatment in SUS304 are simulated in conditions of multi-component and multi-phase alloy. It is confirmed that dendrite growth and δ/γ transformation can be predicted and reasonable agreements with dendrite growth theory and previous works are obtained. Moreover, dissolution behavior of δ-ferrite during heat treatment can be also evaluated by MPFM. It will be a useful tool in analyzing the microstructure formation in welding process.
