Fluid flow conditions in the weld may induce collision and coalescence of inclusions. In addition, thermal fluctuations may lead to growth and dissolution of inclusions. Application of the model - Use of thermodynamic calculations. Drastic change in inclusion distribution was observed between SA, LB, and EB welds. Approximate weld cooling curves were used for inclusion model predictions.
Calculated trends agree with experimental observations.
Ti concentration in the inclusions agree with experimental trends. Future Work Application of these models to a wide range of welding conditions requires consideration of following issues. Summary and Conclusions We need to identify the relationship between inclusion characteristics and acicular ferrite transformation kinetics.