The Microstructure and Mechanical Properties of As-rolled Dual Phase Steel: Part I - Manganese Partitioning and Microstructure

A systematic study on the influence of pre-annealing and post-annealing heat-treatments on the microstructure and the manganese partitioning between martensite and ferrite phases of dual phase steel has been made. The partitioning coefficient decreases with increasing annealing temperature and increases with annealing time until reaching the final equilibrium value.