Numerical simulation of dual-phase steel based on real and virtual three-dimensional microstructures

Abstract Dual-phase steel shows a strong connection between its microstructure and mechanical properties. This structure–property correlation is caused by the composition of soft ferritic matrix with embedded hard martensite areas, leading to simultaneous increase in strength ductility. As result, dual-phase steels are widely used especially for strength-relevant energy-absorbing sheet metal structures. However, their use as heavy plate also desirable. Therefore, better understanding great interest. Microstructure-based simulation essential realistic properties steel. paper describes entire process route such simulation, from extraction 3D tomography determination individual phases nanoindentation, implementation model validation experiments. In addition simulations based on real microstructures, virtual microstructures importance. Thus, generation presented, allowing same statistical microstructures. With help these structures aforementioned model, it then possible predict steel, whose three-dimensional (3D) not yet known high accuracy. will enable future investigations new within laboratory even before production.