Microstructure Development of Complex Phase Steels During

This thesis presents an in-depth investigation into the microstructure development of Complex Phase (CP) steels during thermomechanical processing (TMP). The objective of this research is to gain a better understanding of how different processing parameters affect the resulting microstructure in these advanced materials. Employing advanced characterization techniques such as Electron Backscatter Diffraction (EBSD), the study meticulously analyzes the phases present, including ferrite, bainite, martensite, and occasionally retained austenite within the CP steels. A comprehensive experimental methodology was established, wherein the TMP route was systematically designed, and the EBSD maps were constructed to identify and quantify the microstructural phases in various specimens. The results reveal that the microstructural evolution is significantly influenced by processing conditions, which is crucial for optimizing the mechanical properties of CP steels. The findings contribute valuable insights that may guide future research and development efforts in the steel industry, particularly for applications requiring high strength and ductility.