Latest Progress in Development of Cold Rolled Complex Phase Steel
Advanced high strength steels (AHSS) are widely used in body in white to improve safety, energy saving and reduce emission. Compared with common high strength steel, there are multi phase microstructures for advanced high strength steels, but the common high strength steel is just a phase ferrite. It is improved strength through achieving hard phase during phase transformation. The advantages of advanced high strength steels are high strength, excellent formability, resisting depressed deformation and energy absorption. This paper describes the latest progress in development and research of advanced high strength steels to provide some reference for developing complex phase steel.