composite rolls;  High speed steel;  organization;  Research progress

The research status and main problems of high-speed steel materials for composite rolls are discussed, and the research progress of centrifugal casting process, composition design of high-carbon and high-vanadium types, and analysis and control of material microstructure (including carbide and matrix type) are introduced. At present, the application research of the composition and preparation process of high-speed steel materials for composite rolls is mainly concentrated at home and abroad, while the intrinsic change law of composition-process-structure-properties of high-speed steel materials for composite rolls needs to be studied in depth, so as to facilitate stable industrial production and develop a new generation of high-speed steel materials for composite rolls suitable for China’s own characteristics.