Finite element simulation for clad pipes of carbon steel and high chromium cast iron by centrifugal casting

The interface of carbon steel and high chromium cast iron clad pipes achieved metallurgical bonding by centrifugal casting. Finite element simulation was used to study the temperature fields of the outer layer and inner/outer layer. The results showed that the minimum temperature of outer layer casting (20 steel) reached 1430℃ after centrifugal casting for 9 s, which is lower than the solidus temperature (1490℃). A steady-regular transition layer can be formed when the interval of casting was 9 s. When the temperature of 20 steel reduced to 1 350℃, the high chromium cast iron was cast. After 30 s, the inner temperature reduced to 1 257℃ which is below the solidus temperature of high chromium cast iron, then the solidification finished completely.