Although there are a lot of the fabricating techniques of functionally gradient material (FGM), the centrifugal casting method is more effective, cheaper and easier to operate.

The functionally gradient material (FGM) is a non-homogeneous composites which feature a gradual change in properties with the gradient or continuous change of component from one surface to the other.

This paper presents briefly the concept, design theories and the research content of a recent advanced material - Functionally Gradient Materials (FGM).