Preparation and Quasi-static Compression Behavior of Steel Matrix Syntactic Foams

Metal matrix syntactic foams have been attracting considerable attention in recent years due to their potential applications in lightweight structures and energy absorption. In this paper, CF-8 cast austenitic stainless steel with hollow Al2O3 spheres’ syntactic foams was prepared by infiltration casting technology. The effects of preheat temperature of ceramic mold and diameter of hollow ceramic spheres on the forming ability of infiltration casting of syntactic foams were investigated and the results showed that suitable preheat temperature of ceramic mold is a necessary prerequisite to produce the syntactic foams. And then, the quasi-static compressive behavior of these foams was studied by experimental and numerical simulation and the energy absorption capacity is evaluated.