Mechanical property improvement on the door protection steel pipe by filling aluminum based porous metal

This paper describes by powder metallurgy route method to make the Ø50mm precursor billets and then to be extruded became to small plate-type precursor (5mm×20mm) billets through extrusion machine, and put into the hallow steel pipe heated metal foaming in furnace, At the steel pipe added Al-foam, Under its total weight slightly increase of the condition, raise or improvement mechanical performance of the door protection steel pipe by the energy absorption.