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

摘要

This paper describes by powder metallurgy route method to make the ⊘50mm 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.