A Study on Manufacturing Processes and Compressive Properties of Zinc-Aluminium Metal Foams

摘要

The aim of this paper is to discuss mechanical properties of different zinc-aluminium alloy foams that can be used as a substitute metal foam in place of aluminium and other low temperature metal alloy foams. ZA alloys have better wear resistance and self lubricating properties than aluminium and therefore can be used in automobile applications. Different fabrication processes that are adopted to manufacture ZA alloy and the compressive stress-strain characteristics of these are discussed. A comparison between energy absorption abilities of ZA12, ZA22 and ZA27 is presented. And, the compressive strength and energy absorption features of ZA22, ZA22/SiC_p and ZA22/Al₂O₃ was compared. It was observed that ZA27 has high energy absorption capacity. And, ZA22 composite foams, i.e. ZA22/SiC_p and ZA22/Al₂O₃, have better compressive strength and energy absorption features.