Effect of precursors heat treatment on the energy absorption of aluminium foams

Zbog svoje porozne strukture, aluminijske pjene pokazuju mnoga povoljna svojstva što ih čini pogodnima za mnoge primjene. Cilj ovoga rada je objasniti svojstvo apsorpcije energije aluminijskih pjena i opisati načine njegovog ispitivanja. Kako bi se poboljšala kvaliteta ćelijaste strukture aluminijskih pjena proizvedenih putem metalurgije praha, primjenjuje se toplinska obrada prekursora. U konačnici, ona izaziva značajne promjene u mikrostrukturi pjene u smislu reduciranja stvaranja defekata. U ovom radu, bilo je potrebno istražiti utjecaj toplinske obrade na svojstvo apsorpcije energije.Aluminium foams show many favorable properties due to their porous structure, which makes them suitable for many applications. The aim of this paper is to explain the energy absorption property of aluminium foams and describe its test methods. In order to improve the cellular structure quality of aluminium foams, produced by the powder metallurgical route, the precursor heat treatment is applied. The precursor thermal treatment induces notable changes in the foam microstructure in terms of reducing defects generation. In this study, it was necessary to investigate its influence on the energy absorption property