RT Journal Article
SR Electronic
A1 Nová, Iva
A1 Fraňa, Karel
A1 Solfronk, Pavel
A1 Koreček, David
A1 Sobotka, Jiří
T1 Properties of Aluminium Cellular Materials Produced by Powder Metallurgy Using the Foaming Agent TiH2
JF Manufacturing Technology Journal
YR 2022
VO 22
IS 4
SP 444
OP 450
DO 10.21062/mft.2022.051
UL https://journalmt.com/artkey/mft-202204-0006.php
AB A considerable attention is paid to the production and monitoring of the properties of metallic cellular structures and the properties of aluminium foams, respectivly. Foam structures can be manufactured in three basic ways (by blowing the external gas into the melt, by melt gasification due to the thermal decomposition of the foaming agent, by the melting of the foamable preform which contains foaming agent particles). The paper addresses to our publication [18] and furthermore focuses on the investigation of mechanical properties of two types of foamed AlSi12 aluminium alloy samples. Samples (150x25x10 mm) were produced by powder metallurgy using a foaming agent TiH2. The characteristics features of the produced foam structures (relative density, porosity, volume fraction of solids, Young's modulus of elasticity) were studied on AlSi12 alloy samples. In addition, the porosity of samples and continuity of their air cells were monitored usign the scanning electron microscope.