Open AccessKesan Logam Pengisi Terhadap Struktur Terkimpal Al 6061 Yang Teroksida Pada 600°C
Author(s) -
Nur Azida Che Lah,
Muhamad Hellmy Hussin
Publication year - 2020
Publication title -
journal of advanced research in fluid mechanics and thermal sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.247
H-Index - 13
ISSN - 2289-7879
DOI - 10.37934/arfmts.78.1.4859
Subject(s) - metal , materials science , alloy , metallurgy , base metal , oxide , scanning electron microscope , morphology (biology) , aluminium , welding , nuclear chemistry , composite material , chemistry , biology , genetics
Samples of STK 6061 ER 4043 and STK 6061 ER 5356 were welded respectively using ER 4043 (Al-5%Si) and ER 5356 (Al-5%Mg) filler metal and were oxidized in air environment at 600oC for 40 hours. The focus of the analysis is on the welded metal where the base metal and the filler metal melt together to produce different chemical compositions. The analysis includes kinetic oxidation, material defect testing, surface morphology characterization using SEM-EDX, cross sectioning, elemental mapping and the oxide phases formed on the alloy surface. The results show that welded metal containing Mg tends to accelerate and accelerate the oxidation process, whereas welded metal containing Si may increase the resistance to oxidation.