Open AccessThe Effect of Different Pre-Surface Finishing Method on the Aluminium Anodization of the 6XXX Series Alloy
Author(s) -
MERVE ÖZCAN,
BİLGEHAN TUNCA,
IPEK BILTAŞ,
Tunç Tüken
Publication year - 2021
Publication title -
acta metallurgica slovaca
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 13
eISSN - 1338-1156
pISSN - 1335-1532
DOI - 10.36547/ams.27.4.1109
Subject(s) - hydrofluoric acid , anodizing , aluminium , pickling , materials science , surface roughness , nitric acid , gloss (optics) , metallurgy , etching (microfabrication) , aluminium alloy , sulfuric acid , surface finishing , surface finish , alloy , 6063 aluminium alloy , isotropic etching , composite material , layer (electronics) , coating
In this study, the effect of different pre-surface finishing method on the aluminium anodization was investigated for AA 6063 alloy. Within the scope of pre-surface finishing method which is acidic solution concentrations and process time were determined. Acidic solution was determined by using hydrofluoric acid (HF) and nitric acid (HNO3). Also Gresoff LIM-5 LV chemical was used with different concentrations and process time for degreasing process. The etching effect of acidic solution on aluminium samples was investigated. The optimal etching behaviour was obtained with 1.0% concentration of HF and 3.2% concentration of HNO3 at 10 minutes process time. Also optimal surface properties were observed with 1.0% concentration of Gresoff LIM-5 LV at 12 minutes process time. Then anodic oxidation was performed by using 180 g / L sulfuric acid (H2SO4) and 18 volt (V). Surface morphology of the final aluminium profiles were examined with SEM analysis, Roughness, Gloss and Thickness tests.