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KUSMIČ, D. KLAKURKOVÁ, L. JULIŠ, M. GEJDOŠ, P. VILIŠ, J. ČECH, O.
Originální název
The Corrosion Resistance of Hard Anodised EN AW 7075 T6 Alloy
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
In this paper, commercially cold-rolled and artificial aged EN AW 7075 T6 alloy has been used. To ensure increased corrosion resistance, surface hardness, scratching resistance, and aesthetic features, this aluminium alloy was subsequently hard anodised and hot-water sealed (AC-A). The hard anodizing and sealing process increased surface hardness up to 304 13 HV 1 from an initial surface hardness of 194 3 HV 1. Also, the microhardness of the anodised layer and bulk material has been documented. Scanning electron microscopy (SEM) was used for microstructure and trapped precipitates investigation in the 42.9 1.4 thick formed anodised layer investigation. The T6 treated (AC) and hard anodised together with sealed (AC-A) EN AW 7075 alloy corrosion properties were evaluated using the anodic potentiodynamic polarisation tests (PPT) in a neutral 2.5% NaCl deaerated solution. The corrosion rate CR (mm/y) decreased approx. 39-times for the hard anodised and sealed EN AW 7075 alloy (AC-A), associated with the shift of the E corr (mV) to more positive values, degreased Icorr (µA) and increased Rp (Ohm) values compared to the artificial aged (AC) alloy. Additionally, the pitting was evaluated using laser confocal microscopy, and the pitting coefficient was also calculated.
Klíčová slova
corrosion resistance; 7075-T6; aluminum corrosion
Autoři
KUSMIČ, D.; KLAKURKOVÁ, L.; JULIŠ, M.; GEJDOŠ, P.; VILIŠ, J.; ČECH, O.
Vydáno
22. 8. 2021
Nakladatel
Electrochemical Society
ISBN
9781607685395
Kniha
ECS Transactions
Edice
105
Číslo edice
1
ISSN
1938-6737
Periodikum
ECS Transaction
Ročník
Číslo
Stát
Spojené státy americké
Strany od
329
Strany do
337
Strany počet
9
URL
https://iopscience.iop.org/article/10.1149/10501.0329ecst
Plný text v Digitální knihovně
http://hdl.handle.net/11012/203542
BibTex
@inproceedings{BUT176135, author="KUSMIČ, D. and KLAKURKOVÁ, L. and JULIŠ, M. and GEJDOŠ, P. and VILIŠ, J. and ČECH, O.", title="The Corrosion Resistance of Hard Anodised EN AW 7075 T6 Alloy", booktitle="ECS Transactions", year="2021", series="105", journal="ECS Transaction", volume="105", number="1", pages="329--337", publisher="Electrochemical Society", doi="10.1149/10501.0329ecst", isbn="9781607685395", issn="1938-6737", url="https://iopscience.iop.org/article/10.1149/10501.0329ecst" }