Detail publikace

The Corrosion Resistance of Hard Anodised EN AW 7075 T6 Alloy

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

105

Číslo

1

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"
}