A Study on the Corrosion Behavior of 7072/3004/7072 Clad Aluminum Alloy in Different Media

I. Tunc, B. D. Karahan, O. Keles*

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

6 Atıf (Scopus)

Özet

Cladding is an easy and economical method to design multifunctional aluminum structures with improved corrosion resistance, mechanical strength, and physical appearance. In this study, the electrochemical properties and corrosion behavior of an aluminum-clad product made of 7072/3004/7072 aluminum alloys were investigated by Tafel extrapolation and impedance spectroscopy. 3004 aluminum sheet was used as core, and it was cladded with 7072 aluminum sheets on both sides. The long-term corrosion behavior of clad samples was examined after being immersed in tap water, rainwater, and 3.5 wt.% NaCl solution for 4 weeks. The results show that because of the potential difference between 7072 and 3004 aluminum alloys, 7072 alloy behaves more anodic and corrodes preferentially (with a slower rate) compared to 3004 aluminum alloy. Cladding 3004 with embossed 7072 alloy improves the corrosion resistance of the alloy. Moreover, the electrolyte comparison demonstrates that the carbonate-forming ions (such as Ca) in tap water and HCO3, NO3, and SO42− in rainwater decelerate the corrosion rate.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)4506-4514
Sayfa sayısı9
DergiJournal of Materials Engineering and Performance
Hacim29
Basın numarası7
DOI'lar
Yayın durumuYayınlandı - 1 Tem 2020

Bibliyografik not

Publisher Copyright:
© 2020, ASM International.

Finansman

Authors would like to thank Prof. Dr. Gultekin Goller and Mr. Huseyin Sezer for proving necessary laboratory equipments and helping with SEM analysis, to Mr. Bora Tarhan for supplying clad aluminum sheet for experiments, to Mr. Husnu Ozturk for metallographic analyses, and to Istanbul Metropolitan Municipality Environmental Protection Directorship Anatolian Side Environmental Laboratories for analyzing the chemical composition of the electrolytes.

FinansörlerFinansör numarası
Istanbul Metropolitan Municipality Environmental Protection Directorship Anatolian Side Environmental Laboratories

    Parmak izi

    A Study on the Corrosion Behavior of 7072/3004/7072 Clad Aluminum Alloy in Different Media' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

    Alıntı Yap