Effect of anodizing on galvanic corrosion resistance of Al coupled to Fe or type 430 stainless steel in diluted synthetic seawater

Takumi Kosaba; Izumi Muto; Yu Sugawara

doi:10.1016/j.corsci.2020.109145

Effect of anodizing on galvanic corrosion resistance of Al coupled to Fe or type 430 stainless steel in diluted synthetic seawater

Takumi Kosaba, Izumi Muto, Yu Sugawara

ENG - Materials Science

Tohoku University

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

In 100-times diluted synthetic seawater at 298 K (pH 8.2), the effect of anodizing on the galvanic corrosion resistance of Al coupled to Fe or Type 430 stainless steel was investigated by measuring the galvanic current densities and electrode potentials of the Al. The optimal anodizing conditions for the corrosion prevention of Al/Fe and Al/Type 430 were determined. The results of this study clearly indicate that the increase in the initiation potential of localized corrosion due to anodizing in H₂SO₄ effectively prevents the atmospheric corrosion of Al coupled to steels.

Original language	English
Article number	109145
Journal	Corrosion Science
Volume	179
DOIs	https://doi.org/10.1016/j.corsci.2020.109145
Publication status	Published - 2021 Feb

Keywords

Anodizing
Galvanic corrosion
Pure aluminum
Pure iron
Stainless steel

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10.1016/j.corsci.2020.109145

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title = "Effect of anodizing on galvanic corrosion resistance of Al coupled to Fe or type 430 stainless steel in diluted synthetic seawater",

abstract = "In 100-times diluted synthetic seawater at 298 K (pH 8.2), the effect of anodizing on the galvanic corrosion resistance of Al coupled to Fe or Type 430 stainless steel was investigated by measuring the galvanic current densities and electrode potentials of the Al. The optimal anodizing conditions for the corrosion prevention of Al/Fe and Al/Type 430 were determined. The results of this study clearly indicate that the increase in the initiation potential of localized corrosion due to anodizing in H2SO4 effectively prevents the atmospheric corrosion of Al coupled to steels.",

keywords = "Anodizing, Galvanic corrosion, Pure aluminum, Pure iron, Stainless steel",

author = "Takumi Kosaba and Izumi Muto and Yu Sugawara",

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language = "English",

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T1 - Effect of anodizing on galvanic corrosion resistance of Al coupled to Fe or type 430 stainless steel in diluted synthetic seawater

AU - Kosaba, Takumi

AU - Muto, Izumi

AU - Sugawara, Yu

N1 - Funding Information: This work was supported by JSPS KAKENHI (grant Nos. JP17H01331 ). Takumi Kosaba acknowledges support from GP-MS at Tohoku University . Publisher Copyright: © 2020 Elsevier Ltd

PY - 2021/2

Y1 - 2021/2

N2 - In 100-times diluted synthetic seawater at 298 K (pH 8.2), the effect of anodizing on the galvanic corrosion resistance of Al coupled to Fe or Type 430 stainless steel was investigated by measuring the galvanic current densities and electrode potentials of the Al. The optimal anodizing conditions for the corrosion prevention of Al/Fe and Al/Type 430 were determined. The results of this study clearly indicate that the increase in the initiation potential of localized corrosion due to anodizing in H2SO4 effectively prevents the atmospheric corrosion of Al coupled to steels.

AB - In 100-times diluted synthetic seawater at 298 K (pH 8.2), the effect of anodizing on the galvanic corrosion resistance of Al coupled to Fe or Type 430 stainless steel was investigated by measuring the galvanic current densities and electrode potentials of the Al. The optimal anodizing conditions for the corrosion prevention of Al/Fe and Al/Type 430 were determined. The results of this study clearly indicate that the increase in the initiation potential of localized corrosion due to anodizing in H2SO4 effectively prevents the atmospheric corrosion of Al coupled to steels.

KW - Anodizing

KW - Galvanic corrosion

KW - Pure aluminum

KW - Pure iron

KW - Stainless steel

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JO - Corrosion Science

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ER -

Effect of anodizing on galvanic corrosion resistance of Al coupled to Fe or type 430 stainless steel in diluted synthetic seawater

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