Corrosion behavior of iron-aluminum alloys and its composite steel in sulfuric acid

Naoya Masahashi; Go Kimura; Masaoki Oku; Koichi Komatsu; Sadao Watanabe; Shuji Hanada

doi:10.1016/j.corsci.2005.02.025

Corrosion behavior of iron-aluminum alloys and its composite steel in sulfuric acid

Naoya Masahashi, Go Kimura, Masaoki Oku, Koichi Komatsu, Sadao Watanabe, Shuji Hanada

Cooperative Research and Development Center for Advanced Materials

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

20 Citations (Scopus)

Abstract

The corrosion behavior of an iron-aluminum alloy with bcc structure and a composite of an iron-aluminum and a steel was studied in H₂SO ₄ solution. The corrosion resistance deteriorates with increasing aluminum content of an iron-aluminum alloy. XPS measurements showed a magnetite formation on the corroded surface and a preferential corrosion of iron. The corrosion resistance for the composite of an iron-aluminum alloy and a CrMo steel is comparable to that of a CrMo steel. This implies that a corrosion-resistant composite is achievable by controlling the aluminum content of the Fe-Al alloy without the additives.

Original language	English
Pages (from-to)	829-839
Number of pages	11
Journal	Corrosion Science
Volume	48
Issue number	4
DOIs	https://doi.org/10.1016/j.corsci.2005.02.025
Publication status	Published - 2006 Apr

Keywords

A. Alloy
B. XPS
C. Acid corrosion
Intermetallics
SEM

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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title = "Corrosion behavior of iron-aluminum alloys and its composite steel in sulfuric acid",

abstract = "The corrosion behavior of an iron-aluminum alloy with bcc structure and a composite of an iron-aluminum and a steel was studied in H2SO 4 solution. The corrosion resistance deteriorates with increasing aluminum content of an iron-aluminum alloy. XPS measurements showed a magnetite formation on the corroded surface and a preferential corrosion of iron. The corrosion resistance for the composite of an iron-aluminum alloy and a CrMo steel is comparable to that of a CrMo steel. This implies that a corrosion-resistant composite is achievable by controlling the aluminum content of the Fe-Al alloy without the additives.",

keywords = "A. Alloy, B. XPS, C. Acid corrosion, Intermetallics, SEM",

author = "Naoya Masahashi and Go Kimura and Masaoki Oku and Koichi Komatsu and Sadao Watanabe and Shuji Hanada",

note = "Funding Information: The authors gratefully acknowledge to Dr. Takada and Mr. Ishiguro for helpful advices on the establishment of corrosion test, and Mr. Konno, Mr. Shoji, and Mr. Sakamoto for chemical analysis. A part of this work was performed at Laboratory for Advanced Materials, Institute for Materials Research, Tohoku University. One of authors (N.M.) would like to thank the Toray Science Foundation for a provision of a research grant.",

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AU - Masahashi, Naoya

AU - Kimura, Go

AU - Oku, Masaoki

AU - Komatsu, Koichi

AU - Watanabe, Sadao

AU - Hanada, Shuji

N1 - Funding Information: The authors gratefully acknowledge to Dr. Takada and Mr. Ishiguro for helpful advices on the establishment of corrosion test, and Mr. Konno, Mr. Shoji, and Mr. Sakamoto for chemical analysis. A part of this work was performed at Laboratory for Advanced Materials, Institute for Materials Research, Tohoku University. One of authors (N.M.) would like to thank the Toray Science Foundation for a provision of a research grant.

PY - 2006/4

Y1 - 2006/4

N2 - The corrosion behavior of an iron-aluminum alloy with bcc structure and a composite of an iron-aluminum and a steel was studied in H2SO 4 solution. The corrosion resistance deteriorates with increasing aluminum content of an iron-aluminum alloy. XPS measurements showed a magnetite formation on the corroded surface and a preferential corrosion of iron. The corrosion resistance for the composite of an iron-aluminum alloy and a CrMo steel is comparable to that of a CrMo steel. This implies that a corrosion-resistant composite is achievable by controlling the aluminum content of the Fe-Al alloy without the additives.

AB - The corrosion behavior of an iron-aluminum alloy with bcc structure and a composite of an iron-aluminum and a steel was studied in H2SO 4 solution. The corrosion resistance deteriorates with increasing aluminum content of an iron-aluminum alloy. XPS measurements showed a magnetite formation on the corroded surface and a preferential corrosion of iron. The corrosion resistance for the composite of an iron-aluminum alloy and a CrMo steel is comparable to that of a CrMo steel. This implies that a corrosion-resistant composite is achievable by controlling the aluminum content of the Fe-Al alloy without the additives.

KW - A. Alloy

KW - B. XPS

KW - C. Acid corrosion

KW - Intermetallics

KW - SEM

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EP - 839

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

IS - 4

ER -

Corrosion behavior of iron-aluminum alloys and its composite steel in sulfuric acid

Abstract

Keywords

ASJC Scopus subject areas

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