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Effect of aluminum on the corrosion resistance of low-alloy steel in 10wt% sulfuric acid solution

journal contribution
posted on 2012-11-01, 00:00 authored by N Nam, W Kim, J Kim
The aqueous corrosion behavior of low-alloy steel with aluminum contents was examined in a 10 wt% H2SO4 (pH 0.13) solution using electrochemical techniques and surface analyses. The corrosion resistance of the new alloy steel was evaluated in terms of electrochemical parameters, such as passive current density, film, and charge transfer resistances. The results showed that a high Al content in the steel imparted better passivation behavior resulting in a lower corrosion rate. It related to the enrichment of iron carbonate and hydrocarbon by the dissolution of the carbide phase.

History

Journal

Materials and corrosion

Volume

63

Issue

11

Pagination

1004 - 1010

Publisher

Wiley - VCH Verlag GmbH & Co. KGaA

Location

Weinheim, Germany

ISSN

0947-5117

eISSN

1521-4176

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2011, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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