THE INFLUENCE OF THE LOCAL CORROSION OF 304 STAINLESS STEEL BY ANIONS

J Chin Soc Corr Pro

2003, Vol. 23

Issue (3): 129-133 DOI:

Research Report

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THE INFLUENCE OF THE LOCAL CORROSION OF 304 STAINLESS STEEL BY ANIONS

Chunchun Xv;Xiaomei Wu

北京化工大学材料科学与工程学院

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Abstract Potentiodynamic scan polarization curves were used to study the local corrosion of 304 stainless steel in neutral solution of 0.5 m ol/L NaCl containing various anions and concentration(MoO2-4、WO2- 4、C12H25SO-4 and C12H25C6H4SO-3)at 50℃ ,and indicated the retardation influence and inhibitor effect of the induction a nd propagation of the local corrosion of anions to stainless steel.It was found that,when anions added into the bulk solution,they retarded the local corrosion of stainless steel in the solution.Retardation effect was WO2-4＞MoO 2-4＞C12H25SO-4＞C12H25C6H4SO-3.

Key words: 304 stainless steel localized corrosion anions

Received: 12 November 2001

ZTFLH:

TG172

Corresponding Authors: Chunchun Xv E-mail: chunchunxu@163.com

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Chunchun Xv; Xiaomei Wu. THE INFLUENCE OF THE LOCAL CORROSION OF 304 STAINLESS STEEL BY ANIONS. J Chin Soc Corr Pro, 2003, 23(3): 129-133 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2003/V23/I3/129

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