Corrosion Action of Carboxyl and Phenol Hydroxy on 27SiMn Low-alloy Steel

J Chin Soc Corr Pro

2004, Vol. 24

Issue (5): 311-313 DOI:

Science Report

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Corrosion Action of Carboxyl and Phenol Hydroxy on 27SiMn Low-alloy Steel

Zengzhi Zhang

中国矿业大学北京校区机械电子系

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Abstract Lignite and peat show acid when mixing with water. The corrosion acton of carboxyl and phenol hydroxy of lignite and peat on low-alloy steel was studied. Prepared solutions and saturated coal samples of lignitd and peat respectively served as the media of corroson experiments, and the pH levels were measured. The corrosion mechanism of 27SiMn low-alloy steel in these media was analyzed through measuring polarization curves and infrared spectrums. The results show that thecarboxyl and phenol hydroxy of lignite accelerate the corrosion of 27SiMn low-alloy steel, while the carboxyl and phenol hydroxy of peat have inhibitory action on anodic dissolution of 27SiMn low-alloy steel because of the existence of oxy functional groups compound with bitumen.

Key words: lignite peat corrosion low-alloy steel

Received: 20 May 2003

ZTFLH:

TG178

Corresponding Authors: Zengzhi Zhang E-mail: Z.Zengzhi@263.net

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Cite this article:

Zengzhi Zhang. Corrosion Action of Carboxyl and Phenol Hydroxy on 27SiMn Low-alloy Steel. J Chin Soc Corr Pro, 2004, 24(5): 311-313 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2004/V24/I5/311

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