两种硫氧化细菌诱导钢铁腐蚀的电化学评估

中国腐蚀与防护学报

1994, Vol. 14

Issue (2): 168-174

研究报告

本期目录 | 过刊浏览

两种硫氧化细菌诱导钢铁腐蚀的电化学评估

张英;戴明安;王秋

青岛海洋腐蚀研究所;青岛海洋大学

AN ELECTROCHEMICAL EVALUATION OF STEEL CORROSION INDUCED BY TWO SULPHER-OXIDIZING BACTERIA

Zhang Ying;Dai Mingan(Qingdao Institute of Marine Corrosion)Whang Qiu(Qingdao Marine University)

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摘要: 两种硫氧化细菌诱导钢铁腐蚀的电化学评估张英，戴明安，王秋（青岛海洋腐蚀研究所青岛２６６０７１）（青岛海洋大学青岛２６６００３）１前言各国学者对由生物的生命活动引起材料的腐蚀（ＭＩＣ）或降解（Ｂｉｏｄｅｔｅｒｉｏｒａｔｉｏｎ）进行了大量的研究，大多数文献涉及到厌氧的硫酸盐还原菌（ＳＲＢ）的腐蚀作用．硫氧化细菌，特别是产酸的硫杆菌属也引起了人们的注意［１，２］，它们的腐蚀作用主要在于产生硫酸和将?...

Abstract：Electrochemical techniques along with scanning electron microscopy(SEM) andX-ray diffraction analysis(XRD) were employed for investigating the effect of Thiobacillus thioparus(T.P.) and Thiobacillus ferrooxidallces(T.f.) bacteria on the mechanism of Microbiologically Induced Corrosion of Cr-Ni-Mo-V steel and 316L SS. Experimental results showed that both bacteria could attach on the surface of these steels and induce localized changes of the costituents, pH and oxygen levels of the electrolyte. These changes can lead to variations in the types and rates of electrochemical reactions of the steels. T.P. could excrete sulfuric acid and form a slime layer. T.f. could oriize Fe2+ into Fe3+ and form tubercles. In the cultiVation of T.P., the pitting resistance of 316L SS was found to be lower, its mas. and Ecorr became hlgher, an active peak was observed and its Passive range was reduced. However, T.f. has no obvious effect on 316L SS.

收稿日期: 1994-04-25

基金资助:国家自然科学基金

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引用本文:

张英;戴明安;王秋. 两种硫氧化细菌诱导钢铁腐蚀的电化学评估[J]. 中国腐蚀与防护学报, 1994, 14(2): 168-174.
. AN ELECTROCHEMICAL EVALUATION OF STEEL CORROSION INDUCED BY TWO SULPHER-OXIDIZING BACTERIA. J Chin Soc Corr Pro, 1994, 14(2): 168-174.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1994/V14/I2/168

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