硫酸盐还原菌对碳钢腐蚀的影响

中国腐蚀与防护学报

1991, Vol. 11

Issue (1): 46-54

研究报告

本期目录 | 过刊浏览

硫酸盐还原菌对碳钢腐蚀的影响

唐和清;郭稚弧;张君华;张维宇;郑新梅;路琳

华中理工大学化学系;华中理工大学化学系;华中理工大学化学系;华中理工大学化学系;华中理工大学化学系;华中理工大学化学系

EFFECTS OF SULFATE REDUCING BACTERIA ON ANAEROBIC CORROSION OF MILD STEEL

Tang Heqing Guo Zhihu Zhang Junhua Zhang Weigu (Huazhong University of Science and Technology)

全文: PDF(1464 KB)

摘要: 采用失重法,极化曲线法和 SEM 研究了硫酸盐还原菌(SRB)诱导碳钢腐蚀的主要因素。实验结果表明,在 SRB 的代谢过程中,会产生一种挥发性的含磷化合物,它具有一定的腐蚀性,但导致碳钢腐蚀的主要因素是代谢产物中的硫化物,特别是硫化氢,以及在介质中可能大量存在的 Fe~(2+),它们对腐蚀电化学过程有明显的去极化作用。

Abstract：Effects of sulfate-reducing bacteria(SRB)on corrosion of mild steel were investigated with weight-loss method,polarization technique and SEM.Experimental results showed that dur- ing growth of SRBs an unknown volatile phosphorus compound would be formed,which might be corrosive to mild steel.Iron sulfide and hydrogen sulfide produced by the organ- ism made a major contribution to corrosion of mild steel.And in media with the presence of SRBs.additional ferrous ions stimulated the induced corrosion to a great extent.Atomic ration of iron to sulfur in corrosion products of mi]d steel in the culture LFYS of SRBs was about 2.1.A modified mechanism of anaerobic corrosion of mild steel induced by SRBs was proposed.

收稿日期: 1991-02-25

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唐和清;郭稚弧;张君华;张维宇;郑新梅;路琳. 硫酸盐还原菌对碳钢腐蚀的影响[J]. 中国腐蚀与防护学报, 1991, 11(1): 46-54.
. EFFECTS OF SULFATE REDUCING BACTERIA ON ANAEROBIC CORROSION OF MILD STEEL. J Chin Soc Corr Pro, 1991, 11(1): 46-54.

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https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1991/V11/I1/46

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