采用电化学测试、腐蚀失重试验、扫描电镜和能谱分析等方法,研究了10钢在不同含量SS317NC 型杀菌剂(90~170 mg.L－1)的循环冷却水中的腐蚀行为,分析了杀菌剂对其腐蚀行为的影响.结果表明：随着杀菌剂含量的增加,10钢在硫酸盐还原菌(SRB)、铁氧化菌(IOB)和腐蚀性阴离子的共同作用下,其腐蚀倾向和腐蚀速率均先降后升,在杀菌剂含量为130 mg.L－1时最小,且都小于没有加入杀菌剂时的；10钢的基体表面呈现全面腐蚀,没有活化-钝化转变区,腐蚀产物主要为铁的氧化物及微量的硫化物；SS317NC 型杀菌剂能够有效提高10钢的耐腐蚀性能.
The corrosion behavior of 10 steel in simulated circulating cooling water containing different contents of SS31 7NC bactericide (90 - 1 70 mg.L-1 )was studied by polarization curve test,scanning electron microscope,energy spectrum analysis and weight loss method,and the effects of SS31 7NC bactericide contents on the corrosion behavior were analyzed.The results show that under the combined action of sulfate-reducing bacteria (SRB),iron oxidizing bacteria (IOB)and corrosive anions,with the increase of SS31 7NC bactericide content the corrosion tendency and corrosion rate first decreased then increased,and achieved the minimum value when the bactericide content was 130 mg.L-1 .The corrosion tendency and corrosion rate of 10 steel in simulated solution containing SS31 7NC bactericide were less than in those without bactericide.General corrosion was observed on the surface of 10 steel and there was no activation-passive transition zone.The corrosion products were composed mainly of iron oxides and few sulphides.SS31 7NC bactericide can effectively improve the corrosion resistance of 10 steel.
参考文献
| [1] | 杨德均;沈卓身.金属腐蚀学[M].北京:冶金工业出版社,1999:237-240. |
| [2] | 段杨萍,胡跃华,段青兵,余立坤.过氧乙酸用于循环冷却水系统杀菌的试验研究[J].化工进展,2005(06):676-681. |
| [3] | 应一梅,周瑞云,杨崇豪,苏喆.循环冷却水输水管壁生物膜生长发育及微生物腐蚀问题研究[J].给水排水,2008(06):117-121. |
| [4] | 陈娥,郝金梅.循环冷却水中微生物种类和控制方法探讨[J].包钢科技,2006(04):43-45. |
| [5] | 胥聪敏,张耀亨,程光旭,朱文胜.炼油厂冷却水系统硫酸盐还原菌对316L不锈钢点腐蚀的研究[J].中国腐蚀与防护学报,2007(01):48-53. |
| [6] | 郎序菲,邱丽娜,弓爱君,马雪.微生物腐蚀及防腐技术的研究现状[J].全面腐蚀控制,2009(10):20-24. |
| [7] | 王华 .硫酸盐还原菌对几种金属材料的腐蚀机理研究[D].大连:大连理工大学,2010. |
| [8] | T. R. Bott .Techniques for reducing the amount of biocide necessary to counteract the effects of biofilm growth in cooling water systems[J].Applied thermal engineering: Design, processes, equipment, economics,1998(11):1059-1066. |
| [9] | 胥聪敏,张耀亨,程光旭,朱文胜.316L不锈钢在硫酸盐还原菌与铁氧化菌溶液中的腐蚀及电化学行为[J].中国化学工程学报（英文版）,2006(06):829-834. |
| [10] | RAO T S;SAIRAM T N;VISWANATHAN B et al.Carbon steel corrosion by iron oxidising and sulphate reducing bacteria in a freshwater cooling system[J].Corrosion Science,2000,42(8):1417-1431. |
| [11] | 胥聪敏,张耀亨,程光旭,朱文.316L不锈钢在硫酸盐还原菌和铁氧化菌共同作用下的腐蚀行为[J].材料热处理学报,2006(05):64-69. |
| [12] | BOTT T R;TAYLOR R J .The effects of velocity on biocide efficacy on biofilm removal in flowing systems[J].AIChE Symposium Series,1997,93:322-326. |
| [13] | AREHMOUCH L;GHILLEBAERT F;CHAILLOU C et al.Lethal effect of M exel432, an antifouling agent, on Embryolarval development of common carp(Cyprinus carpioL.)[J].Ecoto-xicology and Environmental Safety,1999,42(2):110-118. |
| [14] | 刘蕊,葛红花,龚晓明,孟新静,赵玉增.冷却水中杀菌剂次氯酸钠、异噻唑啉酮对不锈钢的侵蚀性比较[J].材料保护,2011(01):60-61,74. |
| [15] | 段东霞,刘光洲,王军,黄国胜.杀菌剂对混合型腐蚀微生物的杀灭效果研究[J].腐蚀与防护,2006(02):63-65. |
| [16] | 姜晨竞 .复配杀生剂的研制及其在循环冷却水系统的应用研究[D].浙江大学,2010. |
| [17] | 杨东平;胥聪敏;李辉辉 等.SS411NS 型杀菌剂对 Q235 钢在循环冷却水中腐蚀行为的影响[J].机械工程材料,2014,38(8):24-27. |
| [18] | 冯佃臣,宋义全,李涛,李晓刚.X70管线钢在内蒙古土壤中的腐蚀研究[J].腐蚀科学与防护技术,2011(01):78-80. |
| [19] | 董美,吴明.X80管线钢在模拟液中的电化学行为[J].石油化工高等学校学报,2009(02):66-69. |
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