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材料工程  2015, Vol. 43 Issue (6): 71-78    DOI: 10.11868/j.issn.1001-4381.2015.06.012
  测试与表征 本期目录 | 过刊浏览 | 高级检索 |
SRB对X100钢在鹰潭土壤模拟溶液中腐蚀行为的影响
胥聪敏, 杨东平, 张灵芝, 史立强, 李辉辉
西安石油大学 材料科学与工程学院 材料加工工程 重点实验室, 西安 710065
Effect of SRB on Corrosion Behavior of X100 Steel in Simulated Solution of Yingtan Soil
XU Cong-min, YANG Dong-ping, ZHANG Ling-zhi, SHI Li-qiang, LI Hui-hui
Key Laboratory of Materials Processing Engineering, School of Materials Science and Engineering, Xi'an Shiyou University, Xi'an 710065, China
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摘要 采用失重法、线性极化曲线和阻抗谱电化学技术,结合扫描电子显微镜和能谱分析仪研究了X100钢在有/无SRB的鹰潭土壤模拟溶液中的腐蚀行为。结果表明:X100钢在无菌与有菌时的腐蚀速率随时间延长均为:减小→增大→减小, 腐蚀速率有菌时小于无菌,SRB的存在减缓了X100钢的腐蚀;腐蚀速率的控制主要由腐蚀产物膜的均匀性与致密性决定,无菌介质中,腐蚀产物膜不致密、不均匀,保护性较差,在有菌介质中,钢表面形成致密均匀的结合膜,致密的膜对传质有一定的阻碍作用,从而减轻了X100钢的腐蚀;无菌时腐蚀产物主要为Fe2O3,Fe3O4,α-FeO(OH),有菌时腐蚀产物为Fe3O4,FeS。
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胥聪敏
杨东平
张灵芝
史立强
李辉辉
关键词 鹰潭土壤X100钢SRB腐蚀行为    
Abstract:The corrosion behavior of X100 steel was studied in simulated solution of Yingtan soil with and without sulfate-reducing bacteria (SRB) by means of mass-loss measurement, linear polarization curves and electrochemical impedance spectroscopy (EIS) techniques,combined with scanning electron microscopy(SEM) and spectroscopy analyzer(EDS). The results show that the corrosion rate with and without SRB with time is:decrease→increase→decrease,the corrosion rate with SRB is less than without SRB,SRB inhibit the corrosion of X100 steel;Corrosion rate is controlled by uniformity and compactness of corrosion product films, Corrosion product film is loose,uneven and less protective in the solution without SRB.In the solution with SRB,however, a compact and homogeneous bonding film is formed on the steel surface, which could suppress the mass transfer so that to mitigate the steel corrosion.Corrosion products are Fe2O3,Fe3O4 and α-FeO(OH) in the solution without SRB,while corrosion products are Fe3O4 and FeS in the solution with SRB.
Key wordsYingtan soil    X100 steel    SRB    corrosion behavior
收稿日期: 2014-09-10     
1:  TG172.7  
基金资助:陕西省教育厅专项科研计划项目(2013JK0895);陕西省重点学科专项资金资助项目(ys37020203)
通讯作者: 胥聪敏(1977—),女,博士,副教授,主要从事材料腐蚀及防护方面的研究,联系地址:陕西省西安市雁塔区电子二路18号西安石油大学材料科学与工程学院(710065),E-mail:cmxu@xsyu.edu.cn     E-mail: cmxu@xsyu.edu.cn
引用本文:   
胥聪敏, 杨东平, 张灵芝, 史立强, 李辉辉. SRB对X100钢在鹰潭土壤模拟溶液中腐蚀行为的影响[J]. 材料工程, 2015, 43(6): 71-78.
XU Cong-min, YANG Dong-ping, ZHANG Ling-zhi, SHI Li-qiang, LI Hui-hui. Effect of SRB on Corrosion Behavior of X100 Steel in Simulated Solution of Yingtan Soil. Journal of Materials Engineering, 2015, 43(6): 71-78.
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http://jme.biam.ac.cn/jme/CN/10.11868/j.issn.1001-4381.2015.06.012      或      http://jme.biam.ac.cn/jme/CN/Y2015/V43/I6/71
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