| 王海燕,谢飞,吴明,任帅.化学通报,2016,79(4):332-337. |
| 磁场对316L不锈钢微生物腐蚀行为的影响 |
| Effect of Magnetic Field on Microbiologically-influenced#$NLCorrosion Behavior of 316L Stainless Steel |
| 投稿时间：2015-07-21 修订日期：2015-09-29 |
| DOI： |
| 中文关键词: 磁场 循环极化 硫酸盐还原菌 点蚀 |
| 英文关键词:Magnetic field, Cycle polarization, Microbiologically-influenced corrosion, Pitting corrosion |
| 基金项目:国家自然科学基金(50771053); 辽宁省教育厅重点实验室基础研究项目(LZ2014027) |
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| 中文摘要: |
| 采用循环极化,微生物分析法,扫描电镜及表面能谱分析等方法,研究了磁场对316L不锈钢在含硫酸盐还原菌(SRB)的土壤模拟溶液中的腐蚀行为。研究发现：磁场可以抑制SRB的生长；无磁场时316L不锈钢表面膜层以局部堆积为主,有磁场时,局部堆积明显减小,膜层均匀致密的排列于基体表面；有、无磁场时316L不锈钢表面均发生钝化膜破裂型点蚀,无磁场时的点蚀电位低于有磁场时。在相同的浸泡时间,无磁场时循环极化滞后环面积明显比有磁时的大,说明磁场可以有效的抑制316L不锈钢点蚀的形成与发展,降低316L不锈钢的点蚀诱发能力。 |
| 英文摘要: |
| The common corrosion behavior of 316L stainless steel is pitting corrosion. In this work, the electrochemical cycle polarization test, microbiological analysis, surface morphology and energy spectrum analysis have been used to investigate the influence of magnetic field on the corrosion of 316L stainless steel in soil simulated solution containing SRB The result showed that magnetic field can inhibit the growth of SRB; The surface film of 316L stainless steel presented local accumulation without magnetic field, when with magnetic field the surface film uniformly arranged on the surface, the local accumulation areas decreased significantly; The pitting corrosion behaviors of 316L stainless steel in soil solution are both film rupture with and without magnetic field, the pitting potential without magnetic field is lower than that with magnetic field. Under the same immersion time, the area of lag ring with magnetic field is smaller than that without magnetic field; The magnetic field could effectively inhibit the formation and development of the pitting corrosion of 316L stainless steel, reduce the ability of induce pitting. |
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