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SO42-对含Cl-溶液中316L奥氏体不锈钢钝化行为及点蚀行为的影响

唐娴 张雷 王竹 张子如 薛俊鹏 路民旭

唐娴, 张雷, 王竹, 张子如, 薛俊鹏, 路民旭. SO42-对含Cl-溶液中316L奥氏体不锈钢钝化行为及点蚀行为的影响[J]. 工程科学学报, 2018, 40(3): 366-372. doi: 10.13374/j.issn2095-9389.2018.03.013
引用本文: 唐娴, 张雷, 王竹, 张子如, 薛俊鹏, 路民旭. SO42-对含Cl-溶液中316L奥氏体不锈钢钝化行为及点蚀行为的影响[J]. 工程科学学报, 2018, 40(3): 366-372. doi: 10.13374/j.issn2095-9389.2018.03.013
TANG Xian, ZHANG Lei, WANG Zhu, ZHANG Zi-ru, XUE Jun-peng, LU Min-xu. Effect of SO42- on the passive and pitting behavior of 316L austenite stainless steel in a Cl--containing solution[J]. Chinese Journal of Engineering, 2018, 40(3): 366-372. doi: 10.13374/j.issn2095-9389.2018.03.013
Citation: TANG Xian, ZHANG Lei, WANG Zhu, ZHANG Zi-ru, XUE Jun-peng, LU Min-xu. Effect of SO42- on the passive and pitting behavior of 316L austenite stainless steel in a Cl--containing solution[J]. Chinese Journal of Engineering, 2018, 40(3): 366-372. doi: 10.13374/j.issn2095-9389.2018.03.013

SO42-对含Cl-溶液中316L奥氏体不锈钢钝化行为及点蚀行为的影响

doi: 10.13374/j.issn2095-9389.2018.03.013
基金项目: 

中央高校基本科研业务费专项资金资助项目(2302017FRF-IC-17-004)

详细信息
  • 中图分类号: TG142.71

Effect of SO42- on the passive and pitting behavior of 316L austenite stainless steel in a Cl--containing solution

  • 摘要: 利用动电位极化、电化学阻抗、恒电位极化以及恒电流极化等电化学测试手段,并结合扫描电镜进行点蚀形态观察,探究了含Cl-溶液中SO42-浓度对316L奥氏体不锈钢的钝化行为及点蚀行为的影响.结果表明,含Cl-溶液中SO42-的加入能够使316L不锈钢钝化区变宽,使点蚀电位变正,维钝电流密度降低,进而提高316L的耐点蚀能力.但是在点蚀发生后,随着SO42-浓度的升高,点蚀内部和边缘形态表现出更为复杂的趋势,蚀坑的周长面积比明显增大.
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  • 收稿日期:  2017-07-07

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