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Journal of Electrochemistry ›› 2013, Vol. 19 ›› Issue (6): 507-511.doi: 10.13208/j.electrochem.130217

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Localized Corrosion Behavior of Sensitized 304 Stainless Steel by Scanning Reference Electrode Technique

YE Chen-qing1,2, HU Rong-gang1,3, HOU Rui-qing1, WANG Xiao-ping1, DU Rong-gui1, LIN Chang-jian1*   

  1. 1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China; 2. Department of Chemistry and Environmental Science, Ningde Normal University, Ningde 352100, Fujian, China; 3. College of Chemistry and Materials Engineering, Guiyang University, Guiyang 550005, Guizhou, China
  • Received:2013-01-31 Revised:2013-03-28 Online:2013-12-28 Published:2013-04-05
  • Contact: LIN Chang-jian E-mail:cjlin@xmu.edu.cn

Abstract: Based on a home-built setup of scanning reference electrode technique, and combined with conventional electrochemical measurements, the localized corrosion behavior of sensitized 304 stainless steel (304ss) had been investigated in this work. The results showed that, the non-sensitized 304ss or 304ss sensitized at 550 oC was susceptible to pitting; while 304ss sensitized at 650 oC or 750 oC suffered severe intergranular corrosion in 10% FeCl3 solution.

Key words: 304 stainless steel, sensitization, SRET, localized corrosion, intergranular corrosion

CLC Number: