In Situ Characterization of Pitting Corrosion of Stainless Steel by a Scanning Electrochemical Microscopy

C. F. Dong; H. Luo; K. Xiao; X. G. Li; Y. F. Cheng

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In Situ Characterization of Pitting Corrosion of Stainless Steel by a Scanning Electrochemical Microscopy

机译：扫描电化学显微镜对不锈钢点蚀的原位表征

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In this work, a scanning electrochemical microscopy (SECM) was used to characterize in situ the meta-stable and stable pitting processes occurring on a stainless steel in the chloride solution. It was found that metastable pitting would occur on the steel that was at corrosion potential and passive potential. The positive shift of potential would enhance the metastable pitting current. On application of a potential exceeding pitting potential, the pit became stabilized and maintained a continuous growth. The SECM is capable of detecting the microdissolution event and provides a "visual" observation of the pitting processes.

机译：在这项工作中，使用扫描电化学显微镜（SECM）来原位表征在氯化物溶液中不锈钢上发生的亚稳定和稳定的点蚀过程。发现在处于腐蚀电位和被动电位的钢上会发生亚稳态点蚀。电位的正向移动将增强亚稳点蚀电流。当施加超过蚀点电位的电位时，蚀点变得稳定并保持连续生长。 SECM能够检测微溶事件，并提供点蚀过程的“视觉”观察。

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《Journal of Materials Engineering and Performance》 |2012年第3期|共5页
作者
C. F. Dong; H. Luo; K. Xiao; X. G. Li; Y. F. Cheng;
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正文语种 eng
中图分类金属学与金属工艺;工程材料学;
关键词
Pitting corrosion; Scanning electrochemical microscopy; Stainless steel;

机译：点蚀;扫描电化学显微镜;不锈钢;

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In Situ Characterization of Pitting Corrosion of Stainless Steel by a Scanning Electrochemical Microscopy

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