Pitting Kinetics of 304 Stainless Steel Using ESPI Detection Technique

The electronic speckle pattern interferometer was used to in situ monitor the pitting corrosion of 304 stainless steel at anodic polarization. The pitting current and pitting current density of a single pit were obtained. The pit growth was controlled by the corrosion products diffusion. The pit mor...

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Veröffentlicht in:	Acta metallurgica sinica : English letters 2015-04, Vol.28 (4), p.430-437
Hauptverfasser:	Tian, Wen-Ming, Ai, Ying-Jun, Li, Song-Mei, Du, Nan, Ye, Chao
Format:	Artikel
Sprache:	eng
Schlagworte:	304不锈钢 Anodic polarization Austenitic stainless steels Cameras Characterization and Evaluation of Materials Chemistry and Materials Science Corrosion Corrosion and Coatings Corrosion products Electrodes Electrolytes Electronics ESPI Interferometers Lasers Materials Science Mathematical morphology Metallic Materials Monitors Nanotechnology Organometallic Chemistry Pitting (corrosion) Scanning electron microscopy Speckle patterns Spectroscopy/Spectrometry Stainless steel Stainless steels Test systems Tribology 动力学形态学观察扫描电子显微镜检测技术生长时间电流密度
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Zusammenfassung:	The electronic speckle pattern interferometer was used to in situ monitor the pitting corrosion of 304 stainless steel at anodic polarization. The pitting current and pitting current density of a single pit were obtained. The pit growth was controlled by the corrosion products diffusion. The pit morphology was observed by a scanning electron microscope. The results showed that the pit was dish shaped, and the geometric parameters and pit growth time conformed to the function of Y = A ＋ B1t ＋ B2t2 ＋ B3t3.
ISSN:	1006-7191 2194-1289
DOI:	10.1007/s40195-015-0213-0