Pitting Kinetics of 304 Stainless Steel Using ESPI Detection Technique
Acta Metallurgica Sinica (english Letters)(2015)
摘要
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 + B 1 t + B 2 t 2 + B 3 t 3 .
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关键词
Stainless steel, Corrosion, Electronic speckle pattern interferometry (ESPI), Pitting
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