Pitting Kinetics of 304 Stainless Steel Using ESPI Detection Technique
Abstract 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.
Acta Metallurgica Sinica (English Letters)