Synchrotron X-ray radiography studies of pitting corrosion of stainless steel: extraction of pit propagation parameters
作者： Majid Ghahari , Donal Krouse , Nicholas Laycock , Trevor Rayment , Cristiano Padovani
DOI: 10.1016/J.CORSCI.2015.06.023
关键词: Metallurgy 、 Chloride 、 Pitting corrosion 、 Current density 、 Synchrotron 、 Layer (electronics) 、 Materials science 、 Conductivity 、 Corrosion 、 Anode
摘要: Abstract In situ synchrotron X-ray radiography was used to observe the evolution of 2D pits growing at edge stainless steel foils in chloride solutions varying concentrations under current and potential control. A method developed for measuring local anodic density along perimeter from rate advance pit into metal. Pit depth tends increase with time kinetics consistent diffusion control (under a salt layer), whereas lateral development (on film-free surfaces) is influenced by solution conductivity. Perforated covers formed on their growth stability.
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