腐蚀
卤水
材料科学
原电池
电极
电偶腐蚀
电化学
冶金
缓蚀剂
碳钢
化学
物理化学
有机化学
作者
Yongjun Tan,Young Fwu,Kriti Bhardwaj
标识
DOI:10.1016/j.corsci.2010.12.015
摘要
A new experimental method has been applied to evaluate under-deposit corrosion and its inhibition by means of an electrochemically integrated multi-electrode array, namely the wire beam electrode (WBE). Maps showing galvanic current and corrosion potential distributions were measured from a WBE surface that was partially covered by sand. Under-deposit corrosion did not occur during the exposure of the WBE to carbon dioxide saturated brine under ambient temperature. The introduction of corrosion inhibitor imidazoline and oxygen into the brine was found to significantly affect the patterns and rates of corrosion, leading to the initiation of under-deposit corrosion over the WBE.
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