论文标题
FECO3腐蚀膜的溶解和机械分解的机械见解
Mechanistic insights of dissolution and mechanical breakdown of FeCO3 corrosion films
论文作者
论文摘要
要了解在二氧化碳条件下X65 c钢的腐蚀膜的行为至关重要，这是确定腐蚀产物的形成和转化。这项工作介绍了通过分子技术与成像结合的pH和流动对腐蚀膜产生的化学变化和机械效应。在中性pH值下，铁岩，钢铁石和磁铁矿被鉴定为腐蚀产物，在低pH值下通过1m/s盐水溶解和机械损坏，晶体尺寸还原约80％。相反，在pH 7和1m/s时，流量有助于从膜中去除整个晶体。
To understand the behavior of corrosion films on X65 C-steel under CO2 conditions is paramount to identify the formation and transformations of corrosion products. This work presents the chemical changes and mechanical effects produced by pH and flow on corrosion films through the combination of molecular techniques with imaging. Siderite, wustite and magnetite were identified as corrosion products at neutral pH, which dissolved and mechanical damaged at low pH by a 1m/s brine flow with a crystal size reduction of ~80%. In contrast, at pH 7 and 1m/s flow facilitated the removal of entire crystals from the film.
