摘要
采用浸泡腐蚀试验、锈层XRD分析、环境扫描显微镜（SEM）和电化学分析等方法,研究了不同Cu含量的油轮耐蚀钢在模拟原油船货油舱环境下的腐蚀规律和机理。结果表明：Cu含量增加,油轮钢耐腐蚀性能增加;短期浸泡腐蚀过程中,铜元素的加入可显著提高腐蚀电位、降低腐蚀电流密度;长周期浸泡腐蚀过程中,铜元素改善了产物膜结构和致密度,提高了与基体的结合度,从而有效抑制了基体的进一步腐蚀,提高了低合金钢长周期浸泡的耐蚀性能。
The corrosion regularity and principle of the anti-corrosion oil tanker steel with different copper content under the simulated circumstance inside the cabin of the oil tanker by various methods,such as immersion corrosion test,rusty scale analysis by XRD,SEM and electrochemistry analysis. The results showed that the corrosion resistance was improved along with the increase of copper content. The copper significantly enhanced the corrosion potential and lowered the corrosion current density in the short term immersion corrosion test. The copper optimized the membrane structure and density,and enhanced the combination degree with the base body,thus avoiding the further corrosion of the base body and enhance the corrosion resisting property of the low alloy steel during long term immersion test.
作者
李旭
Li Xu(Science ＆ Technology and Quality Departmen)
出处
《南钢科技与管理》
2018年第1期26-30,共5页
NISCO Technology and Management
关键词
CU
油轮钢
腐蚀
电化学
Cu, Oil Tanker Steel, Corrosion, Electrochemistry
