材料工程Issue(1)：42-50,9.
23Co14Ni12Cr3Mo超高强钢在模拟海水环境中的腐蚀行为
Corrosion Behavior of Ultra-high Strength Steel 23Co14Ni12Cr3Mo in Simulated Seawater Environment
摘要
Abstract
The corrosion behavior of ultra-high strength steel 23Co14Ni12Cr3Mo was investigated by three accelerated corrosion methods, alternating immersion corrosion, neutral salt spray and full immersion tests, and electrochemical impedance spectroscopy in simulated seawater environment. The morphology of corrosion products was observed by SEM and the composition was analyzed by X-ray diffraction. The results show that the corrosion product layer is composed of outer rust layer γ-FeOOH and inner rust layer α-FeOOH. The corrosion process begins with pit corrosion, then the corrosion area expands and the uniform corrosion forms with the corrosion time. The corrosion of extend is worst alternating immersion corrosion test, simulated alternation of wetting and drying seawater environment.关键词
超高强钢/模拟海水环境/加速腐蚀实验/交流阻抗谱Key words
ultra-high strength steel/ simulated seawater environment/ accelerated corrosion method/ electrochemical impedance spectroscopy分类
矿业与冶金引用本文复制引用
于美,董宇,王瑞阳,祁晋豫,刘建华,李松梅..23Co14Ni12Cr3Mo超高强钢在模拟海水环境中的腐蚀行为[J].材料工程,2012,(1):42-50,9.基金项目
国家自然科学基金资助项目(51001007) （51001007）
