中文摘要：

考察了AISI E52100钢在1-乙基-3-甲基咪唑四氟硼酸盐（[emim]BF4）离子液体中的腐蚀行为。采用电化学方法（开路电位、电化学阻抗谱（EIS）、动电位极化曲线）考察了E52100钢在[emim]BF4离子液体中耐腐蚀的能力。腐蚀后样品表面形貌和产物的组成使用表面分析技术（扫描电镜、能谱仪和X射线衍射仪）进行观察和分析。研究结果表明：离子液体[emim]BF4对E52100钢有腐蚀性,且氧气存在、温度升高和含水率的增大都会加速E52100钢的腐蚀,含水量对腐蚀的影响最为显著;腐蚀产物以铁的氟化物和氧化物为主。

英文摘要：

The corrosion of AISI E52100 steel in 1-ethyb3-methylimidazolium tetrafluoroborate （[emim]BF4） ionic liquid at different conditions were studied. Electrochemical tests （open-circuit potential, electrochemical impedance spectroscopy and potentiodynamic polarization curves） were performed to characterize the corrosion resistance of the steel samples in [emim]BF4 ionic liquid. Their morphology and chemical composition after corrosion were investigated using SEM coupled with EDX mieroanalysis and X-ray diffraction. Results showed that E52100 steel could be corroded in Eemim]BF4, and the presence of oxygen, the increasing of temperature and water content could accelerate the corrosion. The water content had the most significant influence. The main corrosion products were iron fluoride and oxide.