利用电化学方法和表面分析测试技术,研究了有机膦酸醇酯 类缓蚀剂(YKI-05)对于907A钢在天然海水中的缓蚀行为.实验表明,在静态海水中,浓度为300 mg/L的YKI－05缓蚀剂能在907A钢表面形成稳定的缓蚀膜层,是一负催化阴极型缓蚀剂,在实 验周期内其对907A钢的缓蚀效率较高；并用原子力显微镜(AFM)和俄歇电子能谱(AES)对该缓 蚀膜的表面形貌和成分进行分析.
The inhibition behavior of polyhydric alcohol phosp hate ester (PAPE) corrosion inhibitor to steel surface have been studied by pot e ntiodynamic in natural seawater.The results indicated that the inhibition film l ayer was formed stably on the steel surface.The inhibitor is a negative catalyti c and cathodic inhibitor and it owns good inhibition efficiency at the content o f 300ppm.The surface morphology and composition profile of the inhibitor film we re also investigated by Auger electron spectrometry (AES)、atomic force microsco pe (AFM).The results show that the thickness of the inhibitor film increased wit h the time extent,and the chemical composition of the film includes P,Fe,O,C,Ca, Mg.So the major structures of the film are the complex compounds which constitut ed by poly-phosphate and Ca2+,Mg2+,Fe2+ et al ion.
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