不锈钢载波钝化参数对钝化膜层耐蚀性的影响  

EFFECT OF PARAMETERS OF ALTERNATING VOLTAGE PASSIVATION ON CORROSION RESISTANCE OF PASSIVE FILM ON STAINLESS STEEL

作　　者：颜立成[1] 张俊喜[2] 乔亦男[3] 张鉴清[3] 

机构地区：[1]杭州师范学院,杭州310036 [2]上海电力学院电化学研究室 [3]浙江大学化学系,杭州310027

出　　处：《腐蚀与防护》2005年第2期57-59,共3页Corrosion & Protection

摘　　要：运用电化学交流阻抗谱、原子力显微镜研究了在不同的载波钝化参数下形成的不锈钢钝化膜的耐蚀性,测定了极化电阻值Rp 和相应的钝化膜的表面形貌。结果表明:载波钝化条件参数对膜层的耐蚀性有较大的影响,各参数(频率、占空比、高电位、低电位)的变化使得电极表面钝化膜的形貌发生很大的变化,从而影响到膜层的耐蚀性。An investigation on the effect of parameters of alternating voltage passivation (A. V. passivation) on the corrosion resistance of the passive film formed on 304SS has been carried out by using electrochemical impedance spectroscopy (EIS) and atomic force microscopy (AFM). The polarization resistance R_p of stainless steel electrode passivated with different parameters of A. V. passivation was measured, and AFM images of passive film formed on the stainless steel under A. V. passivation were recorded. Results show that variations of the parameters of A. V. passivation can affect the corrosion resistance and morphology of the passive film.

关 键 词：不锈钢 载波钝化 工艺参数 耐蚀性能 

分 类 号：TG178[金属学及工艺—金属表面处理]