多晶Fe_(60)Ni_(40)合金阳极钝化膜的XPS研究  

XPS Investigation of Anodic Passive Films on Fe_(60)Ni_(40) Polycrystalline Alloy

作　　者：陆尔东[1] 徐彭寿[1] 季明荣[2] 麻茂生[2] 刘先明[2] 

机构地区：[1]中国科技大学国家同步辐射实验室 [2]中国科技大学结构开放研究实验室,合肥230026

出　　处：《物理化学学报》1995年第11期1031-1035,共5页Acta Physico-Chimica Sinica

摘　　要：Anodic passive filins formed on Fe60Ni40 in H3BO3-Na2B4O7 buffer solution (pH=9.20) and in H3PO4-Na2HPO4 buffer solution (pH=7.41) have been investigated by XPS. By analysis of the chemical states of elements, components and structure of films,we have probed into the mechanism of the formation of the anodic passive films. In the H3BO3-Na2B4O7 buffer solution (pH=9.20), the formation of passive film was controlled by adsorption of OH-, and the growth of the passive film was a function of passivation potential and time in passive range. The duplex structure, the Fe 、Ni/FeOx、NiO/FeOOH、 Ni(OH)2 was confirmed by detailed peak analysis and profiling. In H3PO4-Na2HPO4 buffer solution (pH= 7.41), the formation of passive film was controlled by competitive react, that is, cations of anodic dissolution reacted with anions such as PO and OH- et al in solution to form compacted deposit films of the phosphate phase.Anodic passive filins formed on Fe60Ni40 in H3BO3-Na2B4O7 buffer solution (pH=9.20) and in H3PO4-Na2HPO4 buffer solution (pH=7.41) have been investigated by XPS. By analysis of the chemical states of elements, components and structure of films,we have probed into the mechanism of the formation of the anodic passive films. In the H3BO3-Na2B4O7 buffer solution (pH=9.20), the formation of passive film was controlled by adsorption of OH-, and the growth of the passive film was a function of passivation potential and time in passive range. The duplex structure, the Fe 、Ni/FeOx、NiO/FeOOH、 Ni(OH)2 was confirmed by detailed peak analysis and profiling. In H3PO4-Na2HPO4 buffer solution (pH= 7.41), the formation of passive film was controlled by competitive react, that is, cations of anodic dissolution reacted with anions such as PO and OH- et al in solution to form compacted deposit films of the phosphate phase.

关 键 词：铁 镍 合金 钝化作用 光电子能谱 阳极钝化膜 

分 类 号：TQ153.6[化学工程—电化学工业] O657.3[理学—分析化学]