物理化学学报 >> 1995, Vol. 11 >> Issue (06): 521-525.doi: 10.3866/PKU.WHXB19950609

研究论文 上一篇    下一篇

非晶Fe40Ni40P14B6合金阳极钝化膜的电子能谱研究

陆尔东,季明荣,麻茂生,刘先明,徐彭寿   

  1. 中国科技大学国家同步辐射实验室|结构开放研究实验室|合肥 230026
  • 收稿日期:1994-03-31 修回日期:1994-10-22 发布日期:1995-06-15
  • 通讯作者: 陆尔东

XPS and AES Depth Profiling Analysis of Passivity on Fe40Ni40P14B6 Amorphous Alloy

Lu Er-Dong,Ji Ming-Rong,Ma Mao-Sheng,Liu Xian-Ming,Xu Peng-Shou   

  1. National Synchrotron Radiation Laboratory,Structure Research Lab,University of Science Technology of China,Hefei 230026
  • Received:1994-03-31 Revised:1994-10-22 Published:1995-06-15
  • Contact: Lu Er-Dong

摘要:

应用表面分析技术XPS和AES(包括深度分布)分析了非晶Fe40Ni40P14B6合金在H3BO3-Na2B4O7(pH=9.20)缓冲溶液中不同钝化势或不同钝化时间形成的阳极钝化膜的元素化学状态、结构和化学组成,探讨了加入Ⅲ、Ⅴ族B、P对非晶FeNi基合金钝化成膜的影响,并给出了阳极钝性成膜的一种机制.

关键词: 非晶FeNi基合金, 钝化, 电子能谱, 抗腐蚀性

Abstract:

 Anodic passive films formed on Fe40Ni40P14B6 amorphous alloy in H3BO3-Na2B4O7(pH=9.20) buffer solution at different potentials or different time have been investigated by XPS and AES (including depth profiling). The thicknesses of the films were closely related to the polarization potentials and passivation time. The passive films are multilayer structure, the outmost layer FeOOH, Ni(OH)2[NiOOH] and a notable phosphate and borate, the inner layer FeOx, NiOx, POx and BOx, then the substrate. The films/substrate interface enriched Ni and P have hinder role from further oxidiation. The thicknesses of the films have been estimated by a relative method, and of passive films formation mechanism is given by explaining the growth of the anodic passive films.

Key words: Amorphous FeNi base alloy, Passivation, Electron spectroscopy, Corrosion resistance