English

应用科学学报 ›› 1996, Vol. 14 ›› Issue (3): 353-357.

• 论文 • 上一篇    下一篇

不锈钢上草绿色钼酸盐转化膜组成的研究

韩克平1, 方景礼1, 刘琴2   

  1. 1. 南京大学, 应用化学研究所配位化学国家重点实验室;
    2. 南京经济学院
  • 收稿日期:1994-09-21 修回日期:1995-05-09 出版日期:1996-09-30 发布日期:1996-09-30
  • 作者简介:韩克平:硕士生,南京大学应用化学研究所,南京 210093

STUDIES OF THE GRASS-GREEN MOLYBDATE CONVERSION FILM ON STAINLESS STEEL

HAN KEPING1, FANG JINGLI1, LIU QIN2   

  1. 1. Applied Chemistry Institute, State Key Laboratory Coordination Chemistry, Nanjing University;
    2. Nanjng Economics College
  • Received:1994-09-21 Revised:1995-05-09 Online:1996-09-30 Published:1996-09-30

PDF

54

被引次数

3

摘要： 用阴极电沉积法从钼酸盐溶液中获得了草绿色的不锈钢转化膜.该膜具有良好的热稳定性.XPS和AES分析表明,膜厚约为173nm.膜的表面钼以Mo (VI)存在,而在膜内则以Mo (VI)和Mo (IV)共存.从AES深度剥蚀曲线的组成恒定区求得膜的组成为:O52.8%,Mo30.4%,P12.5%和Fe4.3%.循环伏安的氧化峰也证明膜内存在Mo (IV).

关键词: 钼酸盐, 不锈钢, AES, 循环伏安, XPS, 彩色膜

Abstract: A grass-green conversion film was formed on stainless steel with the cathodic electcodeposition method from molybdate solution. This film displayed good thermostability. The results of XPS and AES analysis showed that the thickness of the film was 173nm and Mo existed as Mo(VI) on the surface of the film, but as Mo(VI) and Mo(IV) in the niternal layer of the film. The relative atomic percent contents (A.C.%) of the film obtained from the elemental composition constant region of the profile curved by AES were O 52.8%, Mo 30.4%,P 12.5% and Fe 4.3%respectively. The cyclevoltammetric oxidation peak also showed that the Mo (IV) existed in the internal layer of the film.

Key words: molybdate, AES, cyclevoltammetry, colourring film, stainless steel, XPS