中华医学超声杂志

应用化学 ›› 1992, Vol. 0 ›› Issue (4): 114-116.

• 研究简报 • 上一篇    下一篇

不锈钢过钝化和后处理研究

宋光铃, 曹楚南, 夏邦杰, 林海潮   

  1. 中国科学院金属腐蚀与防护研究所, 腐蚀科学开放研究实验室, 沈阳 110015
  • 收稿日期:1992-01-06 修回日期:1992-03-09 出版日期:1992-08-10 发布日期:1992-08-10
  • 基金资助:
    国家自然科学基金

ON THE TRANSPASSIVATION AND POSTTREATMENT OF STAINLESS STEEL

Song Guangling, Cao Chunan, Xia Bangjie, Lin Haichao   

  1. Institute of Corrosion and Protection of Metals, Academia Sinica, Shenyang 110015
  • Received:1992-01-06 Revised:1992-03-09 Published:1992-08-10 Online:1992-08-10

PDF

480

被引次数

11 | 1

摘要： 在载波钝化膜研究中[1,2],我们注意到能使钝化膜稳定性显著提高的载波幅值正半周都进入到不锈钢过钝化区中,因而推断在过钝化区生成的过钝化膜在低电位区自然状态下的稳定性也可能会有所提高。本文报道对过钝化膜的进一步研究。

关键词: 不锈钢, 钝化, 过钝化, 钼酸盐, 后处理

Abstract: The activation time of transpassive film formed on 304 stainless steel in the transpassivation region is almost 2 magnitude of order higher than that of passive film formed in passivation region and its breakdown potential is strikingly improved if post-treatment is conducted in a McO42- containing solution.It is believed that the enhancement of stability of surface film by transpassivation and post-treatment is ascribed to increase of film thickness,higher ratio of Fe3+/Fe2+ and the adsorption of molybdenum into film.

Key words: 304 stainless steel, passivation, transpassivation, molybdate, post treatment

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