摘要
在载波钝化膜研究中,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。
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 McO_4^(2-) 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 Fe^(3+)/Fe^(2+) and the adsorption of molybdenum into film.
出处
《应用化学》
CAS
CSCD
北大核心
1992年第4期114-116,共3页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金
关键词
不锈钢
钝化
过钝化
钼酸盐
后处理
304 stainless steel, passivation, transpassivation, molybdate, post treatment
