Ellipsometric and electrochemical studies of the surface films on AISI 304 SS in acidic KCNS solution

被引：0
|
作者：
Bose, A [1 ]
Totlani, MK [1 ]
机构：
[1] Bhabha Atom Res Ctr, Surface Engn Sect, Mat Proc Div, Bombay 400085, Maharashtra, India
来源：
INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES | 1999年 / 6卷 / 04期
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Surface films formed on solution annealed and sensitised AISI 304 SS in 0.5 M H2SO4 solution in the absence and presence of 0.01 M KCNS have been evaluated for their refractive index and thickness using ellipsometry. The results are correlated to the protectiveness of the surface films formed in this environment, as determined by electrochemical potentio-kinectic reactivation (EPR) tests. It has been observed that surface films (189-363 Angstrom thick) formed on the sensitised AISI 304 SS in the acidic solution without and with KCNS are non-protective, whereas those formed on the solution annealed SS (123-134 Angstrom) in the same environment are protective in nature.
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页码：213 / 218
页数：6
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