Study of Passive Films Formed on AISI 304 Stainless Steel by Impedance Measurements and Photoelectrochemistry

1990 ◽  
Vol 137 (1) ◽  
pp. 82-87 ◽  
Author(s):  
A. M. P. Simões ◽  
M. G. S. Ferreira ◽  
B. Rondot ◽  
M. da Cunha Belo
Keyword(s):  
Stainless Steel ◽  
Passive Films ◽  
304 Stainless Steel ◽  
Aisi 304 Stainless Steel ◽  
Impedance Measurements ◽  
Aisi 304

scholarly journals An Electrochemical Impedance Spectroscopic Study of the Passive State on AISI 304 Stainless Steel

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
A. Fattah-alhosseini ◽  
S. Taheri Shoja ◽  
B. Heydari Zebardast ◽  
P. Mohamadian Samim
Keyword(s):  
Stainless Steel ◽  
Acid Solution ◽  
Polarization Resistance ◽  
Electrochemical Impedance ◽  
Transport Processes ◽  
Passive Films ◽  
304 Stainless Steel ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Interfacial Impedance

The passivity and protective nature of the passive films are essentially related to ionic and electronic transport processes, which are controlled by the optical and electronic properties of passive films. In this study, the electrochemical behavior of passive films anodically formed on AISI 304 stainless steel in sulfuric acid solution has been examined using electrochemical impedance spectroscopy. AISI 304 in sulphuric acid solution is characterized by high interfacial impedance, thereby illustrating its high corrosion resistance. Results showed that the interfacial impedance and the polarization resistance () initially increase with applied potential, within the low potential passive. However, at a sufficiently high potential passive ( V), the interfacial impedance and the polarization resistance decrease with increasing potential. An electrical equivalent circuit based on the impedance analysis, which describes the behavior of the passive film on stainless steel more satisfactorily than the proposed models, is presented.

Chemical Composition of Passive Films on AISI 304 Stainless Steel

1994 ◽  
Vol 141 (12) ◽  
pp. 3347-3356 ◽  
Author(s):  
G. Lorang ◽  
M. Da Cunha Belo ◽  
A. M. P. Simões ◽  
M. G. S. Ferreira
Keyword(s):  
Stainless Steel ◽  
Chemical Composition ◽  
Passive Films ◽  
304 Stainless Steel ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304

EIS study on passive films of AISI 304 stainless steel in oxygenous sulfuric acid solution

2009 ◽  
Vol 41 (6) ◽  
pp. 531-539 ◽  
Author(s):  
Weiya Lai ◽  
Wenzhen Zhao ◽  
Feng Wang ◽  
Chengzhu Qi ◽  
Jun Zhang
Keyword(s):  
Stainless Steel ◽  
Sulfuric Acid ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Passive Films ◽  
304 Stainless Steel ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304
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