1985
DOI: 10.1149/1.2113959
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Analysis of Passive Films on Stainless Steel by Cyclic Voltammetry and Auger Spectroscopy

Abstract: Anodic passivation of Type 316L stainless steel in a borate‐boric acid buffer solution was studied using cyclic voltammetry and Auger spectroscopy. Based on a comparison with the results obtained on the metals (iron, chromium, and nickel), the reduction peaks appearing in the voltammograms for the steel were attributed to the reductive dissolution of a ferric oxide and to valence transitions associated with chromium and nickel in the oxide. It is shown that cyclic voltammetry in the buffer solution provides a … Show more

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Cited by 117 publications
(65 citation statements)
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“…1.4970 (see Table 1). These elements account for the corrosion resistance of stainless steels 15,[18][19][20] . On the other hand, the higher nickel content in the composition of DIN W. Nr.1.4970 must have been related to its improved electrochemical behaviour.…”
Section: Resultsmentioning
confidence: 99%
“…1.4970 (see Table 1). These elements account for the corrosion resistance of stainless steels 15,[18][19][20] . On the other hand, the higher nickel content in the composition of DIN W. Nr.1.4970 must have been related to its improved electrochemical behaviour.…”
Section: Resultsmentioning
confidence: 99%
“…It can also decrease the resistivity of the film with the composition and structure of oxides changed [13]. Therefore, it is reasonable to attribute the decrease of R ox at the first stage of polarization at −0.80 V to the reduction of the passive film [34][35][36][37].…”
Section: Discussionmentioning
confidence: 99%
“…Then, the variation of current density shall be related to the effect of calcareous deposits and the variance of oxide film formed on the stainless steel with polarization at different potentials, which will be discussed later. It is also worth noting that there exists a current density increase at the initial stage for −0.65 V and −0.80 V, which may be attributed to the reduction of passive film on 304 SS [33][34][35][36][37]. The prompt decrease of current density initially with polarization at −0.50 V can be attributed to the consumption of oxygen if the passive film is not reduced at this potential [9].…”
Section: Sem and Xrd Analysismentioning
confidence: 95%
“…Several authors [28,[30][31][32], proposed that the reduction pathway is influenced by the surface composition of the electrode and oxides have an important role to play in the oxygen reduction kinetics. A homogeneous mixture of chromium oxide and hydroxide constitutes a barrier to oxygen reduction, whereas no diffusion barrier is observed when the surface is only partially covered with a non-reducible chromium oxide [33]. Therefore, any chromium depleted areas formed in the sensitised alloy can lead to the formation of a more conductive passive film that promotes higher oxygen reduction on the electrode surface.…”
Section: Secm Testsmentioning
confidence: 99%