Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
ISSN-L : 0917-0480
On the PSD of Passive Current Noise of SUS 304 Stainless Steel and Its Monte Carlo Simulation
Kazuhiro MiyaKoji Tachibana
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1993 Volume 42 Issue 12 Pages 770-776

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Abstract

The passive current noise of SUS 304 observed in H2SO4 aq and in ethanol solutions with various H2O contents was simulated together with the PSD∼frequency relation by the Monte Carlo method. To simulate the PSDs, two probability distribution functions determined from statistical analysis of real current noise data were used. One concerns the current change per unit period and the other the time interval in which the current noise continues to evolve either in anodic or catholic direction. The PSD level and its time change were found to be simulated by mixing each parameter in both distribution functions. Comparing the experimental data with the simulated results, the PSD level and its time change were interpreted in terms of the nature of two kinds of bound water in the passive film.

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© Japan Society of Corrosion Engineering
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