Modeling and Measurement of the Maximum Pit Size on Ferrous Alloys Exposed to Atmospheric Conditions

Shedd, Mara

doi:10.18130/v3rd4s

Cited by 1 publication

(1 citation statement)

References 28 publications

(78 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This trend is opposite to the oxygen solubility data in sodium chloride solutions. [30][31][32] Anode kinetics parameters.-Polarization scan results from artificial pits after different depths of potentiostatic pit growth for 304L and 316L SS in 0.4M FeCl 3 solution (which corresponds to RH = 97%) are shown in Figure 5a and 5b, respectively.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the Maximum Pit Size Model on Stainless Steels under Thin Film Electrolyte Conditions

Woldemedhin

Shedd

Kelly

2014

J. Electrochem. Soc.

View full text Add to dashboard Cite

This paper presents the experimental evaluation of a recently developed model for predicting the maximum pit size possible on a stainless steel surface under a certain set of atmospheric conditions. Prediction of the maximum pit size possible on 304L and 316L was accomplished by coupling the maximum cathode current available from a thin film of ferric chloride covering the steel's surface to the minimum current needed by a growing hemispherical pit. The experimental validation involved exposure tests of 304L and 316L steel samples covered by thin film of ferric chloride solution at a relative humidity of 97% with a loading density of 400 μg cm −2 . Evaluation of the maximum pit size model was done by comparing the pit size from the model with the pit size obtained from exposure tests at the same atmospheric conditions. The model was found to bound all of the experimental data for both alloys if it was assumed that the critical pit solution was between 60% and 80% of the saturation concentration.

show abstract

Section: Resultsmentioning

confidence: 99%