TY - JOUR
T1 - Validation of a percolation model for passivation of FeCr alloys
T2 - I current efficiency in the incompletely passivated state
AU - Newman, R. C.
AU - Foong Tuck Meng, Tuck Meng
AU - Sieradzki, K.
PY - 1988
Y1 - 1988
N2 - FeCr alloys with ≤ 17 at.% Cr show incomplete primary passivation in acid solutions, with a residual current which decreases steeply with increasing Cr content in the range 8 - 12 at.%. According to the percolation model of Sieradzki and Newman, incomplete passivation should be associated with detachment of tiny metal particles, whose surface are passivated by finite clusters of Cr atoms; this should lead to discrepancies between mass loss and anodic charge, which have now been detected for three alloys (7.8, 10.0 and 11.6 at.% Cr).
AB - FeCr alloys with ≤ 17 at.% Cr show incomplete primary passivation in acid solutions, with a residual current which decreases steeply with increasing Cr content in the range 8 - 12 at.%. According to the percolation model of Sieradzki and Newman, incomplete passivation should be associated with detachment of tiny metal particles, whose surface are passivated by finite clusters of Cr atoms; this should lead to discrepancies between mass loss and anodic charge, which have now been detected for three alloys (7.8, 10.0 and 11.6 at.% Cr).
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U2 - 10.1016/0010-938X(88)90074-1
DO - 10.1016/0010-938X(88)90074-1
M3 - Article
AN - SCOPUS:0023842720
SN - 0010-938X
VL - 28
SP - 523
EP - 527
JO - Corrosion Science
JF - Corrosion Science
IS - 5
ER -