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The Influence of Chloride Concentration on the Kinetic Behaviour for the Initiation Stage of pitting corrosion on aluminium
Author(s) -
Broli Aa.,
Holtan H.,
Sigurdsson H.
Publication year - 1975
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19750260806
Subject(s) - chloride , aluminium , pitting corrosion , corrosion , sodium , kinetic energy , extrapolation , materials science , chemistry , metallurgy , mathematical analysis , physics , mathematics , quantum mechanics
Abstract Experiments are performed to study the influence of applied potential and chloride concentration on the kinetic behaviour of pitting corrosion initiation for unalloyed aluminium. A potentiostatic method is used at 30°C in deaerated solutions of sodium chloride. The pitting potential, E p , is determined by the extrapolation method described by Broli, Holtan and Midjo, and a relation between E p and chloride concentration is found. Kinetic interpretations such as the influence of applied potential and chloride concentration on the induction time are given.