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Elektrochemische Korrosionsuntersuchungen und Empfindlichkeit gegenüber Lochkorrosion einer Halbhohlstanznietverbindung aus kohlenstofffaserverstärktem Kunststoff (CFK) – Laminat und EN AW‐6060‐T6
Author(s) -
Mandel M.,
Krüger L.
Publication year - 2012
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201200945
Subject(s) - rivet , materials science , corrosion , pitting corrosion , joint (building) , galvanic corrosion , metallurgy , carbon steel , composite material , crevice corrosion , alloy , galvanic cell , carbon fiber reinforced polymer , dissolution , reinforced concrete , structural engineering , engineering , chemical engineering
The galvanic corrosion of a self‐pierce rivet joint of EN AW‐6060‐T6 and a carbon fibre reinforced plastic (CFRP) laminate joint by an Almac®‐coated self‐pierce steel rivet was electrochemically investigated in a 5 wt.% sodium chloride solution. Furthermore, the joint was examined in a climate chamber according to the VDA 621‐415 (VDA = Verein Deutscher Automobilhersteller) standard test and microscopically observed. Electrochemical tests of the single components already reveal that a rivet joint of the materials can lead to pitting corrosion on the aluminium alloy surface and enforces the dissolution of the anti‐corrosion layer Almac® of the rivet. This predicted corrosion behaviour was confirmed by the microscopic observations after the exposure of the joint in the climate chamber.