Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1470239 | Corrosion Science | 2011 | 6 Pages |
The galvanic corrosion behaviour of a rivet joint of two sheets of the aluminium alloys EN AW-6014-T4 and EN AW-6082-T5 joined by an electrogalvanized steel blind rivet was investigated. The potentiodynamic polarization curves in a 5 wt.% NaCl solution show a potential reversion of the anodic and cathodic regions of the rivet joint. The surface potential was investigated with a capillary electrode before and after corrosion. From the measurements by the capillary electrode and SEM-observations an improved resistance against galvanic corrosion is expected after the dissolution of the zinc layer of the blind rivet.
Research highlights► Electrochemical corrosion behaviour of a rivet joint. ► Contact corrosion and surface potential. ► Polarization curves including a reverse scan. ► SEM observation.