Article ID Journal Published Year Pages File Type
1470239 Corrosion Science 2011 6 Pages PDF
Abstract

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.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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