Use of impressed current for accelerated corrosion testing of aluminium alloy panels

Previous studies have shown how galvanic coupling between stainless steel 316 fasteners and a coated aluminium alloy 7075-T6 test panel could accelerate the coating degradation during exposure to corrosive environments. In this work, impressed current between the fastener and panel was evaluated for use instead of simple galvanic coupling. Two coating systems, including a chromate-containing and a non-chromated coating system, were exposed to...