Corrosion Evaluation of Body in White Bimetallic Joints

Abstract This scientific article deals with cyclic corrosion testing of bimetallic joints in order to describe the influence different surface treatment as a protection against galvanic on materials. Multi-material body parts joined advanced manufacturing technologies are used achieve required car properties. Metallic materials have values electronegativity and joining increases risk corrosion. Different types coatings prevent corrosion, but each investments costs. Galvanic affects lifecycle car. Cyclic provides replicable results estimate range real environment. Test specimens from were riveted treated various treatments. The method design samples preparation is unique reflects reality more than current methods. It has not yet been published any literature. test was performed for 6 weeks. Samples subjected salt mist temperatures 25 °C 50 °C, wetting drying phases. evaluated according standard EN ISO 4628-1:2016. Microscopic energy-dispersive analysis performed. Tests shown considerable uncoated samples. On ecoated recorded.