Nickel Plating Aluminum Galvanic Corrosion

Typically we are plating small precision machined housings from 6061 t6 aluminum alloy.

Nickel plating aluminum galvanic corrosion.

Porosity in base metal causing plating problems february 3 2017. The chart below shows how different plating materials react to one another with regard to their galvanic potential. Galvanic corrosion some times called dissimilar metal corrosion is the process by which the materials in contact with each other oxidizes or corrodes. Note that ni is more noble than low carbon steel essentially iron and.

Electroless nickel plating en can be applied to a wide range of basis metals including steel copper brass and aluminum alloys. Zangari in encyclopedia of interfacial chemistry 2018. First there must be two electrochemically dissimilar metals present. Electroless nickel plating can provide a robust solution to corrosive attack across a range of corrosive mechanisms including galvanic corrosion chemical attack and erosion.

I am having plating problems such as visible peeling and blistering and voiding in areas. Iron group metals nickel cobalt iron nickel plating is among the most common electrodeposition processes and is used mostly as a part of a multilayered system designed to increase wear and corrosion resistance and also able to function as a diffusion barrier. The plating is typically electroless nickel and then gold.