Session Details
Session 9: Aerospace/Defense/Military Zinc Nickel Advancements
Abstract Number:
90
This research investigates the use of pulse-reverse voltages on Al 2219 as a pre-treatment for ZnNi electrodeposition via brush-plating. Faraday’s process can employ a neutral and environmentally benign pretreatment electrolyte within a brush-plating system for field applications of ZnNi deposition on Al surfaces.
Topics:
Advances in Surface Finishing Technology
ZnNi is useful as a hard protective corrosion inhibiting coating for aluminum alloys. In this presentation, we will discuss recent work on the development of a one-step surface pretreatment for the brush electrodeposition of LHE alkaline ZnNi coatings on Al 2219. Coating of the aluminum commonly requires extensive and specialized surface pretreatment processes (such as zincate and electrolysis NiP application) prior to deposition, owing to aluminum’s reactive nature and affinity for oxygen. By leveraging pulse-reverse current application, Faraday’s process can employ a neutral and environmentally benign pretreatment electrolyte within a brush-plating system for field applications of ZnNi deposition on Al surfaces.