| abstract |
One method of applying an adherent nickel plating to titanium is to prepare the surface, deposit nickel contained in a plating solution, and perform a final treatment. The surface preparation steps include soaking in hydrochloric acid, activation with nitric acid / hydrofluoric acid, treatment to slow reformation of an oxide layer, and making a deposit. primer. The treatment to reduce oxide formation can be carried out without applying a current, in a solution of acetic and hydrofluoric acid, in which the titanium alloy has been electrolytically dissolved. Alternatively, the treatment can be carried out by rendering the part to be plated anodic in a solution of acetic acid and hydrofluoric acid. |