Nickel fluoride as a surface activation agent for electroless nickel coating of anodized AA1050 aluminum alloy

Add time:07/14/2019    Source:sciencedirect.com

In this study, the use of nickel fluoride tetrahydrate (NiF2·4H2O) as a surface activator and sealant at the same time for the coating of electroless nickel-phosphorus (Ni-P) on anodized aluminum alloy AA1050 is proposed. The usage of the activator resulted in more efficient deposition of Ni-P, improved adhesion properties, and increased wear and friction behavior as opposed to non-activated conditions. Scanning electron microscopy (SEM) and confocal laser microscopy (CLM) analyses of ultramicrotome-cut cross sections of Ni-P coated specimens, surface-activated by NiF2·4H2O, revealed a more well-structured metal-coating interface as opposed to non-activated conditions.

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