Aluminium Alloy Samples

Ra (nm)

RMS (nm)

Duplex nickel + Chromium (Hexavalent) electrodeposition onto Al 1050

0.066

0.071

Duplex nickel + Chromium (Hexavalent) electrodeposition onto Al 1050 + electroless nickel undercoat

0.058

0.068

Duplex nickel + Chromium (Trivalent) electrodeposition onto Al 1050

0.093

0.120

Duplex nickel + Chromium (Trivalent) electrodeposition onto Al 1050 + electroless nickel undercoat

0.059

0.061

Duplex nickel + Chromium (Hexavalent) electrodeposition onto Al 6061

0.034

0.043

Duplex nickel + Chromium (Hexavalent) electrodeposition onto Al 6061 + electroless nickel undercoat

0.031

0.039

Duplex nickel + Chromium (Trivalent) electrodeposition onto Al 6061

0.033

0.041

Duplex nickel + Chromium (Trivalent) electrodeposition onto Al 6061 + electroless undercoat

0.032

0.040