Type of chromium coatings onto aluminium substrates | First critical load (N) | Second critical load (N) |
Duplex nickel/Hexavalent chromium onto Al 1050 | 70 | 130 |
Duplex nickel/Trivalent chromium onto Al 1050 | 85 | 135 |
Duplex nickel/Hexavalent chromium onto Al 6061 | 22 | 72 |
Duplex nickel/Trivalent chromium onto Al 6061 | 25 | 70 |