Housing and method for making the same

摘要

A housing is provided which includes an aluminum or aluminum alloy substrate, an aluminum layer and a corrosion resistant layer formed on the aluminum or aluminum alloy substrate in that order. The corrosion resistant layer is an Al-C-N layer. Then, Gd ions is implanted in the Al-C-N layer by ion implantation process. The atomic percentages of N and C in the Al-C-N gradient layer gradually increase from the side of Al-C-N gradient layer near the aluminum or aluminum alloy substrate to the other side of Al-C-N gradient layer, away from aluminum or aluminum alloy substrate. Therefore the housing has a high corrosion resistance. A method for making the housing is also provided.