Coloring titanium with different anodizing voltages - GIF and photo

[desbromilow]

My question was if this process would work with aluminum.

not exactly, Aluminium oxide layer doesn't filter light the same way because the typical oxide layer doesn't vary in thickness from it's "natural state". Most coloured aluminium items are done by colouring the anodised layer of oxide. Aluminium forms an oxide layer quite fast, so most home anodising setups work on the principle of degreasing the existing oxide layer, applying dyes into the oxide layer, and then sealing the dye in the layer. There are many webpages out there describing how to use fabric dyes to achieve coloured aluminium parts.

HTH,
Des