uminum, berrylium or their alloys in an anodizing solution containing hydroxylamine, phosphate, nonioinc surfactant and alkali metal hydroxide; passing a current between surface and cathodeUS20030070935Oct 2, 2001Apr 17, 2003Dolan Shawn E.Anodization of light metals such as magnesium and aluminum using pulsed current of low average voltage to provide corrosion, heat and abrasion resistance coating