Texture components in aluminium alloys can be distinguished by colour metallography using anodic oxidation and polarization microscopy. This method is particularly useful for texture inspection in correlation with other structural parameters such as grain size, orientation correlation and texture inhomogeneity. The method reveals, however, only two of three orientation parameters. It is therefor not suitable to obtain complete orientation distribution functions.
Kröger, S., Dahlem-Klein, E., Weiland, H., & Bunge, H. J. (1988). Texture Determination in Aluminium Alloys Using Colour Metallography. Textures and Microstructures, 10(1), 41–48. https://doi.org/10.1155/tsm.10.41