Description Near-α and α→β titanium alloys exhibit between 900°C and 1100°C an α→β phase transformation on heating and a β→α transformation on cooling. Standard electron back scattered diffraction (EBSD) analysis allows the characterisation of the microtexture of the primary alpha (αp) phase but can only provide limited information about the high temperature β phase because this transforms on cooling to form an inherited secondary alpha (αs) phase. To gain more information about the microstructure and texture of the β phase, Peter Davies, Mark Rainforth and Brad Wynne have adapted a scheme proposed by Humbert et al. (J. Appl. Cryst. 28 (1995) pp.571-576) in a way that has enabled them to calculate a unique parent β orientation for each αs pixel in the EBSD map. This approach, when used with a fine water quenched αs microstructure and high resolution EBSD analysis, also allows information on the deformation substructure within parent β grains to be revealed. In this project the technique developed by Davies et al. will be developed using Python code. The aim being to develop a robust method that can be used throughout the research community in a free and transferable way.