Specific analysis of EBSD data to study the texture inheritance due to the β → α phase transformation

A specific processing of EBSD data is proposed to study the β → α texture inheritance of α titanium or α zirconium alloys. A non standard misorientation map is calculated to localise the colonies inherited from the same parent β grain. The calculation of the parent orientation from its inherited variants detailed in previous works has been adapted to the data obtained from an automated EBSD analysis. Finally, a method to derive the orientation map of the parent β phase from that of the α inherited phase is proposed. The resulting α and β COMs are used to study some aspects of the variant selection occurring in the β → α transformation of a T40 sample.