Analysis of local crystallographic orientation in an annealed Ti60 billet

Publication date: Available online 13 October 2018Source: Journal of Materials Science & TechnologyAuthor(s): Z.B. Zhao, Z. Liu, Q.J. Wang, J.R. Liu, R. YangAbstractA heterogeneous microstructure in terms of local orientation distribution is often found in near-α titanium alloys. The presence of large regions with similar crystallographic orientation, called ‘macrozones’, could drastically decrease the fatigue performance of titanium alloys. The present work reports on the crystallographic orientation of a near-α titanium alloy, Ti60, billet after annealing in an α+β phase field. The texture was found to be weak, and no obvious macrozone was found in our measured zone where the variant selection is suppressed. Meanwhile, in-depth electron backscattered diffraction (EBSD) analysis was applied to evaluate the final microstructure, and the mechanisms by which they formed were analyzed.
Source: Journal of Materials Science and Technology - Category: Materials Science Source Type: research