The Role of Oxygen in α2 Formation in the Titanium Model Alloy Ti-7Al H. M. Gardner, A. Radecka, D. Rugg, D. E. J. Armstrong, M. P. Moody and P. A. J. Bagot MATEC Web Conf., 321 (2020) 04003 Published online: 12 October 2020 DOI: 10.1051/matecconf/202032104003