Selected area diffraction (SAD) D 900C/100h 900C/100h B2+O um Ti-23Al-22Nb,a2/B2+O phase 7 Intermetallics 9(2001)1045-1052Selected area diffraction (SAD) 7 Ti-23Al-22Nb, 2 /B2+O phase Intermetallics 9 (2001) 1045–1052