Crack geometry for basal slip of Ti3Al

The work presents the study and crystallogeometrical analysis of the geometry of micro- and macrocracks in a Ti3Al single crystal with an orientation where the basal slip is operative. The basal and {1 0 1¯ 1}, {1 0 1¯ 2}, {1¯1¯ 2 3} pyramidal planes are the planes of micro- and macrocracks facets. The coalescence of shear microcracks in the basal plane leads to the zigzag cracks formation on the fracture surface composed of (0 0 0 1), {1 0 1¯ 1} and {1 0 1¯ 2} planes.