Fig. 3: Basal, prism and pyramidal dislocations and pile-ups in soft/hard grain combination.
From: Predicting dwell fatigue life in titanium alloys using modelling and experiment
High magnification images showing a the nucleation of a basal dislocations in hard grain by the impingement of prism pile-ups in soft grain, b two kinds of a prism pile-ups in the soft grain, c nucleation of basal loops from the boundary. d, e c + a dislocations in the hard grain. f c + a dislocation cross-slip and g a c + a dislocation network. All images were captured in STEM mode except (c), which is a BF-TEM image under two-beam condition. The beam conditions are shown in each sub-figure.
