Figure 4: SESF to nanotwin transformation.
From: Phase transformation strengthening of high-temperature superalloys
(a) DFT cell showing segregation along a SESF in ME3. (b) on the left is an experimental HAADF–STEM image of a two-layer SESF being sheared by two Shockley partials to form a three layer twin near a γ-γ′ interface. On the right is a centre of symmetry analysis of the HAADF–STEM image. (c) DFT cell showing the resulting twin from the process observed in (b). Scale bar, 1 nm.
