fig4
From: Detwinning/twin growth-induced phase transformation in a metastable compositionally complex alloy
Figure 4. Schematic mechanism of detwinning/twin growth-induced phase transformations at a Σ3 boundary after water quenching. (A) Formation of incoherent twin boundary along the coherent twin boundary. (B) Generation of 9R structure from incoherent twin boundary. (C) Promotion of HCP phase near 9R structure. HCP: Hexagonal close-packed.
