fig3

Figure 3. 2D simulations of athermal ω transformation in Ti-26 at.% Nb upon water quenching. (A) Schematics of zooming into the microstructure; (B) Enlarged images showing microstructures of athermal ω nanodomains in the β matrix, as indicated in (A), where (B1-B4) show the concentration fields, and (B5-B8) show the structural order parameter fields. The four ω variants are presented in different colors, and the β matrix is represented in blue; (C) Change in volume fraction of athermal ω upon cooling; (D) Size distribution of athermal ω nanodomains; (E) Variation of the average shuffle degree of athermal ω nanodomains.