Fig. 4: Effect of high-density Ni-rich LCI entities on SIMT.

a In-situ synchrotron X-ray diffraction profiles captured during a tensile cycle in our as-aged specimen. b Evolution of the volume fractions of B2, R and B19’ phases during a tensile cycle in our as-aged specimen. c, d Simulated atomic configurations of NiTi specimens before and after MC/MD during tensile loading at strains of 0%, 2% and 8%. B2 phase and B19’ phase are colored in white and red, respectively. The other lattice structures are colored in gray. e MD-derived evolution of B19’ phase volume fraction with applied strain of NiTi specimens before and after MC/MD.