Fig. 1: Formation of A15 nano-phase inclusions in fcc metals.
From: Compact A15 Frank-Kasper nano-phases at the origin of dislocation loops in face-centred cubic metals
The 3D clusters \({I}_{{{{{{{{\rm{N}}}}}}}}}^{A15}\) with N SIA nucleate through accumulation of mutually-orthogonal 〈100〉 SIA dumbbells and interstitial atoms at the octahedral site. The atoms of fcc and A15 structures are shown in grey and purple, respectively. For each configuration, the total number of atoms that contribute to the A15 cluster is indicated at the bottom of each structure. The depicted structures correspond to the low energy configurations from Fig. 2.
