Fig. 4: Identification of a low-Ni metastable phase γm.
From: Thermodynamic model for lattice point defect-mediated semi-coherent precipitation in alloys
APT reconstructed volumes from the Fe-3.3 at% Ni material. 1D-composition profile along with the cylinders at the interface between the α and γ phases extracted from two precipitates. Green shaded areas represent the statistical error associated with the measurement of the composition. The Ni equilibrium and metastable solubility limits, and the nominal Ni composition are respectively shown in solid, dashed, and dotted lines. Compositions of precipitates 1 and 2 are close to the ones of γ and γm phases respectively.
