Dark field image from the encircled reflections in the SAED revealing nanoscale γ´´ and eta-Ni3Ti plate-shaped precipitates
Samples and images courtesy of Vijay K. Vasudevan, University of Cincinnati.

Dark field image from the encircled reflections in the SAED revealing nanoscale γ´´ and eta-Ni3Ti plate-shaped precipitates

Dark field image from the encircled reflections in the SAED revealing nanoscale γ´´ and eta-Ni3Ti plate-shaped precipitates. The γ´´ has a DO22 structure, whereas the eta has a hexagonal structure. Inset: [011] SAED pattern from IN718 Ni-base superalloy showing reflections from the γ matrix, γ´´ precipitates and eta-Ni3Ti plate-shaped precipitates.