| Title |
The Crystal Structure of the Ni3Nb Phase in Inconel 718 Alloy |
| Authors |
최형섭(Hyung S . Choi); 최주(Ju Choi) |
| Abstract |
The crystal structure of the Ni₃Nb phase which appears in an overaged Inconel 718 is examined by selected area electron diffraction. It is confirmed that the phase has an ordered close packed layer structure with a periodic stacking modulation of the stacking order which can be specified as 2H structure. The specific stacking order of the 2H structure can be expressed as AB`AB`…… The atomic arrangement on the close packed layer is identical with that of one dimensional long period superlattice of M=1 type superstructure. |