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Vol.10, No.1, 8 ~ 16, 1972
Title
The Crystal Structure of the Ni3Nb Phase in Inconel 718 Alloy
최형섭Hyung S . Choi, 최주Ju 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.
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