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Electron Diffraction and Electron Microscopic Study of Long‐ and Short‐Range Order in Ni 4 Mo and of the Substructure Resulting from Ordering
Author(s) -
Ruedl E.,
Delavignette P.,
Amelinckx S.
Publication year - 1968
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19680280132
Subject(s) - substructure , short range order , diffraction , crystallography , materials science , alloy , condensed matter physics , range (aeronautics) , order (exchange) , electron diffraction , electron , crystal structure , lattice (music) , optics , chemistry , physics , metallurgy , composite material , quantum mechanics , structural engineering , finance , economics , acoustics , engineering
Abstract The ordering process in Ni 4 Mo gives rise to three different classes of interfaces within a single crystal of the basic structure. The geometry of these interfaces and the diffraction effects to be expected from them are discussed. Evidence for the different classes of interfaces is given. The interfaces resulting from slip are discussed and compared with the observations. Quenched specimens exhibit short range order. A model for short range order in this alloy is presented. Preliminary experiments indicate that quenched Ni 3 Mo also shows short range order of a similar type as Ni 4 Mo.