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A correlation of the short range order in Ni 3 Fe with certain physical properties of this alloy
Author(s) -
Wilson W. L.,
Gould R. W.
Publication year - 1972
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s002188987200891x
Subject(s) - annealing (glass) , alloy , short range order , materials science , scattering , condensed matter physics , electrical resistivity and conductivity , range (aeronautics) , crystallography , crystal structure , order (exchange) , chemistry , optics , metallurgy , physics , composite material , finance , quantum mechanics , economics
The changes in the short‐range ordered structure of an alloy containing 74 at. % Ni, 26 at. % Fe have been determined for a series of anneals between 0 and 40 h at 480°C. Three‐dimensional short‐range‐order parameters have been determined by diffuse X‐ray scattering analysis from a single‐crystal sample. The ordered arrangement has been shown to change from one dominated by nearest‐neighbor interactions to one with longer range interactions in the period between 8 and 12 h at 480°C. For longer times of annealing, this gradually changes to a more cooperative interaction extending over longer distances and approaching the arrangement found in the fully ordered structure. The changes in the hardness, resistivity, and coercive force which occur at or near 12 h of annealing support the contention that a change in the type of atomic arrangement is taking place at this time.