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Stacking Faults in a Cu‐15 at% Al Alloy. I. The Short Range Order and Temperature Dependence of the Stacking Fault Energy
Author(s) -
Tisone T. C.,
Brittain J. O.,
Meshii M.
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.19680270119
Subject(s) - stacking fault energy , annealing (glass) , atmospheric temperature range , stacking , alloy , materials science , stacking fault , range (aeronautics) , thermodynamics , condensed matter physics , crystallography , chemistry , metallurgy , composite material , physics , organic chemistry
An experimental study was made of the short range order (SRO) and temperature dependence of the stacking fault energy (SFE) for a Cu‐15 at% Al alloy using (110) single crystal foils. The SFE was determined using measurements form threefold nodes, intrinsicextrinsic fault pairs, and Frank triangles. Good quantitative agreement was obtained for the SFE determined form these three defects. A SRO dependence of the SFE was found by measuring the SFE form foils quenched from different annealing temperatures which are known to vary the degree of SRO [4]. A reversible temperature dependence of the SFE was found where the SFE increased with increasing temperature for both intrinsic and extrinsic faulting. The ratio of extrinsic to intrinsic fault energy was found to be 1.14 ± 0.08.