J.
Wolfenstine, J.-H. Shih, 1994, “The Creep Behavior
and Dislocation Structure of KI-KBr,” Journal
of Materials Science, 29, 6199-6206
The
Creep Behavior and Dislocation Structure of KI-KBr
ABSTRACT
Creep
behaviour and dislocation substructure as a function
of strain was investigated for two solid solution
alloys and the pure components in the KBr-Kl system.
The creep characteristics for the KBr-Kl alloys are
in good agreement with creep behaviour observed in
other ionic and class I metallic solid solution alloys,
where the creep rate is controlled by a viscous dislocation
glide process. The creep resistance of the KBr-KI
alloys is higher than that for the pure components
at the same value of homologous temperature. The dislocation
substructure of the KBr-Kl alloys and pure components
at large strains consists of well defined subgrains.
Subgrain formation is shifted to larger strains in
the alloys compared to the pure components as a result
of solute drag forces on dislocations during glide.
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