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Thermally activated deformation of Alpha Zirconium
Author(s) -
Trojanová Z.,
Lukáč P.
Publication year - 1984
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170190318
Subject(s) - zirconium , materials science , deformation (meteorology) , yield (engineering) , atmospheric temperature range , crystallite , volume (thermodynamics) , stress (linguistics) , composite material , metallurgy , thermodynamics , physics , linguistics , philosophy
The effect of temperature on the yield stress of polycrystalline α‐zirconium has been examined at temperatures between 77 and 900 K. A strong temperature dependence of the yield stress (interrupted in the temperature ranges 300 to 400 K and 500 to 700 K where the yield stress is independent of temperature) indicates the occurence of the thermally activated processes during deformation. The activation volume at the onset of deformation has been determined as a function of temperature in the range 77 to 523 K.