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The Temperature Dependence of Slip Planes in Fe‐3.4% Si Single Crystals
Author(s) -
Šesták B.,
Blahovec J.
Publication year - 1970
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.19700400219
Subject(s) - materials science , slip (aerodynamics) , atmospheric temperature range , condensed matter physics , tension (geology) , bending , compression (physics) , composite material , thermodynamics , physics
The temperature dependence of macroscopic slip planes observed on tension and compression sides of specimens deformed slowly by four‐point bending has been investigated over the temperature range 195 to 483 °K. The experimental results are presented in form of Ψ(χ)‐curves. The measured Ψ (χ)‐curves were compared with the curves calculated by Vítek using the theory of thermally activated motion of screw dislocations extended on {110} and {112} planes and good agreement was found above room temperature. Discrepancies between the calculated and measured Ψ(χ)‐curves exist at low temperatures, where slip along {110}‐planes becomes significant. Differences between the Ψ(χ)‐curves measured on the tension and the compression side cannot be satisfactorily explained by existing theories.