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The Mobility of Grown‐in Dislocations in the Intermetallic Compound MgZn 2 II. Stress Dependence of Basal Slip at 390 °C
Author(s) -
Paufler P.,
Marschner J.,
Schulze G. E. R.
Publication year - 1971
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.2220430128
Subject(s) - intermetallic , anisotropy , materials science , slip (aerodynamics) , peierls stress , dislocation , condensed matter physics , critical resolved shear stress , crystallography , creep , shear (geology) , composite material , thermodynamics , chemistry , dislocation creep , alloy , physics , optics , shear rate , viscosity
The velocity ẋ of grown‐in (0001) 〈1210〉 dislocations in the intermetallic compound MgZn 2 has been determined as a function of the shear stress τ at 390 °C. The results show that ẋ fits an exp (—const/τ) dependence as in the case of prism slip. Comparison of basal and prism slip gives evidence for a low anisotropy of the Peierls stress. Microscopic measurements are in good agreement with stationary creep data when experimental results of the mobile dislocation density are used.