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Asymmetry of Slip in Fe‐Si Alloy Single Crystals
Author(s) -
Šesták B.,
Zárubová N.
Publication year - 1965
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.19650100124
Subject(s) - slip (aerodynamics) , critical resolved shear stress , asymmetry , materials science , shear (geology) , slip line field , alloy , condensed matter physics , shear stress , geometry , composite material , ultimate tensile strength , silicon , crystallography , physics , metallurgy , thermodynamics , chemistry , mathematics , shear rate , quantum mechanics , viscosity
The slip planes in Fe–3% Si and Fe–6.5% Si single crystals after slow deformation ( \documentclass{article}\pagestyle{empty}\begin{document}$ \dot \varepsilon $\end{document} ≈ 10 −6 s −1 ) are studied by four‐point bending at room temperature. It is observed that the slip planes on the tensile and compression sides of the same specimen are different. The course of the critical resolved shear stress S Ψ / S 110 on the planes of the 〈111〉 zone is derived from the positions of the slip planes. The relative critical resolved shear stress depends on the sense of the resolved shear stress and increases as the silicon content rises. Three microscopic models of slip are discussed: composite slip along the {110} planes, composite slip along the {110} and {112} planes, and non‐crystallographic (banal) slip. The experimental results can be explained most easily by the second model. The possible influence of ordering is also discussed.