| Autor: |
Plessing, J., Achmus, Ch., Neuhäuser, H., Schönfeld, B., Kostorʐ, G. |
| Zdroj: |
International Journal of Materials Research: Zeitschrift fuer Metallkunde; December 2021, Vol. 88 Issue: 8 p630-635, 6p |
| Abstrakt: |
The effects of short-range order (SRO) and stacking-fault energy (SFE) on the mode of slip and its transition, with increasing solute concentration, from homogeneous to heterogeneous and planar slip are examined. In particular, Cu–Al and Cu–Mn are considered (with Cu–Zn and Cu–Ni for comparison), where reliable SRO data are available for similar compositions and heat treatments as used for the deformation studies. The diffuse antiphase boundary energy is estimated from calculations (based on SRO data) and from transmission electron micrographs of dislocation groups. The diffuse antiphase boundary energy provides a destructible contribution to the glide plane resistance for the motion of dislocations and appears to be the primary reason for the mentioned transitions of the slip mode. The SFE strongly affects the fine structure of slip on the microscale through the cross-slip probability. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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