Deformation behavior and plastic instability of off-stoichiometric Co-Fe alloys

Authors

L. C. Zhang, Institut fur Komplexe MaterialienFollow
M. Calin, Institut fur Komplexe Materialien
F. Paturaud, W.C. Heraeus
J. Eckert, Institut fur Komplexe Materialien

RIS ID

26810

Publication Details

Zhang, L. C., Calin, M., Paturaud, F. Eckert, J. (2007). Deformation behavior and plastic instability of off-stoichiometric Co-Fe alloys. Scripta Materialia, 57 (8), 731-734.

Abstract

Deformation responses of two as-cast off-stoichiometric Co–Fe alloys have been investigated under compression and tension. Both alloys exhibit large plasticity (≳100%) without softening or fracture under compression. Under tension, the Co–25Fe alloy shows a large ductility of ∼20% similar to that reported for other hot-extruded alloys displaying a clear necking morphology, whereas Co–35Fe fails in a brittle manner by mixed intergranular and transgranular fracture. The ductility in tension is sensitive to the capacity for strain hardening under compression.