A devitrification procedure by annealing was applied to a multicomponent Fe-based metallic glass in order to obtain nanocrystalline materials. Phase composition and phase morphology were strongly dependent on the annealing conditions. An elevated temperature mechanical behavior of nanostructures was evaluated by tensile testing. A strong effect of phase morphology on the mechanical response of the material was revealed. A most attractive combination of strength and plasticity was observed in the nanostructure with approximately equal grain sizes of crystallized phases.
Bibliographical noteFunding Information:
This material is based upon a work supported in part by the National Science Foundation under Grant NSF-DMR-0240144. The authors would like also to acknowledge the support from the Nanosteel Company, Idaho, 83402.
Copyright 2008 Elsevier B.V., All rights reserved.
- Mechanical properties