The present study shows that nanostructure-dendrite composites successfully synthesize in the Fe-Zr binary eutectic system, exhibiting a better combination of strength and plasticity than bulk metallic glass or nanograined materials. The composites composed of microscaled dendritic phases (Fe2Zr or α-Fe) and nanoscaled lamellar eutectic matrix (Fe2Zr + α-Fe) exhibit high compressive strength (1.8-2.6 GPa) and plasticity (2.5-12%) under compression. In particular, the plasticity can be improved when coarsened ductile dendritic phases are reinforced in the fine-scaled lamellar eutectic matrix.
Bibliographical noteFunding Information:
This work was supported by the Global Research Laboratory Program of Korea Ministry of Science and Technology. J.M. Park, S.W. Sohn and T.E. Kim acknowledge the support from the second stage of the Brain Korea 21 Project in 2007.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys