Nanostructure–dendrite composites in the Fe–Zr binary alloy system exhibiting high strength and plasticity

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 (Fe 2Zr or...

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Bibliographic Details
Published in:Scripta materialia 2007-12, Vol.57 (12), p.1153-1156
Main Authors: Park, Jin Man, Sohn, Sung Woo, Kim, Tae Eung, Kim, Do Hyang, Kim, Ki Buem, Kim, Won Tae
Format: Article
Language:English
Subjects:
Composites
Compressive strength
Eutectic composition
Eutectic solidification
Eutectics
Nanocomposites
Nanomaterials
Nanostructure
Plasticity
Polymer matrix composites
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Summary: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 (Fe 2Zr or α-Fe) and nanoscaled lamellar eutectic matrix (Fe 2Zr + 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.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2007.08.004