DataVXJournal of Materials ResearchPaper
journal article·2009-08

High-strength bulk Al-based bimodal ultrafine eutectic composite with enhanced plasticity

Jin Man Park, Norbert Mattern, Uta Kühn, Jürgen Eckert, Ki Buem Kim, Won Tae Kim, Kamanio Chattopadhyay, Do Hyang Kim

Journal of Materials Research· Volume 24· Issue 8
Publisher page
Source abstract

Abstract

An in situ bulk ultrafine bimodal eutectic Al–Cu–Si composite was synthesized by solidification. This heterostructured composite with microstructural length scale hierarchy in the eutectic microstructure, which combines an ultrafine-scale binary cellular eutectic (α-Al + Al2Cu) and a nanometer-sized anomalous ternary eutectic (α-Al + Al2Cu + Si), exhibits high fracture strength (1.1 ± 0.1 GPa) and large compressive plastic strain (11 ± 2%) at room temperature. The improved compressive plasticity of the bimodal-nanoeutectic composite originates from homogeneous and uniform distribution of inhomogeneous plastic deformation (localized shear bands), together with strong interaction between shear bands in the spatially heterogeneous structure.
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Research context

NanomaterialsComposites

OpenAlex topics: Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties · Microstructure and mechanical properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (26)

Show source-provided references
1. 10.1016/j.scriptamat.2007.08.00410.1016/j.scriptamat.2007.08.004 ↗
2. 10.1016/j.actamat.2005.01.01210.1016/j.actamat.2005.01.012 ↗
3. 10.1016/j.jallcom.2008.09.16010.1016/j.jallcom.2008.09.160 ↗
4. 10.1557/JMR.2004.046210.1557/JMR.2004.0462 ↗
5. High strength Ni-Zr binary ultrafine eutectic-dendrite composite with large plastic deformability
6. Villars · 1995
7. 10.1557/jmr.2007.003210.1557/jmr.2007.0032 ↗
8. 10.1557/jmr.2006.007410.1557/jmr.2006.0074 ↗
9. 10.1038/nmat79210.1038/nmat792 ↗
10. 2001
11. 10.1080/0950083041000172833610.1080/09500830410001728336 ↗
12. 10.1038/nmat79710.1038/nmat797 ↗
13. 10.1063/1.299066210.1063/1.2990662 ↗
14. 10.1063/1.210599810.1063/1.2105998 ↗
15. 10.1063/1.279318910.1063/1.2793189 ↗
16. 10.1016/j.intermet.2008.01.00510.1016/j.intermet.2008.01.005 ↗
17. 10.1016/j.jallcom.2006.08.33510.1016/j.jallcom.2006.08.335 ↗
18. 10.1557/JMR.2008.025210.1557/JMR.2008.0252 ↗
19. 10.1063/1.289203810.1063/1.2892038 ↗
20. Mondolfo · 1976
21. 10.1016/j.scriptamat.2008.08.00310.1016/j.scriptamat.2008.08.003 ↗
22. 10.1016/j.scriptamat.2007.04.01010.1016/j.scriptamat.2007.04.010 ↗
23. Elliott · 1983
24. Lamellar and rod eutectic growth. Trans. Metall
25. 10.1016/j.jcrysgro.2004.10.10110.1016/j.jcrysgro.2004.10.101 ↗
26. 10.1063/1.302974510.1063/1.3029745 ↗