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Hierarchical nanoporous metal/BMG composite rods with excellent mechanical properties.
- Source :
-
Intermetallics . Oct2016, Vol. 77, p1-5. 5p. - Publication Year :
- 2016
-
Abstract
- Hierarchical nanoporous structured NPC/BMG composite rods (NPC/BMG: nanoporous copper/bulk metallic glass) were facilely fabricated by one-pot chemical dealloying the Cu 50 Zr 45 Al 5 BMG rods in 0.05 M HF solution for 24 h. The cross-sectional SEM images illustrate that the NPC/BMG composite rods exhibit the perfect combination of inner rod-shaped Cu-Zr-Al amorphous phase core and outer tube-shaped NPC layer with a thickness of 85 μm. As compared to the reported NPC composites, the new composite rods demonstrate remarkable enhanced mechanical properties with an ultrahigh strength of 1500 MPa and a large compression strain of 2.9%. Additionally, the increase in the compression strain is attributed to the formation of the buffer deformation zone resulting from the existence of the outer nanoporous copper tube. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09669795
- Volume :
- 77
- Database :
- Academic Search Index
- Journal :
- Intermetallics
- Publication Type :
- Academic Journal
- Accession number :
- 117896202
- Full Text :
- https://doi.org/10.1016/j.intermet.2016.06.014