Effect of Nb content on the microstructure and mechanical properties of Zr-Cu-Ni-Al-Nb glass forming alloys
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 239-244 |
Journal / Publication | Journal of Alloys and Compounds |
Volume | 403 |
Issue number | 1-2 |
Publication status | Published - 10 Nov 2005 |
Link(s)
Abstract
(Zr65Al10Ni10Cu15) 100-xNbx glass forming alloys with Nb contents ranging from 0 to 15 at.% were prepared by water-cooled copper mould cast. The alloys with different Nb contents exhibited different microstructures and mechanical properties. Unlike the monolithic Zr65Al10Ni 10Cu15 bulk metallic glass, only a few primary bcc β-Ti phase dendrites were found to distribute in the glassy matrix of the alloys with x = 5. For alloys with x = 10, more β-phase dendrites forms, together with quasicrystalline particles densely distributed in the matrix of the alloys. For alloys with x = 15, the microstructure of the alloy is dominated by a high density of fully developed β-phase dendrites and the volume fraction of quasicrystalline particles significantly decreases. Room temperature compression tests showed that the alloys with x = 5 failed at 1793 MPa and exhibited an obvious plastic strain of 3.05%, while the other samples all failed in a brittle manner. The ultimate fracture strengths are 1793, 1975 and 1572 MPa for the alloys with x = 0, 10 and 15 at.% Nb, respectively. © 2005 Elsevier B.V. All rights reserved.
Research Area(s)
- Bulk metallic glass, Composites, Microstructure, Shear bands
Citation Format(s)
Effect of Nb content on the microstructure and mechanical properties of Zr-Cu-Ni-Al-Nb glass forming alloys. / Sun, Y. F.; Shek, C. H.; Wei, B. C.; Li, W. H.; Wang, Y. R.
In: Journal of Alloys and Compounds, Vol. 403, No. 1-2, 10.11.2005, p. 239-244.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review