Zr-Cu-Ni-Al bulk metallic glasses with superhigh glass-forming ability.

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dc.contributor.authorSun, YJen_AU
dc.contributor.authorQu, DDen_AU
dc.contributor.authorHuang, YJen_AU
dc.contributor.authorLiss, KDen_AU
dc.contributor.authorWei, XSen_AU
dc.contributor.authorXing, DWen_AU
dc.contributor.authorShen, Jen_AU
dc.date.accessioned2009-07-21T05:33:15Zen_AU
dc.date.accessioned2010-04-30T05:04:12Zen_AU
dc.date.available2009-07-21T05:33:15Zen_AU
dc.date.available2010-04-30T05:04:12Zen_AU
dc.date.issued2009-02en_AU
dc.date.statistics2009-02en_AU
dc.description.abstractZr-Cu-Ni-Al quaternary amorphous alloy compositions with varying glass-forming ability are developed by an efficient method of proportional mixing of binary eutectics. The critical diameter of the glassy sample is improved from 6 mm for Zr53Cu18.7Ni12Al16.3 to 14 mm for Zr50.7Cu28Ni9Al12.3 by straightforwardly adjusting the eutectic unit's coefficients. The drastic improvement in GFA is attributed to balancing, the chemical affinities of the Zr, Cu, Ni and Al components in the melt prior to solidification which makes the precipitation of competing crystalline phases more difficult. As the glass-forming ability increases, the concentration Of Cu ill the alloys exhibits a same trend. Based on synchrotron radiation high-energy X-ray diffraction analysis and Miracle's structural model, it is envisioned that the substitution of additional Cu Morris for Zr atoms in the investigated alloys stabilizes the efficient cluster packing structure of the amorphous alloys, leading to the pronounced increase ill their glass-forming ability. © 2008, Elsevier Ltd.en_AU
dc.identifier.citationSun, Y. J., Qu, D. D., Huang, Y. J., Liss, K. D., Wei, X. S., Xing, D. W., Qu, D. D., Huang, Y. J., Liss, K. D., Wei, X. S., Xing, D. W., & Shen, J. (2009). Zr-Cu-Ni-Al bulk metallic glasses with superhigh glass-forming ability. Acta Materialia, 57(4), 1290-1299. doi:10.1016/j.actamat.2008.11.007en_AU
dc.identifier.govdoc1272en_AU
dc.identifier.issn1359-6454en_AU
dc.identifier.issue4en_AU
dc.identifier.journaltitleActa Materialiaen_AU
dc.identifier.pagination1290-1299en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.actamat.2008.11.007en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1530en_AU
dc.identifier.volume57en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectMetallic glassesen_AU
dc.subjectAmorphous stateen_AU
dc.subjectSynchrotron radiationen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectStructural modelsen_AU
dc.subjectAlloysen_AU
dc.titleZr-Cu-Ni-Al bulk metallic glasses with superhigh glass-forming ability.en_AU
dc.typeJournal Articleen_AU
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