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Applied Physics Letters / Volume 76 / Issue 8 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 76, 967 (2000); http://dx.doi.org/10.1063/1.125907 (3 pages)

Ductile quasicrystalline alloys

A. Inoue1, T. Zhang1, M. W. Chen1, T. Sakurai1, J. Saida2, and M. Matsushita2

1Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
2Inoue Superliquid Glass Project, ERATO, Japan Science and Technology Corporation (JST), Sendai 982-0807, Japan

(Received 7 October 1999; accepted 20 December 1999)

An icosahedral (I) quasicrystalline phase with a grain size below 40 nm was formed as a metastable phase in crystallization of the bulk glassy Zr65Al7.5Cu17.5−xNi10Mx (M=Ag, Pd, Au, or Pt; x = 5 and 10 at %) alloys. The volume fraction (Vf) of the I phase is about 85% for the 5% M alloy and nearly 100% for the 10% M alloy. The I phase changes to Zr2Cu+Zr2Ni+Zr2Al3 in a fully annealed state. Compressive fracture strength (σc,f) and fracture elongation (ϵc,f) of the 10% Pd cylinder with a diameter of 2 mm are respectively 1640 MPa and 2.2% for the glassy phase and increase to 1830 MPa and 3.1% for the I phase. The increase in σc,f is due to the suppression effect of the I particles against the shear deformation of the intergranular glassy phase, and the increase in ϵc,f results from the localization effect of deformation into the glassy layer. The precipitation of the I phase implies that the glassy alloys include randomly oriented I configurations. The present work shows promise for the new class of high-strength nanoquasicrystalline materials. © 2000 American Institute of Physics.

© 2000 American Institute of Physics

EDITORIALLY RELATED

  1. Retraction: “Ductile quasicrystalline alloys” [Appl. Phys. Lett. 76, 967 (2000)]
    A. Inoue et al.
    Appl. Phys. Lett. 98, 259902 (2011)APPLAB000098000025259902000001

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KEYWORDS and PACS

Keywords

silver alloys, palladium alloys, gold alloys, platinum alloys, zirconium alloys, aluminium alloys, copper alloys, nickel alloys, quasicrystals, ductile fracture, compressive strength, fracture toughness, shear deformation, precipitation, nanostructured materials

PACS

  • 62.20.M-

    Structural failure of materials

  • 81.40.Np

    Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure

  • 61.44.Br

    Quasicrystals

  • 62.20.F-

    Deformation and plasticity

  • 81.40.Lm

    Deformation, plasticity, and creep

  • 64.75.-g

    Phase equilibria

  • 61.46.-w

    Structure of nanoscale materials

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.125907

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    U. Köster, J. Meinhardt, S. Roos, and H. Liebertz, Appl. Phys. Lett. 69, 179 (1996)APPLAB000069000002000179000001.

    L. Q. Xing, J. Eckert, W. Löser, and L. Schultz, Appl. Phys. Lett. 73, 2110 (1998)APPLAB000073000015002110000001.

    M. W. Chen, T. Zhang, A. Inoue, A. Sakai, and T. Sakurai, Appl. Phys. Lett. 75, 1697 (1999)APPLAB000075000012001697000001.

    P. H. Ebert, M. Feuerbacher, N. Tamura, M. Wollgarten, and K. Urban, Phys. Rev. Lett. 77, 3827 (1996).


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