High-strength Zr-Nb-(Cu,Ni,Al) composites with enhanced plasticity

被引：111
作者：
Das, J [1 ]
Löser, W
Kühn, U
Eckert, J
Roy, SK
Schultz, L
机构：
[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India
[2] IFW Dresden, Inst Met Werkstoffe, D-01171 Dresden, Germany
来源：
APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 26期
关键词：
D O I：
10.1063/1.1587254
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Zr73.5Nb9Cu7Ni1Al9.5 and Zr66.4Nb6.4Cu10.5Ni8.7Al8.0 composites of bcc beta-Zr(Nb) dendrites embedded in a nanocrystalline matrix were prepared by slow cooling from melt. The increase of Nb content from 6.4 to 9 at. % slightly reduces the strength, but considerably improves the plastic elongation under uniaxial compressive loading from epsilon(p)=0.6% to 14.8%. The interaction of strain with dendrites and the nanocrystalline matrix is suggested as origin of the improvement of the mechanical properties. (C) 2003 American Institute of Physics.
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页码：4690 / 4692
页数：3
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  • [1] QUASI-STATIC CONSTITUTIVE BEHAVIOR OF ZR41.25TI13.75NI10CU12.5BE22.5 BULK AMORPHOUS-ALLOYS
    BRUCK, HA
    CHRISTMAN, T
    ROSAKIS, AJ
    JOHNSON, WL
    [J]. SCRIPTA METALLURGICA ET MATERIALIA, 1994, 30 (04): : 429 - 434
  • [2] Metallic glass matrix composite with precipitated ductile reinforcement
    Fan, C
    Ott, RT
    Hufnagel, TC
    [J]. APPLIED PHYSICS LETTERS, 2002, 81 (06) : 1020 - 1022
  • [3] Electrochemical investigations on the bulk glass forming Zr55Cu30Al10Ni5 alloy
    Gebert, A
    Mummert, K
    Eckert, J
    Schultz, L
    Inoue, A
    [J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 1997, 48 (05): : 293 - 297
  • [4] Microstructure controlled shear band pattern formation and enhanced plasticity of bulk metallic glasses containing in situ formed ductile phase dendrite dispersions
    Hays, CC
    Kim, CP
    Johnson, WL
    [J]. PHYSICAL REVIEW LETTERS, 2000, 84 (13) : 2901 - 2904
  • [5] Novel Ti-base nanostructure-dendrite composite with enhanced plasticity
    He, G
    Eckert, J
    Löser, W
    Schultz, L
    [J]. NATURE MATERIALS, 2003, 2 (01) : 33 - 37
  • [6] Stabilization and high strain-rate superplasticity of metallic supercooled liquid
    Inoue, A
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 267 (02): : 171 - 183
  • [7] ZR-AL-NI AMORPHOUS-ALLOYS WITH HIGH GLASS-TRANSITION TEMPERATURE AND SIGNIFICANT SUPERCOOLED LIQUID REGION
    INOUE, A
    ZHANG, T
    MASUMOTO, T
    [J]. MATERIALS TRANSACTIONS JIM, 1990, 31 (03): : 177 - 183
  • [8] Fundamental aspects of bulk metallic glass formation in multicomponent alloys
    Johnson, WL
    [J]. METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS, PTS 1 AND 2, 1996, 225 : 35 - 49
  • [9] ZrNbCuNiAl bulk metallic glass matrix composites containing dendritic bcc phase precipitates
    Kühn, U
    Eckert, J
    Mattern, N
    Schultz, L
    [J]. APPLIED PHYSICS LETTERS, 2002, 80 (14) : 2478 - 2480
  • [10] Effect of crystalline precipitations on the mechanical behavior of bulk glass forming Zr-based alloys
    Leonhard, A
    Xing, LQ
    Heilmaier, M
    Gebert, A
    Eckert, J
    Schultz, L
    [J]. NANOSTRUCTURED MATERIALS, 1998, 10 (05): : 805 - 817
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