Non-equilibrium alloy phase formation and transformation driven by ion beam mixing in the Fe-Hf-Nb multilayers

被引：3
作者：
Li Nan [1 ]
Wang TongLe [1 ]
Ding Ning [1 ]
Dai Ye [1 ]
Bai Xue [1 ]
Liu BaiXin [1 ]
机构：
[1] Tsinghua Univ, Adv Mat Lab, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
来源：
SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2012年 / 55卷 / 03期
基金：
中国国家自然科学基金;
关键词：
phase transformation; ion beam mixing; amorphous phase; Fe-Hf-Nb system; shearing mechanism; GLASS-FORMING ABILITY; METALLIC GLASSES; MOLECULAR-DYNAMICS; POSITIVE HEAT; SYSTEM; IRRADIATION; RANGE;
D O I：
10.1007/s11431-011-4608-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the ion beam mixing experiments, eight Fe-Hf-Nb multilayered films, with overall compositions of Fe67Hf22Nb11, Fe67Hf11Nb22, Fe54Hf38Nb8, Fe54Hf30Nb16, Fe54Hf11Nb35, Fe25Hf67Nb8, Fe25Hf50Nb25 and Fe25Hf11Nb64, were irradiated by 200 keV xenon ions to doses ranging from 3x10(14) Xe+/cm(2) to 7x10(15) Xe+/cm(2). The results showed that unique amorphous phases were obtained at designed alloy compositions, falling in the favored glass-forming region deduced from three binary metal sub-systems. Interestingly, at some alloy compositions, the crystal-amorphous-crystal transformations were observed back and forth while varying the irradiation doses. In addition, at the alloy composition of Fe25Hf67Nb8, a metastable FCC phase was formed through an HCP-FCC structural phase transformation and it had a large lattice constant identified to be a=4.51 angstrom. Besides, the formation mechanism of non-equilibrium alloy phases was also discussed in terms of thermodynamics of solids and atomic collision theory.
引用
收藏
页码：640 / 645
页数：6
相关论文
共 32 条
  • [1] Metallic glasses as structural materials
    Ashby, MF
    Greer, AL
    [J]. SCRIPTA MATERIALIA, 2006, 54 (03) : 321 - 326
  • [2] Proposed Long-Range Empirical Potential To Study the Metallic Glasses in the Ni-Nb-Ta System
    Dai, Y.
    Li, J. H.
    Che, X. L.
    Liu, B. X.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2009, 113 (20) : 7282 - 7290
  • [3] ATOMIC SIZE EFFECT ON THE FORMABILITY OF METALLIC GLASSES
    EGAMI, T
    WASEDA, Y
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1984, 64 (1-2) : 113 - 134
  • [4] METALLIC GLASSES
    GREER, AL
    [J]. SCIENCE, 1995, 267 (5206) : 1947 - 1953
  • [5] HUANG LJ, 1987, NUCL INSTRUM METH B, V18, P256
  • [6] METASTABLE PHASES FORMED BY ION MIXING IN THE HF-NB SYSTEM WITH A POSITIVE HEAT OF FORMATION
    JIN, O
    YE, Y
    LIU, BX
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1995, 7 (41) : 7959 - 7967
  • [7] NONEQUILIBRIUM SOLID-PHASES FORMED BY ION MIXING IN THE ZR-NB SYSTEM WITH POSITIVE HEAT OF FORMATION
    JIN, O
    LIU, BX
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1994, 6 (06) : L39 - L42
  • [8] NON-CRYSTALLINE STRUCTURE IN SOLIDIFIED GOLD-SILICON ALLOYS
    KLEMENT, W
    WILLENS, RH
    DUWEZ, P
    [J]. NATURE, 1960, 187 (4740) : 869 - 870
  • [9] PREPARATION OF AMORPHOUS NI60NB40 BY MECHANICAL ALLOYING
    KOCH, CC
    CAVIN, OB
    MCKAMEY, CG
    SCARBROUGH, JO
    [J]. APPLIED PHYSICS LETTERS, 1983, 43 (11) : 1017 - 1019
  • [10] ABINITIO MOLECULAR-DYNAMICS FOR LIQUID-METALS
    KRESSE, G
    HAFNER, J
    [J]. PHYSICAL REVIEW B, 1993, 47 (01): : 558 - 561
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