Formation of nanocrystals by crystallization of amorphous Fe-Si-B based alloys

被引：2
|
作者：
Mattern, N
Müller, M
机构：
[1] Inst Festkorper & Werkstofforsch Dresden, DE-01171 Dresden, Germany
[2] Tech Univ Dresden, Inst Werkstoffwissensch, DE-01069 Dresden, Germany
来源：
EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2 | 2000年 / 321-3卷
关键词：
amorphous Fe-Si-B alloys; crystallization; nanocrystalline iron;
D O I：
10.4028/www.scientific.net/MSF.321-324.694
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The crystallization of amorphous Fe-Si-B based alloys was investigated by means of X-ray diffraction, DSC, and transmission electron microscopy. Crystallization temperatures, phase sequences, and the microstructures of the phases formed are strongly influenced by the chemical composition. In the case of amorphous Fe76.5-xSi15.5B7 Cu1Nbx a reduction of the crystallite size down to 15 nm is found to depend on the Nb content. XRD values of the mean crystallite size calculated from the analysis of line broadening agree well with the TEM results. From in situ XRD observations at high temperature kinetic parameters of the crystallization process could be estimated. The amorphous phase changes its composition due to the primary crystallization and acts, enriched with Nb and B, acts as a diffusion barrier leading to a nanostructured state.
引用
收藏
页码：694 / 699
页数：6
相关论文
共 50 条
  • [21] Local ordering model in Fe-Si-B amorphous alloys
    Matko, I
    Illekova, E
    Svec, P
    Duhaj, P
    Czomorova, K
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 226 : 280 - 284
  • [22] Local ordering model in Fe-Si-B amorphous alloys
    Mat'ko, I.
    Illekova, E.
    Svec, P.
    Duhaj, P.
    Czomorova, K.
    Materials Science and Engineering A, 1997, A226-22 : 280 - 284
  • [23] Changes in the thermodynamic properties of amorphous Fe-Si-B alloys caused by low-temperature crystallization
    Goryacheva, VI
    Kutsenok, IB
    Tomilin, IA
    Geiderikh, VA
    ZHURNAL FIZICHESKOI KHIMII, 1998, 72 (12): : 2151 - 2154
  • [24] Investigation of the crystallization process of nanocrystalline Fe-Si-B alloys by SAXS
    Kohlbrecher, J
    Wiedenmann, A
    Wollenberger, H
    Mattern, N
    Goerigk, G
    NANOSTRUCTURED MATERIALS, 1995, 6 (1-4): : 449 - 452
  • [25] OXIDATION BEHAVIOR OF AMORPHOUS Fe-Si-B AND Fe-Cr-Si-B ALLOYS.
    Taniguchi, Shigeji
    Shibata, Toshio
    Yasuda, Hiroshi
    1600, (35):
  • [26] MAGNETIC AND STRUCTURAL-PROPERTIES OF AMORPHOUS FE-SI-B ALLOYS
    KOPCEWICZ, M
    DMOWSKI, W
    RATKIEWICZ, B
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1985, 51 (1-3) : 218 - 224
  • [27] Phase transformations during the heating of Fe-Si-B amorphous alloys
    Hryhoryeva, O
    Belous, M
    Sidorenko, S
    DIFFUSION IN MATERIALS: DIMAT 2004, PTS 1 AND 2, 2005, 237-240 : 1205 - 1209
  • [28] The structure and mechanical properties of amorphous and nanocrystalline Fe-Si-B alloys
    Sypien, A.
    Kusinski, J.
    JOURNAL OF MICROSCOPY-OXFORD, 2006, 224 : 111 - 113
  • [29] FE-SI-B AMORPHOUS-ALLOYS WITH HIGH SILICON CONCENTRATION
    INOUE, A
    KOMURO, M
    MASUMOTO, T
    JOURNAL OF MATERIALS SCIENCE, 1984, 19 (12) : 4125 - 4132
  • [30] Estimation of the thermodynamic stability of amorphous alloys Fe-Si-B and Co-Si-B
    Moscow Lomonosov State Univ, Moscow, Russia
    Ber Bunsenges Phys Chem Chem Phys, 9 (1116-1122):
12345