Preparation, structure and physical properties of Fe-, Co- and Ni-rich melt-quenched ribbons containing Zr or Hf. I: Preparation details and structural characterization
Preparation, structure and physical properties of Fe-, Co- and Ni-rich melt-quenched ribbons containing Zr or Hf. I: Preparation details and structural characterization
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
I. Bakonyi;F. Mehner;M. Rapp;Á. Cziráki;H. Kronmüller;R. Kirchheim
中科院分区：
文献类型：
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作者：
I. Bakonyi;F. Mehner;M. Rapp;Á. Cziráki;H. Kronmüller;R. Kirchheim
采用快淬技术制备了TE = Zr和Hf，TL = Fe、Co或Ni的TE-TL合金薄带，其成分分布在富TL共晶周围（约90 at.% TL-含量）。详细描述了获得宽约3 mm、厚约10 ~ 20 μm的均匀、连续、长（有时超过10 m）薄带的制备条件。除了（a）Zr 9 Ni 91合金在低淬火速率下形成bcc-Ni（Zr）固溶体相和（B）Hf 11 Ni 89合金即使在最高淬火速率下也形成具有纳米晶粒结构的HfNi 5相之外，所有薄带均以非晶态获得，如透射电子显微镜（TEM）研究所揭示的。对于Zr-Fe和Zr-Co玻璃，通过TEM观察到从站点到站点的最近邻距离的波动，这可以归因于化学短程有序的波动。
A melt-spinning technique was used to produce TE-TL alloy ribbons with TE = Zr and Hf and TL = Fe, Co or Ni for compositions around the TL-rich eutectic (about 90 at.% TL-content). A detailed description of the preparation conditions for obtaining homogeneous, continuous, long (in some cases in excess of 10 m) ribbons about 3 mm wide and 10 to 20 μm thick is given. All the ribbons were obtained in an amorphous state as revealed by transmission electron microscopy (TEM) investigations except (a) the Zr 9 Ni 91 alloy forming a bcc-Ni(Zr) solid solution phase at low quench rate and (b) the Hf 11 Ni 89 alloy forming a HfNi 5 phase with nanocrystalline grain structure even at the highest quench rate applied. For the Zr-Fe and Zr-Co glasses, a fluctuation of the nearest-neighbor distances from site to site was observed by TEM that could be ascribed to a fluctuation of the chemical short-range order.