Determination of atomic sites of Nb dissolved in metastable Fe23B6 phase : Bulk amorphous, nano-crystalline and nano-quasicrystalline alloys IV

Takahiro Nakamura, H. Koshiba, M. Imafuku, A. Inoue, E. Matsubara
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引用次数: 15

Abstract

The primary metastable phase in the Fe 70 Nb 10 B 20 amorphous alloy is the complex fcc Fe 23 B 6 phase with a large lattice parameter. The atomic site of Nb atoms in this metastable phase was determined by the anomalous X-ray scattering (AXS) method. Nb atoms in the metastable phase located at the similar position expected in the local structural unit in the amorphous state. Thus, the precipitation of the metastable phase does not require long-distance diffusion of Nb atoms in the amorphous matrix.
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铌在亚稳Fe23B6相中原子位置的测定:大块非晶、纳米晶和纳米准晶合金IV
fe70nb 10b20非晶合金的初亚稳相是具有大晶格参数的复杂fcc fe23b6相。用异常x射线散射(AXS)方法确定了Nb原子在亚稳相中的原子位置。亚稳相的Nb原子在非晶态的局部结构单元中所处的位置与预期的相似。因此,亚稳相的析出不需要Nb原子在非晶基体中的远距离扩散。
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