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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Influence of production method on the magnetic parameters and structure of Fe_(61)Co_(10)Y_8Nb_1B_(20) amorphous alloys in the as-quenched state
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Influence of production method on the magnetic parameters and structure of Fe_(61)Co_(10)Y_8Nb_1B_(20) amorphous alloys in the as-quenched state

机译：制备方法对淬火态Fe_（61）Co_（10）Y_8Nb_1B_（20）非晶态合金的磁性参数和组织的影响

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摘要

In this paper, the influence of production method on the basic magnetic properties and structure of amorphous alloys, in the forms of ribbons and plates, was investigated. The samples used in the investigations were obtained by three different production methods: ultrafast cooling of the liquid alloy on a rotating copper wheel (the melt-spinning method), and the injection or suction of the molten alloy into a water-cooled copper die injection- and suction-casting, respectively. The structure of the resulting samples of Fe_(61)Co_(10)Y_8Nb_1B_(20) alloy was investigated by means of X-ray diffractometry, Mossbauer spectroscopy and scanning electron microscopy. The results of the microstructural investigations confirmed that the obtained samples were amorphous and without crystalline precipitations. The images from the scanning electron microscope were typical for amorphous materials. Magnetic measurements were performed using a vibrating sample magnetometer (VSM) using magnetic fields of up to 2 T. The highest value of the saturation magnetization was achieved for the sample which was in the form of a ribbon. The values of this parameter for the samples which were in the form of plates were similar to each other, regardless of the production method. The values of the coercivity showed much greater differences, depending on the production method. The smallest value of coercivity was found for the sample in plate-form obtained by injection-casting; this is connected with the highest value of structural relaxation in the investigated material.
机译：本文研究了生产方法对带状和板状非晶态合金的基本磁性能和结构的影响。用于研究的样品是通过三种不同的生产方法获得的：在旋转的铜轮上对液态合金进行超快冷却（熔融纺丝法），以及将熔融合金注入或抽吸到水冷式铜模注射中-和吸铸。通过X射线衍射法，莫斯鲍尔光谱法和扫描电子显微镜研究了Fe_（61）Co_（10）Y_8Nb_1B_（20）合金样品的结构。显微组织研究的结果证实，所获得的样品是无定形的并且没有结晶沉淀。扫描电子显微镜的图像是非晶材料的典型图像。使用振动样品磁力计（VSM），使用高达2 T的磁场进行磁性测量。样品呈带状，达到了饱和磁化强度的最大值。无论采用何种生产方法，对于平板形式的样品，此参数的值彼此相似。矫顽力值显示出更大的差异，具体取决于生产方法。通过注射铸造得到的板状样品的矫顽力最小。这与被研究材料中结构松弛的最高值有关。

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