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FeZrYB series massive amorphous alloy with excellent soft magnetic property and preparation method thereof

An amorphous alloy and soft magnetic technology, which is applied in the field of FeZrYB bulk amorphous alloy and its preparation, can solve problems such as non-magnetism, and achieve the effect of expanding the application field, overcoming the complex and simple processing technology.

Inactive Publication Date: 2008-02-13
SHANGHAI UNIV
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Problems solved by technology

However, Fe-based amorphous alloys with large sizes are generally non-magnetic

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  • FeZrYB series massive amorphous alloy with excellent soft magnetic property and preparation method thereof

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Embodiment 1

[0020] The composition (atomic percentage) of the FeZrYB bulk amorphous alloy in this embodiment is: Fe 73%, Zr 2%, Y 4%, B 21%. The preparation process and steps are as follows: prepare 20 grams of industrial pure metal raw materials Fe, Zr, Y and FeB alloy according to the FeZrYB series bulk amorphous alloy composition of this embodiment, and then use a vacuum non-consumable electric arc furnace under argon protection Carry out smelting, the smelting current density is 150A / cm 2 , the alloy was smelted repeatedly for 4 times; the copper mold negative pressure suction casting method was used to cast, and a large amorphous alloy with a size of 1mm×10mm×80mm was obtained. The magnetic properties of the FeZrYB bulk amorphous alloy prepared in this example were measured at room temperature, as shown in Figure 1 . As can be seen from the accompanying drawings, the FeZrYB series bulk amorphous alloy of the present invention has very excellent magnetic properties, and the saturatio...

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Abstract

The invention relates to a FeZrYB series bulk amorphous alloy with excellent soft magnetic properties and a preparation method thereof. The alloy composition (atomic percentage) of the present invention is: Fe 63-83%, Zr 0.5-6%, Y 2-8%, B 13-27%. The preparation process of the alloy is as follows: the industrial pure metal raw material and FeB are mixed according to the alloy formula, and the vacuum non-consumable electric arc furnace is used for multiple smelting, and the copper mold negative pressure suction casting method is used to cast the bulk amorphous alloy. The bulk amorphous alloy of the invention has excellent soft magnetic properties, and the saturation magnetization is 1.1T. The bulk amorphous alloy of the invention can be widely used in magnetic devices in the fields of information, communication, computer and the like.

Description

technical field [0001] The invention relates to a FeZrYB series bulk amorphous alloy with excellent soft magnetic properties and a preparation method thereof, belonging to the technical field of magnetic alloy materials and processing techniques. Background technique [0002] Amorphous alloys are also called glassy alloys. In 1960, Duwez et al. used the method of rapid cooling of molten metal to obtain Au for the first time. 70 Si 30 Alloy thin strips, thus setting off a research upsurge in the preparation of amorphous materials by rapid cooling. In 1969, Pond invented the single-roll method to prepare amorphous thin strips up to tens of meters, laying the foundation for its industrialization. During the preparation of amorphous alloys, because of the need for very high cooling rates (10 5 K / s or more) make its size very limited, and only very thin or thin strips and filamentous amorphous alloys can be obtained. This limits the practical application of amorphous alloys....

Claims

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Application Information

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IPC IPC(8): C22C45/02H01F1/153C22C33/04B22D18/00
Inventor 谭晓华徐晖白琴蒙韬
Owner SHANGHAI UNIV
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