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Block body amorphous alloy of Fe-Mo-Y-B system

An amorphous alloy and bulk technology, which is applied in the field of Fe-Mo-Y-B bulk amorphous alloys, can solve the problems of poor soft magnetic properties and lack of amorphous forming ability, and achieves high thermal stability and good mechanical properties. Excellent effect of performance and amorphous forming ability, soft magnetic properties

Inactive Publication Date: 2009-08-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in these reported systems, the Fe-based alloy system with high amorphous formation ability has poor soft magnetic properties, while the alloy system with excellent soft magnetic properties does not have good amorphous formation ability.

Method used

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  • Block body amorphous alloy of Fe-Mo-Y-B system
  • Block body amorphous alloy of Fe-Mo-Y-B system
  • Block body amorphous alloy of Fe-Mo-Y-B system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment adopts blow casting method to prepare the Fe of diameter 2mm 69 Mo 3 Y 6 B 22 Bulk amorphous alloy rods.

[0022] Step 1: Press 99.8% pure Fe and 99.9% pure Mo into Fe 70 Mo 30 (Mass percentage) The proportion is melted evenly by high-frequency electromagnetic induction under the high-purity argon atmosphere with a vacuum background, broken and ultrasonically cleaned in alcohol.

[0023] Step 2: By atomic percent Fe 69 Mo 3 Y 6 B 22 FeMo pre-alloyed, pure Fe with a purity of 99.8%, and Y and single crystal B with a purity of 99.5% were weighed, and arc-melted in an argon atmosphere adsorbed by titanium to obtain a uniformly mixed alloy ingot.

[0024] Step 3: Break the ingot obtained in step 2 into small pieces, and place them in alcohol for ultrasonic cleaning.

[0025] Step 4: Put the small piece of alloy obtained in step 3 into a quartz tube with an open lower end, heat it in a vacuum by induction, and blow the molten alloy liquid into a wat...

Embodiment 2

[0030] This embodiment adopts suction casting method to prepare the Fe of diameter 5.5mm 68 Mo 4 Y 6 B 22 Bulk amorphous alloy rods.

[0031] Step 1: Press 99.8% pure Fe and 99.9% pure Mo into Fe 70 Mo 30 (Mass percentage) The proportion is melted evenly by high-frequency electromagnetic induction under the high-purity argon atmosphere with a vacuum background, broken and ultrasonically cleaned in alcohol.

[0032] Step 2: By atomic percent Fe 68 Mo 4 Y 6 B 22 FeMo pre-alloyed, pure Fe with a purity of 99.8%, and Y and single crystal B with a purity of 99.5% were weighed, and arc-melted in an argon atmosphere adsorbed by titanium to obtain a uniformly mixed alloy ingot.

[0033] Step 3: Break the ingot obtained in step 2 into small pieces, and place them in alcohol for ultrasonic cleaning.

[0034] Step 4: The small alloy obtained in step 3 is arc-melted in an argon atmosphere adsorbed by titanium, and when the alloy is in a completely molten state, it is sucked into...

Embodiment 3

[0038] This embodiment adopts the blow casting method to prepare the thickness is 30 μ m composition is Fe 67 Mo 5 Y 6 B 22 Continuous amorphous strip sample.

[0039] Step 1: Press 99.8% pure Fe and 99.9% pure Mo into Fe 70 Mo 30 (Mass percentage) The proportion is melted evenly by high-frequency electromagnetic induction under the high-purity argon atmosphere with a vacuum background, broken and ultrasonically cleaned in alcohol.

[0040] Step 2: By atomic percent Fe 67 Mo 5 Y 6 B 22 FeMo pre-alloyed, 99.8% pure iron, 99.5% pure Y and single crystal B are weighed, arc-melted in an argon atmosphere adsorbed by titanium, and a uniformly mixed alloy ingot is obtained.

[0041] Step 3: Break the ingot obtained in step 2 into small pieces, and place them in alcohol for ultrasonic cleaning.

[0042] Step 4: Put the small piece of alloy obtained in step 3 into a quartz tube with an open lower end, heat it in a vacuum by induction, and use high-purity argon to blow the mol...

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Abstract

The invention discloses a Fe-Mo-Y-B series bulk amorphous alloy. This series of bulk amorphous alloys contains an amorphous phase with a volume fraction of 50-100%. The chemical formula of the alloy is Fe72-xMoxY6B22, where x is the atomic percentage of Mo element, 72-x is the atomic percentage of Fe element, 1<x< 6. This series of bulk amorphous alloys has a simple composition, containing only four elements, high thermal stability, excellent soft magnetic properties, good mechanical properties and amorphous forming ability.

Description

technical field [0001] The invention relates to the field of amorphous alloys, in particular to Fe-Mo-Y-B series bulk amorphous alloys. Background technique [0002] Amorphous alloys are a new class of alloy materials whose atomic arrangement is not periodic or symmetrical. Due to their special microstructure, they have superior mechanical, physical, chemical and magnetic properties, such as high strength, high hardness, wear resistance, and corrosion resistance, so they have broad application prospects. [0003] After long-term and unremitting efforts by domestic and foreign scientific research scholars, bulk amorphous alloys such as Fe-based, Ni-based, Zr-based, Cu-based, Mg-based, Co-based, Ti-based, and rare earth-based have been developed and prepared (formed completely amorphous Amorphous alloys whose critical dimensions of crystals reach the order of millimeters). Among these systems, Fe-based bulk amorphous alloys possess high mechanical strength and excellent soft...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/02
Inventor 蒋建中黄兴民常振宇
Owner ZHEJIANG UNIV