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Fe-Ni metal-based magnetostrictive material and preparation method thereof

A magnetostrictive material, metal-based technology, applied in the preparation of the Fe-Ni metal-based magnetostrictive material, in the field of Fe-Ni metal-based magnetostrictive materials, can solve the problems of poor magnetostriction and achieve magnetostrictive Good expansion and contraction, grain refinement, and overall performance improvement

Inactive Publication Date: 2015-09-30
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to provide a Fe-Ni metal-based magnetostrictive material, which solves the problem of poor magnetostriction of existing metal-based magnetostrictive materials

Method used

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  • Fe-Ni metal-based magnetostrictive material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Step 1: Weigh Fe 25%, Ni 46%, Cr 5%, Ti 2.5%, Si 1.5%, Al 0.5%, Co19.5% powder according to the mass percentage, the sum of the weight percentage of the above components is 100 %;

[0049] Step 2: mixing and pressing the components weighed in step 1;

[0050] The specific method is: put each component into the mold and keep pressing for 28 seconds under 28 tons of pressing;

[0051] Step 3: Smelting the alloy from the raw material after pressing in step 2;

[0052] The specific method is:

[0053] Step 3.1: Vacuumize the raw material after pressing and molding in step 2, and the vacuum degree is 1×10 -3 Pa filled with argon until the pressure in the furnace cavity reaches 5×10 4 Pa;

[0054]Step 3.2: Melting for 2 minutes until all components are completely melted;

[0055] Step 3.3: Turn over and repeat the above steps 3 times to make the components of the alloy evenly distributed to complete the smelting of the alloy;

[0056] Step 4: absorbing and casting the ...

Embodiment 2

[0065] Step 1: Weigh the powder of Fe 30%, Ni 40%, Cr 6%, Ti 2%, Si 2%, Co20% according to mass percentage, and the weight percentage sum of the above-mentioned components is 100%;

[0066] Step 2: mixing and pressing the components weighed in step 1;

[0067] The specific method is: put each component into the mold and keep pressing for 30 seconds under 30 tons of pressing;

[0068] Step 3: Smelting the alloy from the raw material after pressing in step 2;

[0069] The specific method is:

[0070] Step 3.1: Vacuumize the raw material after compression molding in step 2, at a vacuum degree of 2×10 -3 Pa filled with argon until the pressure in the furnace cavity reaches 5×10 4 Pa;

[0071] Step 3.2: Melting for 2.5 minutes until all components are completely melted;

[0072] Step 3.3: Turn over and repeat the above steps 4 times to make the components of the alloy evenly distributed, so as to complete the melting of the alloy;

[0073] Step 4: absorbing and casting the al...

Embodiment 3

[0082] Step 1: Weigh Fe 40%, Ni 36%, Cr 4%, Ti 3%, Si 1%, Al 1%, Co 15% powder according to mass percentage, the sum of the weight percentages of the above-mentioned components is 100%;

[0083] Step 2: mixing and pressing the components weighed in step 1;

[0084] The specific method is: put each component into the mold and keep pressing for 32 seconds under 32 tons of pressing;

[0085] Step 3: Smelting the alloy from the raw material after pressing in step 2;

[0086] The specific method is:

[0087] Step 3.1: Vacuumize the raw material after pressing and molding in step 2, and the vacuum degree is 3×10 -3 Pa filled with argon until the pressure in the furnace cavity reaches 5×10 4 Pa;

[0088] Step 3.2: smelting for 3 minutes until all components are completely melted;

[0089] Step 3.3: Turn over and repeat the above steps 5 times to make the components of the alloy evenly distributed to complete the smelting of the alloy;

[0090] Step 4: absorbing and casting the ...

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Abstract

The invention discloses a Fe-Ni metal-based magnetostrictive material. The Fe-Ni metal-based magnetostrictive material comprises the following components in percentage by weight: 25-42% of Fe, 20-46% of Ni, 4-6% of Cr, 2-3% of Ti, 1-2% of Si, 0-1% of Al, and 0-26% of Co; and the sum of the weight percentages of all the components is 100%. The invention further discloses a preparation method of the Fe-Ni metal-based magnetostrictive material: all the weighed components are mixed, pressed for molding and smelted to an alloy; and then, the alloy is absorbed and cast to an alloy rod for forging, is heated under the vacuum condition, is hotly rolled and polished to eliminate the surface scale, is coldly drawn on a wire drawing machine, and is thermally treated to obtain the Fe-Ni metal-based magnetostrictive material. The preparation method is simple, is high in efficiency, and is convenient for large-scale batch production.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and relates to a Fe-Ni metal-based magnetostrictive material, and also relates to a preparation method of the Fe-Ni metal-based magnetostrictive material. Background technique [0002] Magnetostrictive material refers to a ferromagnetic material whose shape or size changes under the action of an external magnetic field. There are generally three main categories of magnetostrictive materials: first, metals and alloys with magnetostrictive effects, such as nickel-based alloys and iron-based alloys, which have high saturation magnetization, good mechanical properties, and deformability; It is a ferrite (such as Ni-Zn, Ni-Co-Cu, etc.) magnetostrictive material, which has low saturation magnetization, low price and good high-frequency characteristics; the third is rare earth metal represented by Tb-Dy-Fe material Intercompound magnetostrictive materials have much higher magnetostrictive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00
Inventor 陈文革张洋张飞奇
Owner XIAN UNIV OF TECH
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