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A kind of multi-element alloy material for mechanical device and preparation method thereof

A technology of mechanical devices and multi-element alloys, which is applied in the field of multi-element alloy materials for mechanical devices and its preparation, can solve the problems of high price of alloy materials and restrictions on the application of high-rare-earth alloys, and achieve high cost performance, easy mass production, and easy transplantation and the effect of the operation

Active Publication Date: 2015-11-18
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the addition of a large amount of rare earth elements can greatly increase the strength of the alloy, the price of the alloy material is relatively high, and the application of high rare earth alloys is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Multi-component alloy materials for mechanical devices, the composition of which is: Mg20%, Cr16%, Mo1.5%, Al1.2%, Zr0.8%, Nb3.0%, B0.005%, Y0.6%, The balance is Ni.

[0027] (1) According to the mass percentage: Mg20%, Cr16%, Mo1.5%, Al1.2%, Zr0.8%, Nb3.0%, B0.005%, Y0.6%, the balance is Ni for batching, Wherein B is added in the form of boric acid, and Y is added in the form of yttrium oxide;

[0028] (2) Put the above-mentioned raw materials in a vacuum intermediate frequency melting furnace to melt to form an alloy melt. After the superheated temperature of the melt reaches 280°C, spray an inert gas into the vacuum intermediate frequency melting furnace through a guide tube as an atomizing gas to control the spraying distance It is 300mm, and the rotational speed of the deposition disk is 30rpm. Spray forming is carried out, and an alloy material ingot for mechanical devices is obtained on the deposition disk. The tensile strength Rm is 1876MPa, and the yield stren...

Embodiment 2

[0035] Multi-component alloy materials for mechanical devices, the composition of which is: Mg25%, Cr18%, Mo2.0%, Al0.7%, Zr0.4%, Nb5.0%, B0.006%, Y0.1%, The balance is Ni.

[0036] (1) According to the mass percentage: Mg25%, Cr18%, Mo2.0%, Al0.7%, Zr0.4%, Nb5.0%, B0.006%, Y0.1%, the balance is Ni for batching, Wherein B is added in the form of boric acid, and Y is added in the form of yttrium oxide;

[0037](2) Put the above-mentioned raw materials in a vacuum intermediate frequency melting furnace to melt to form an alloy melt. After the superheated temperature of the melt reaches 300°C, spray an inert gas into the vacuum intermediate frequency melting furnace through a guide tube as an atomizing gas to control the spraying distance It is 400mm, and the rotational speed of the deposition disc is 40rpm. Spray forming is carried out, and an alloy material ingot for mechanical devices is obtained on the deposition disc. The tensile strength Rm is 1911MPa, and the yield streng...

Embodiment 3

[0044] Multi-component alloy materials for mechanical devices, the composition of which is: Mg22%, Cr14%, Mo1.8%, Al1.5%, Zr1.0%, Nb5.00.1%, B0.006%, Y0.1%, The balance is Ni.

[0045] (1) According to the mass percentage: Mg22%, Cr14%, Mo1.8%, Al1.5%, Zr1.0%, Nb5.00.1%, B0.006%, Y0.1%, the balance is Ni for batching, Wherein B is added in the form of boric acid, and Y is added in the form of yttrium oxide;

[0046] (2) Put the above-mentioned raw materials in a vacuum intermediate frequency melting furnace to melt to form an alloy melt. After the superheated temperature of the melt reaches 200°C, spray an inert gas into the vacuum intermediate frequency melting furnace through a guide tube as an atomizing gas to control the spraying distance It is 400mm, and the rotational speed of the deposition disk is 35rpm. Spray forming is carried out, and an alloy material ingot for mechanical devices is obtained on the deposition disk. The tensile strength Rm is 1826MPa, and the yield...

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Abstract

The invention belongs to the technical fields of metal materials and metallurgy, and particularly relates to a multicomponent alloy material for a mechanical device and a preparation method thereof. The multicomponent alloy material for the mechanical device comprises the following components in percentage by weight: 20%-25% of Mg, 14%-18% of Cr, 1.5%-2.0% of Mo, 0.7%-1.5% of Al, 0.4%-1.0% of Zr, 0.1%-5.0% of Nb, less than 0.01% of B, less than 0.8% of Y and the balance of Ni. The preparation method comprises the following steps: firstly blending according to a component proportion; placing raw materials into a vacuum intermediate-frequency smelting furnace for smelting to form an alloy fusant; after the superheat temperature of the alloy fusant reaches 200-300 DEG C, spraying an inert gas as an atomized gas into the vacuum intermediate-frequency smelting furnace through a flow guide pipe for spray forming to obtain an alloy material ingot blank for the mechanical device on a sedimentation disc, wherein the tensile strength Rm of the alloy material ingot blank is 1826-1911 MPa, the yield strength Rp0.2 of the alloy material ingot blank is 1700-1790 MPa. Compared with other alloys for the mechanical device, the alloy for the mechanical device, which is disclosed by the invention, has the advantages of less rare earth element, available used raw materials, low cost, high performance cost ratio and easiness for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of metal materials and metallurgy, and in particular relates to a multi-element alloy material for mechanical devices and a preparation method thereof. Background technique [0002] With the development of modern industry, the performance requirements of mechanical products are getting higher and higher in the production process. The long-term stable operation of products under high parameters (such as high temperature, high pressure, high speed, etc.) Higher requirements are put forward for strength, wear resistance and corrosion resistance. All kinds of mechanical equipment, instruments and meters, metal parts in metallurgical parts, and various tools and molds are often damaged and invalidated from the surface during use. A large part of the reason for the damage is caused by surface wear. Therefore, as long as the surface of the part is strengthened, the performance requirements can be met. The surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C19/05C22C1/02
Inventor 柴博李建辉孙远敬刘涛刘芮葭于宁崔宁徐建新沈潇
Owner LIAONING TECHNICAL UNIVERSITY