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A kind of alloy material for mechanical device

A technology for mechanical devices and alloys, which is applied in the field of alloys 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 large-scale production, easy transplantation and operation Effect

Inactive Publication Date: 2016-04-20
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

[0023] Take 20% Fe by weight, 16% Cr, 1.5% Al, 1.2% Ti, 0.8% Zr, 3.0% Nb, 0.005% B (added in the form of boric acid), 0.6% Y (added in the form of yttrium oxide), and the balance is that Ni is added to the vacuum induction furnace for smelting and casting into master alloy ingots;

[0024] Step 2: Homogenize the master alloy ingot at 1150°C for 30 hours;

[0025] Step 3: hot deforming the homogenized master alloy ingot at 1000°C;

[0026] Step 4: The hot-deformed alloy is subjected to solution treatment at 950°C for 4 hours and then air-cooled,

[0027] Then carry out aging treatment at 850° C. for 15 hours and air-cool to obtain the alloy of the present invention.

Embodiment 2

[0029] Take 25% Fe by weight, 18% Cr, 1.5% Al, 1.0% Ti, 0.6% Zr, 4.0% Nb, 0.006% B (added in the form of boric acid), 0.1% Y (added in the form of yttrium oxide), and the balance is that Ni is added to the vacuum induction furnace for smelting and casting into master alloy ingots;

[0030] Step 2: Homogenize the master alloy ingot at 1200°C for 25 hours;

[0031] Step 3: hot deforming the homogenized master alloy ingot at 1150°C;

[0032] Step 4: The hot-deformed alloy is subjected to solution treatment at 1000°C for 3 hours and then air-cooled,

[0033] Then carry out aging treatment at 800° C. for 12 hours and air-cool to obtain the alloy of the present invention.

[0034] The mechanical property (according to GB / T228-2002 standard) and the corrosion rate of the gained alloy of the present invention are shown in the following table:

[0035] No. Tensile strength Rm(Mpa) Yield strength Rp0.2(Mpa) Corrosion rate in 50% sulfuric acid solution at 70°C (mg / cm 2 h...

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Abstract

The invention relates to an alloy material for a mechanical device. The alloy comprises the following components in percentage by weight: 20-25% of Fe, 14-18% of Cr, 1.5-2.0% of Al, 0.7-1.5% of Ti, 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.

Description

technical field [0001] The invention belongs to the technical field of metal materials and metallurgy, and in particular relates to an alloy for mechanical devices and a preparation method thereof. Background technique [0002] Iron-based amorphous alloy strips exhibit excellent soft magnetic properties including: low magnetic loss under AC excitation; enabling applications such as transformers, motors, generators, energy management equipment (which includes pulsed Power generators) and magnetic sensors and other energy-efficient magnetic devices (energyefficientmagneticdevice). In these devices, ferromagnetic materials with high saturation induction and high thermal stability are preferred. Also, in large-scale industrial applications, the ease of manufacture of materials as well as their raw material cost are important factors. Alloys based on amorphous Fe-B-Si meet these requirements mentioned above. However, the saturation induction of these amorphous alloys is smalle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C19/05C22C1/03C22F1/10
Inventor 马修泉安亚君
Owner LIAONING TECHNICAL UNIVERSITY