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Iron-base amorphous alloy, powder material of alloy and wear-resisting anticorrosion coating of alloy

An iron-based amorphous alloy and anti-corrosion coating technology, which is applied in the direction of metal material coating technology, coating, fusion spraying, etc., can solve the problems of unfavorable coating wear resistance, increased raw material cost, human body and environmental damage, etc. , to achieve the effects of improving plasticity and amorphous forming ability, low oxygen content, and good processability

Active Publication Date: 2015-11-25
NINGBO INNOVATION CENT FOR APPLIED MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, rare earth elements will significantly deteriorate the toughness of the alloy, which is not conducive to the wear resistance of the coating, and is expensive; tungsten is a rare high-melting point metal, which is not conducive to smelting or spraying; the extraction of chromium will cause harm to the human body and the environment ; The price of molybdenum element is relatively expensive, which increases the cost of raw materials

Method used

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  • Iron-base amorphous alloy, powder material of alloy and wear-resisting anticorrosion coating of alloy
  • Iron-base amorphous alloy, powder material of alloy and wear-resisting anticorrosion coating of alloy
  • Iron-base amorphous alloy, powder material of alloy and wear-resisting anticorrosion coating of alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In this embodiment, the molecular formula of the iron-based amorphous alloy is Fe 63 Cr 8 Mo 3.5 Ni 5 P 10 B 4 C 4 Si 2.5 .

[0042] The preparation method of the iron-based amorphous alloy powder material is as follows:

[0043] (1) The industrial-grade raw materials Fe, Cr, Ni, Si, FeC, FeP, FeMo, FeB according to the molecular formula Fe 63 Cr 8 Mo 3.5 Ni 5 P 10 B 4 C 4 Si2.5 Raw materials are prepared according to the atomic percentage in the formula, and a master alloy ingot with uniform composition is prepared by using a vacuum induction furnace.

[0044] (2) The obtained master alloy ingot is ground with a grinding wheel to remove surface impurities, and then placed in a vacuum atomization device to obtain iron-based amorphous alloy powder. As a comparison, the iron-based amorphous alloy strip was obtained by passing the obtained master alloy ingot through a single-roller stripping method.

[0045] The scanning electron microscope picture of the a...

Embodiment 2

[0054] In this embodiment, the molecular formula of the iron-based amorphous alloy is Fe 61 Cr 10 Mo 3.5 Ni 5 P 10 B 4 C 4 Si 2.5 .

[0055] The preparation method of the iron-based amorphous alloy powder material is basically the same as the method for preparing the powder material in Example 1, the difference is that according to the molecular formula Fe 61 Cr 10 Mo 3.5 Ni 5 P 10 B 4 C 4 Si 2.5 Atomic percentages in the preparation of raw materials.

[0056] Same as Example 1, the alloy powder prepared above is nearly spherical, the particle size distribution is below 50 μm, and has good fluidity; the X-ray diffraction pattern of the amorphous alloy powder shows that the powder has a completely amorphous structure.

[0057] Supersonic flame spraying technology was used to prepare an iron-based amorphous alloy coating on the surface of the 45 steel substrate by using the amorphous alloy powder prepared above. The preparation process parameters were: oxygen flow...

Embodiment 3

[0061] In this embodiment, the molecular formula of the iron-based amorphous alloy is Fe 59 Cr 12 Mo 3.5 Ni 5 P 10 B 4 C 4 Si 2.5 .

[0062] The preparation method of the iron-based amorphous alloy powder material is basically the same as the method for preparing the powder material in Example 1, the difference is that according to the molecular formula Fe 59 Cr 12 Mo 3.5 Ni 5 P 10 B 4 C 4 Si 2.5 Atomic percentages in the preparation of raw materials.

[0063] Same as Example 1, the alloy powder prepared above is nearly spherical, the particle size distribution is below 50 μm, and has good fluidity; the X-ray diffraction pattern of the amorphous alloy powder shows that the powder has a completely amorphous structure.

[0064] Supersonic flame spraying technology was used to prepare iron-based amorphous alloy coating on the surface of 45 steel substrate by using the above-mentioned amorphous alloy powder. The preparation process parameters were: oxygen flow rate ...

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Abstract

The invention provides an iron-base amorphous alloy. The chemical formula of the iron-base amorphous alloy is FeaCrbNicModPeCfBgSih, wherein a, b, c, d, e, f, g and h are molar contents of corresponding atoms, b is larger than or equal to 5 and smaller than or equal to 15, c is larger than or equal to 2 and smaller than or equal to 15, d is larger than or equal to 2 and smaller than or equal to 8, e is larger than or equal to 6 and smaller than or equal to 12, f is larger than or equal to 2 and smaller than or equal to 6, g is larger than or equal to 3 and smaller than or equal to 6, h is larger than or equal to 1 and smaller than or equal to 5, and the balance is iron. According to the chemical formula, compounding and smelting are carried out to obtain an ingot casting; then, resmelting is carried out, and through vacuum spraying and cooling, a powder material of the iron-base amorphous alloy is obtained. By means of the supersonic speed flame spraying technology, the iron-base amorphous alloy powder is sprayed to the surface of a base body to prepare an iron-base amorphous alloy coating. The coating is high in amorphous content, low in porosity and oxygen content and high in diamond pyramid hardness and has the good wear-resisting anticorrosion performance and has the wide application prospect in fields of energy, chemical engineering, national defense, aerospace, ships and the like.

Description

technical field [0001] The invention belongs to the technical field of surface engineering, and in particular relates to an iron-based amorphous alloy with high amorphous forming ability, its powder material and a wear-resistant and anti-corrosion coating prepared by using the powder material. Background technique [0002] In the fields of energy, chemical industry, national defense, aerospace and shipbuilding, some equipment components operate under high temperature, oxidation, high temperature corrosion and mechanical wear for a long time at full load, which makes these equipment components extremely vulnerable to corrosion and wear. , the annual economic loss is as high as several billion yuan. How to improve the performance of these devices and prolong their service life has become the most urgent problem to be solved in the above-mentioned industries to improve the economic benefits of enterprises and enhance their core competitiveness. [0003] Spraying a metal coatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02B22F9/08B22F1/00C23C4/06C23C4/12
Inventor 黎嘉威常春涛马浩然董亚强满其奎王新敏李润伟
Owner NINGBO INNOVATION CENT FOR APPLIED MAGNETICS CO LTD
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