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Ni-based high-temperature alloy surface boronizing agent and use method thereof

A technology of superalloy and boronizing agent, applied in metal material coating process, coating, solid diffusion coating and other directions, can solve the problems of thin infiltration layer, easy to fall off, etc., to achieve large infiltration layer depth, firm infiltration layer, Clean up easy effects

Active Publication Date: 2014-08-06
SHENYANG BLOWER GRP GEAR COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the surface boronizing of Ni-based superalloy materials, the boronizing agent and process commonly used in steel cannot meet the boronizing requirements for the quality of the alloy layer, and the layer is often thin and easy to fall off.

Method used

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  • Ni-based high-temperature alloy surface boronizing agent and use method thereof
  • Ni-based high-temperature alloy surface boronizing agent and use method thereof
  • Ni-based high-temperature alloy surface boronizing agent and use method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The boronizing agent is composed of amorphous boron powder, activator and filler; among them, the activator is sodium fluoroaluminate and cerium oxide; the filler is silicon carbide. Each of the above-mentioned substances is a powder, and the above-mentioned respective powder substances are uniformly mixed.

[0025] The boronizing agent is calculated by weight percentage, 5% of 95% (mass) amorphous boron powder (molecular formula B), 5% sodium fluoroaluminate (molecular formula Na3SiF, Na3AlF6), 2% cerium oxide (molecular formula Ce 2 o 3 ) and 88% silicon carbide (molecular formula SiC).

[0026] Boronizing treatment on the surface of alloy GH4169 using the above boronizing agent: (see figure 2 )

[0027] The boronized surface of the superalloy sample is processed to a roughness of 3.2 in a conventional manner (such as surface polishing and deburring of the workpiece with a fluid viscoelastic material (composed of polymer carriers and abrasives)), and then Wash wi...

Embodiment 2

[0033] The boronizing agent is composed of amorphous boron powder, activator and filler; among them, the activator is sodium fluoroaluminate and cerium oxide; the filler is silicon carbide. Each of the above-mentioned substances is a powder, and the above-mentioned respective powder substances are uniformly mixed.

[0034] The boronizing agent is calculated by weight percentage, 6% of 95% (mass) amorphous boron powder (molecular formula B), 6% sodium fluoroaluminate (molecular formula Na3SiF, Na3AlF6), 3% cerium oxide (molecular formula Ce 2 o 3 ) and 85% silicon carbide (molecular formula SiC).

[0035] Boronizing treatment on the surface of alloy GH4169 using the above boronizing agent: (see figure 2 )

[0036] The boronized surface of the superalloy sample is processed to a roughness of 3.2 in a conventional manner (such as surface polishing and deburring of the workpiece with a fluid viscoelastic material (composed of polymer carriers and abrasives)), and then Wash wi...

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PUM

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Abstract

The invention belongs to the field of material surface modification and relates to a Ni-based high-temperature alloy surface boronizing agent and a use method thereof. The Ni-based high-temperature alloy surface boronizing agent comprises amorphous boron powder, activators and a filler according to a certain ratio, wherein the activators comprise sodium fluoroaluminate and cerium oxide and the filler is silicon carbide. Through use of a high-temperature boronizing technology and the Ni-based high-temperature alloy surface boronizing agent, Ni-based high-temperature alloy surface boronizing layer depth, hardness and uniformity are improved and brittleness is reduced. The boronizing layer has depth more than 0.1mm and hardness more than Hv1900 and is uniform and firm.

Description

technical field [0001] The invention belongs to the field of material surface modification, in particular to a surface boronizing agent for a Ni-based superalloy and a method for using the same. Background technique [0002] The material surface boronizing technology greatly improves the surface hardness of the material, thereby enhancing the wear resistance of the material surface, and is widely used in mechanical parts with wear-resistant requirements. For the surface boronizing of Ni-based superalloy materials, the boronizing agent and process commonly used in steel cannot meet the boronizing requirements for the quality of the alloy layer, and the layer is often thin and easy to fall off. Contents of the invention [0003] The object of the present invention is to provide a surface boronizing agent for a Ni-based superalloy and a method for using the same. [0004] To achieve the above object, the technical solution adopted in the present invention is: [0005] A sur...

Claims

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Application Information

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IPC IPC(8): C23C8/68
Inventor 孟冬梅
Owner SHENYANG BLOWER GRP GEAR COMPRESSOR
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