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Fe-based alloy and WC/TiC/TaC/Re composite powder formula, Fe-based alloy and WC/TiC/TaC/Re composite coating and preparation process of Fe-based alloy and WC/TiC/TaC/Re composite coating

A composite powder and composite coating technology, applied in the direction of metal material coating process, coating, etc., can solve the problems of easy oxidation and burnout, easy generation of pores, limited application, etc., to improve service life, low cost, resistance to Excellent wear performance and corrosion resistance

Inactive Publication Date: 2019-07-12
MIN OF WATER RESOURCES HANGZHOU MACHINERY DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, iron-based alloys have disadvantages such as easy cracking, easy oxidation and burning, and easy generation of pores in the laser cladding process, which limits their industrial application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: A Fe-based alloy WC / TiC / TaC / Re composite powder

[0034] An Fe-based alloy WC / TiC / TaC / Re composite material mainly includes the following components by weight: 75 parts of Fe-based alloy powder, 12 parts of WC powder, 6 parts of TiC powder, 6 parts of TaC powder, and 1 part of Re powder share. The average particle size of Fe powder is 100μm, Re powder (CeO 2 ) has an average particle size of 60nm, and other powders have an average particle size of 5 μm. The main components of the Fe-based alloy powder are in parts by weight: 57 parts of Fe, 30 parts of Cr, 5 parts of Ni, 5 parts of Mo, 1 part of C, and 2 parts of Si.

Embodiment 2

[0035]Example 2: A Fe-based alloy WC / TiC / TaC / Re composite powder

[0036] An Fe-based alloy WC / TiC / TaC / Re composite material mainly includes the following components by weight: 72 parts of Fe-based alloy powder, 12 parts of WC powder, 7 parts of TiC powder, 7 parts of TaC powder, and 2 parts of Re powder share. The average particle size of Fe powder is 130 μm, Re powder (CeO 2 ) has an average particle size of 55nm, and other powders have an average particle size of 8μm. The main components of the Fe-based alloy powder are in parts by weight: 63 parts of Fe, 22 parts of Cr, 4 parts of Ni, 7 parts of Mo, 2 parts of C, and 2 parts of Si.

Embodiment 3

[0037] Example 3: A Fe-based alloy WC / TiC / TaC / Re composite powder

[0038] An Fe-based alloy WC / TiC / TaC / Re composite material mainly includes the following components by weight: 81.5 parts of Fe-based alloy powder, 5 parts of WC powder, 7 parts of TiC powder, 5 parts of TaC powder, and 1.5 parts of Re powder share. The average particle size of Fe powder is 120μm, Re powder (CeO 2 and La 2 o 3 Mixture, weight ratio 1:1) has an average particle size of 40nm, and other powders have an average particle size of 3μm. The main components of the Fe-based alloy powder are in parts by weight: 64 parts of Fe, 26 parts of Cr, 3 parts of Ni, 5 parts of Mo, 1 part of C, and 1 part of Si.

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Abstract

The invention discloses a Fe-based alloy and WC / TiC / TaC / Re composite powder formula, a Fe-based alloy and WC / TiC / TaC / Re composite coating and a preparation process of the Fe-based alloy and WC / TiC / TaC / Re composite coating, and belongs to the technical field of coating materials. The Fe-based alloy and WC / TiC / TaC / Re composite powder formula is characterized by mainly involving the following components of, by weight part, 68-84.5 parts of Fe-based alloy powder, 5-20 parts of WC powder, 5-20 parts of TiC powder, 5-20 parts of TaC powder and 0.5-3 parts of Re powder. High-power powder feeding typelaser cladding is adopted for cladding the prepared composite powder on a pretreated base material surface to form the Fe-based alloy and WC / TiC / TaC / Re composite coating; and the Fe-based alloy and WC / TiC / TaC / Re composite coating prepared through the preparation process has excellent mechanical properties and mechanics properties, is fine and smooth in microstructure, is free of crack and pore defects and other defects, is high in surface hardness, has excellent wear resistance and corrosion resistance, can greatly prolong the service life of a part under a harsh working condition, and has awide application prospect.

Description

technical field [0001] The invention relates to a coating Fe-based alloy WC / TiC / TaC / Re (referring to rare earth Rare Earth) composite powder formula, a coating and a preparation process thereof, belonging to the technical field of coating materials. Background technique [0002] Many important surface properties depend on the physical and chemical properties of the metal surface, such as hardness, friction and wear properties, cavitation resistance, corrosion resistance, oxidation resistance, heat resistance, etc. These surface properties are closely related to the service performance and life of the workpiece. Traditional surface treatment methods, such as various coatings, infiltration layers, coatings, etc., often have poor interlayer bonding, and are limited by solid-state diffusion and equilibrium solubility, so the application effect is not satisfactory. With the development of high-power laser devices, a new effective way is provided for the research and development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B22F1/00
CPCB22F1/0003C23C24/103
Inventor 陈小明张磊伏利赵坚刘伟毛鹏展姜志鹏张凯
Owner MIN OF WATER RESOURCES HANGZHOU MACHINERY DESIGN INST
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