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Oxide particle reinforced laser cladding high-wear resistance nickel-base alloy powder and preparation method thereof

A technology of oxide particles and matrix alloy powder, applied in the direction of metal material coating process, coating, etc., can solve the problem that no special combination powder for laser cladding, storage, transportation and use are easy to produce segregation, cladding layer structure and cladding layer. Uneven performance and other problems, to achieve excellent laser cladding process performance, reduce laser cladding costs, and achieve the effect of grain refinement

Inactive Publication Date: 2013-04-03
江苏新亚特钢锻造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The added hard particles are larger and different in density from the matrix metal, and the distribution of the particles in the cladding layer is often uneven, usually showing a gradient distribution; the wettability, stability, and expansion coefficient of the added particle material and the matrix and chemical reactivity all lead to the inhomogeneity of the structure and performance of the cladding layer
Moreover, the prepared combined powder is prone to segregation during storage, transportation and use due to the large difference in the specific gravity of each component.
Commercial market supply is not possible, and there is no commercial sale of special powder for particle-enhanced laser cladding in the market
Due to the above reasons, there is no special combination powder for laser cladding, which restricts the application of laser cladding in the field of high wear-resistant conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] An oxide particle-enhanced laser cladding high wear-resistant nickel-based alloy powder and a preparation method thereof, the oxide particle-enhanced laser clad high wear-resistant nickel-based alloy powder consists of matrix alloy powder, oxide hard particles and a binder Composition, the ratio is: 60% matrix alloy powder, 37% Al 2 o 3 , 3% phenolic resin binder is prepared into combined powder; wherein the chemical composition and mass percentage of the matrix alloy are;

[0050] The alloy composition is 0.5%C, 2%Si, 2%B, 4%Cr, 4.0%V, 4%Mo, 1.20%Mn, 0.5%Nb, 10%Fe, 0.1%MgO, 0.5%CaF 2 , 0.2% CeO 2 , 0.2%Y 3 o 2 , 0.2% La 2 o 3 , Ni balance;

[0051] Its manufacturing process steps:

[0052] Preparation of matrix alloy powder→adding oxide particles→adding binder→stirring ball milling→combining powder→drying→crushing→sieving; the specific process steps are as follows:

[0053] (1) Preparation of matrix alloy

[0054] The process flow of matrix alloy powder prepa...

Embodiment 2

[0072] A laser cladding high wear-resistant nickel-based alloy powder and a preparation method thereof. The laser cladding high wear-resistant nickel-based alloy powder is composed of a matrix alloy powder, oxide hard particles and a binder, and the proportion thereof is: 68% matrix alloy powder, 30% ZrO 2 , 2% epoxy resin binder is prepared into combined powder; wherein the chemical composition and mass percentage of the matrix alloy are;

[0073] The alloy composition is 0.4%C, 2.5%Si, 2.5%B, 4.5%Cr, 5.0%V 3%Mo, 1.0%Mn, 0.7%Nb, 12%Fe, 0.15%MgO, 0.9%CaF 2 , 0.25% CeO 2 , 0.25%Y 3 o 2 , 0.25% La 2 o 3 Ni balance.

[0074] (2) Add oxide particles

[0075] The selected particle size range is -300 purpose commercially available ZrO 2powder as reinforcing particles;

[0076] (3) Add binder

[0077] Use thermosetting epoxy resin as binder, add methanol solvent to dissolve it into a resin solution;

[0078] (4) Stirring ball mill

[0079] The prepared matrix alloy powder...

Embodiment 3

[0082] An oxide particle-enhanced laser cladding high wear-resistant nickel-based alloy powder and a preparation method thereof, the oxide particle-enhanced laser clad high wear-resistant nickel-based alloy powder consists of matrix alloy powder, oxide hard particles and a binder Composition, the ratio is: 68% matrix alloy powder, 30% Al 2 o 3 and ZrO 2 The mixed body powder formed, 2% epoxy resin binder is prepared into combined powder; Wherein the chemical composition of matrix alloy and its mass percentage are;

[0083] The composition of the alloy is 0.6%C, 1.7%Si, 1.5%B, 6.5%Cr, 2.5%V, 5%Mo, 1.5%Mn, 0.6%Nb, 10%Fe, 0.2%MgO, 1.5%CaF 2 , 0.3% CeO 2 , 0.3%Y 3 o 2 , 0.3% La 2 o 3 , Ni balance.

[0084] (2) Add oxide particles

[0085] The selected particle size range is -200 mesh commercially available 50% Al 2 o 3 and 50% ZrO 2 Composition of mixed powder as reinforcing particles;

[0086] (3) Add binder

[0087] Water glass is used as binder, and methanol solve...

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Abstract

The invention provides oxide particle reinforced laser cladding high-wear resistance nickel-base alloy powder and a preparation method thereof. The powder is characterized by comprising basal body alloy powder, oxide hard particles and binding agent, and is proportioned as follows: 50-98 percent of basal body alloy powder, 1-45 percent of one of Al2O3, Cr3C2 and ZrO2 or combined mixture powder of more than two thereof, and 1-5 percent of binding agent are prepared to combined powder. The preparation method comprises the technique steps of preparation of basal body alloy powder, addition of oxide particles, addition of binding agent, stirring and ball milling, powder combination, drying, crushing and screening. The oxide particle reinforced laser cladding alloy powder has higher hardness and toughness, has excellent wear resistance and corrosion resistance, and is particularly suitable for laser cladding of alloy workpieces with higher surface hardness and high wear resistance; and the powder can effectively prevent segregation caused by great difference among specific gravities of all components in the process of storage, transportation and use.

Description

technical field [0001] The invention belongs to the technical field of nickel-based alloys, and relates to an oxide particle-enhanced laser cladding alloy powder and a preparation method thereof, in particular to an oxide particle-enhanced laser cladding high-wear-resistant nickel-based alloy powder and a preparation method thereof. High wear-resistant nickel-based alloy powder is suitable for laser cladding of high wear-resistant parts. Background technique [0002] In modern daily life and industrial production, wear and corrosion of metal materials will appear in various fields. It is one of the two main ways to damage mechanical parts and engineering components. Corrosion will lead to a large amount of consumption of mechanical parts, while wear It is one of the important reasons leading to the failure of mechanical parts. While they consume a lot of metal materials, they also waste a lot of resources, accounting for a very large proportion of economic losses. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C32/00C22C1/04B22F9/08C23C24/10C23C30/00
Inventor 丁刚丁家伟耿德英谢宗翰王爱华郭洪才印杰孙健唐华平
Owner 江苏新亚特钢锻造有限公司
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