Micro-nano oxide particle reinforced high abrasion resistance cobalt-based alloy powder and preparation method thereof

A technology of micro-nano oxide and matrix alloy powder, applied in laser cladding high wear-resistant parts, micro-nano oxide particles reinforced high wear-resistant cobalt-based alloy powder and its preparation field, can solve storage, transportation and other problems. It is easy to cause segregation, has not yet seen the special combination powder for laser cladding, and cannot be supplied to the commercial market, so as to achieve the effect of excellent laser cladding process performance, no impurities, and high hardness

Inactive Publication Date: 2014-01-22
江苏盛伟模具材料有限公司
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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

[0053] A micro-nano oxide particle-reinforced high wear-resistant cobalt-based alloy powder and a preparation method thereof, the micro-nano oxide particle-reinforced high-wear-resistant cobalt-based alloy powder consists of matrix alloy powder, micro-nano oxide hard particles and a binder Composition, the ratio is: 60% matrix alloy powder, 37% micro-nano Al 2 o 3 , 3% phenolic resin binder is prepared into combined powder; wherein the nanoparticle content in the micro-nanoparticles is 20-30%; wherein the chemical composition and mass percentage of the matrix alloy are;

[0054] 0.3%C, 4%Si, 2.5%B, 2.6%Cr, 1.5%W, 2.2%Mn, 0.3%Nb, 2.5%Ni, 13%Fe, 0.1%MgO, 0.5%CaF 2 , 0.2% CeO 2 , 0.2%Y 3 o 2 , 0.2% La 2 o 3 , Co balance.

[0055] Its manufacturing process steps:

[0056] Preparation of matrix alloy powder→adding micronano oxide particles→adding binder→stirring ball milling→combining powder→drying→crushing→sieving; the specific process steps are as follows:

[0057] (1) P...

Embodiment 2

[0076] A micro-nano oxide particle-reinforced high wear-resistant cobalt-based alloy powder and a preparation method thereof, the micro-nano oxide particle-reinforced high-wear-resistant cobalt-based alloy powder is composed of matrix alloy powder, micro-nano oxide particles and a binder , the ratio is: 68% matrix alloy powder, 30% micro-nano ZrO 2 , 2% epoxy resin binder is prepared into a combined powder; wherein the nanoparticle content in the micro-nanoparticles is 20-30%; wherein the chemical composition and mass percentage of the matrix alloy are;

[0077] 0.2%C, 5%Si, 3%B, 1.5%Cr, 2.0%W, 2.5%Mn, 0.2%Nb, 3%Ni, 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 , Co balance.

[0078] (2) Adding carbide particles

[0079] Select the commercially available micronano ZrO with a particle size range of -300 mesh 2 The powder is used as reinforced hard particles; the content of nanoparticles in the micro-nano particles is 20-30%;

[0080] (3) Add ...

Embodiment 3

[0086] A micro-nano oxide particle-reinforced high wear-resistant cobalt-based alloy powder and a preparation method thereof, the micro-nano oxide particle-reinforced high-wear-resistant cobalt-based alloy powder consists of matrix alloy powder, micro-nano oxide hard particles and a binder Composition, the ratio is: 68% matrix alloy powder, 30% Al 2 o 3 and micronano ZrO 2 The formed mixture powder is made, and 2% epoxy resin binder is prepared into a combined powder; wherein the nanoparticle content in the micronanoparticles is 20% to 30%; wherein the chemical composition and mass percentage of the matrix alloy are;

[0087] 0.4%C, 2.8%Si, 2.0%B, 3%Cr, 2.5%W, 1.8%Mn, 0.25%Nb, 2.0%Ni, 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 , Co balance.

[0088] (2) Add oxide particles

[0089] Select a commercially available 50% micro-nano Al with a particle size range of -200 mesh 2 o 3 and 50% micronano ZrO 2 Composition of micro-nano hybrid powder ...

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Abstract

The invention relates to micro-nano oxide particle reinforced high abrasion resistance cobalt-based alloy powder and a preparation method thereof. The micro-nano oxide particle reinforced high abrasion resistance cobalt-based alloy powder is combined powder and is characterized by comprising 50%-98% of matrix alloy powder, 1%-45% of micro-nano oxide particles and 1%-5% of a binding agent, wherein the micro-nano oxide particles are micro-nano Al2O3 or micro-nano mixed powder of one or more of micro-nano Cr3C2 and micro-nano ZrO2. The preparation method comprises the following processing steps: preparing the matrix alloy powder, adding the micro-nano oxide particles, adding the binding agent, stirring, ball-milling, combining the powder, drying, smashing and screening. The micro-nano oxide particle reinforced high abrasion resistance cobalt-based alloy powder has the advantages of high hardness and toughness, excellent abrasion resistance and corrosion resistance and capability of effectively preventing segregation due to wide proportion difference of the components in the storing, transporting and using processes and is particularly suitable for laser-clad high impact resistance and high abrasion resistance parts.

Description

technical field [0001] The invention belongs to the technical field of cobalt-based alloys, and relates to a micro-nano oxide particle reinforced alloy powder and a preparation method thereof, in particular to a micro-nano oxide particle-reinforced high wear-resistant cobalt-based alloy powder and a preparation method thereof. Cobalt-based alloy powder reinforced with micro-nano oxide particles is suitable for laser cladding parts under high wear-resistant conditions. 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 proportio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/07C22C32/00B22F1/00C23C24/10
Inventor 丁刚丁家伟耿德英张莹符寒光谢宗翰王爱华郭洪才印杰孙健张宁强颖怀郭长庆
Owner 江苏盛伟模具材料有限公司
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