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Micro-nanometer oxide particle reinforced alloy powder and preparation method thereof

A micro-nano oxide, particle-enhanced technology, applied in the field of micro-nano oxide particle reinforced alloy powder and its preparation, laser cladding parts with high wear-resistant conditions, can solve the problem of easy segregation during storage, transportation and use. See the special combination powder for laser cladding, uneven structure and performance of the cladding layer, etc., to achieve the effect of excellent laser cladding process performance, no impurities, and grain refinement

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 cannot be carried out, and there is no commercial sale of micro-nano particle-enhanced laser cladding special powder 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 alloy powder and a preparation method thereof, the micro-nano oxide particle reinforced alloy powder is composed of a matrix alloy powder, micro-nano oxide hard particles and a binder, and the ratio is: 60% Base alloy powder, 37% micro-nano Al 2 O 3 , 3% phenolic resin binder is prepared into a composite powder, wherein the content of nanoparticles in the micro-nano particles is 20-30%; wherein the chemical composition of the matrix alloy and its mass percentage are:

[0054] 0.5%C, 2.0%Si, 2.5%B, 20%Cr, 9%Cu, 6%W, 6%Mo, 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 , Ni margin.

[0055] Its manufacturing process steps:

[0056] Base alloy powder preparation → adding micro-nano oxide particles → adding binder → stirring ball milling → combining powder → drying → crushing → sieving; the specific process steps are as follows:

[0057] (1) Preparation of base alloy

[0058] The process flow of matrix al...

Embodiment 2

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

[0077] 0.6%C, 3%Si, 3%B, 25%Cr, 10Cu%, 4%W, 8%Mo, 15%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 margin.

[0078] (2) Add micro-nano oxide particles

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

[0080] (3) Add binder

[0081] Use thermosetting epoxy resin as binder,...

Embodiment 3

[0086] A micro-nano oxide particle reinforced high-toughness and wear-resistant nickel-based alloy powder and a preparation method thereof. It consists of 68% base alloy powder, 30% micro-nano Al 2 O 3 and micro-nano ZrO 2 The formed micro-nano mixed powder is prepared into a composite powder with 2% epoxy resin binder; wherein the content of nanoparticles in the micro-nano particles is 20-30%;

[0087] The chemical composition of the base alloy and its mass percentage are:

[0088] 0.6%C, 2.5%Si, 2.0%B, 27%Cr, 8%Cu, 5%W, 5%Mo, 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 margin.

[0089] (2) Add micro-nano oxide particles

[0090] Select the particle size range of -200 mesh commercially available 50% micro-nano Al 2 O 3 and 50% micro-nano ZrO 2 The micro-nano mixed powder is formed as reinforcing particles; the content of nanoparticles in the micro-nano particles is 20-30%;

[0091] (3) Add binder

[0092] Use water glass as binder ...

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Abstract

The invention provides micro-nanometer oxide particle reinforced alloy powder and a preparation method of the micro-nanometer oxide particle reinforced alloy powder. The micro-nanometer oxide particle reinforced alloy powder is characterized by being composed of matrix alloy powder, micro-nanometer oxide particles and a binding agent, wherein the micro-nanometer oxide particle reinforced alloy powder comprises 50%-98% of matrix alloy powder and 1-45% of micro-nanometer Al2O3 or one of micro-nanometer Cr3C2 and micro-nanometer ZrO2 or combined micro-nanometer mixture powder composed of the micro-nanometer Cr3C2 and the micro-nanometer ZrO2. The preparation technology of the micro-nanometer oxide particle reinforced alloy powder comprises the steps of preparation of the matrix alloy powder, addition of the micro-nanometer oxide particles, addition of the binding agent, mixing and ball milling, powder combination, drying, breaking and screening. The micro-nanometer oxide particle reinforced alloy powder is high in rigidity and toughness, good in abrasion resistance and corrosion resistance, particularly suitable for laser cladding of a part with the working conditions of high impact and high abrasion-resistance, and capable of effectively avoiding segregation caused by a large component ratio difference 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 a micro-nano alloy powder and a preparation method thereof, in particular to a micro-nano oxide particle reinforced alloy powder and a preparation method thereof. The micro-nano oxide particle reinforced alloy powder is suitable for laser Cladding 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, and it is one of the two main ways to destroy mechanical parts and engineering components. Corrosion will lead to a large amount of consumption of mechanical parts, and wear and tear It is one of the important reasons for the failure of mechanical parts. While they lose a lot of metal materials, they also waste a lot of resources, accounting for a very large proportion of economic losses. [0003] The failure of engineering components caused by high temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C22C32/00C22C19/05C22C30/00B22F9/08
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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