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Nano ceramic particle reinforced nickel-based superalloy composite material and laser 3D printing forming method thereof

A technology of nickel-based superalloy and nano-ceramic particles, which is applied in the field of nano-ceramic particle-reinforced nickel-based superalloy composite materials and its laser 3D printing, which can solve the problems of difficult shape preparation, high porosity, and low density of formed parts. , achieve the effects of shortening the manufacturing cycle and cost, good high temperature corrosion resistance, and excellent mechanical properties

Inactive Publication Date: 2015-07-01
JIANGSU SILAIMU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also defects such as high porosity and large loss of raw materials; Liu Zongde and others from North China Electric Power University used the melting and casting method to synthesize TiC in situ. x Particle-reinforced nickel-based composite material (Patent Publication No. CN 101649398 B)
The in-situ composite method can well solve the wettability and interface problems between the reinforcement and the metal matrix, but the process is strict and difficult to master. It is difficult to control the composition and volume fraction of the reinforcement phase, and it is difficult to avoid other side reactions. The presence of inclusions; Zhang Xinghong et al. from Harbin Institute of Technology used self-propagating high-temperature combustion synthesis (SHS) combined with hot isostatic pressing to prepare TiC-Ni-based cermet materials. This method is limited by technical equipment and can only prepare TiC-Ni-based cermet materials. Composite materials and it is difficult to prepare workpieces with complex shapes, and the density of formed parts is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The original powder material is a nickel-based superalloy with a particle size of 15-45 μm, which is a regular spherical gas-atomized powder; and a CrC irregular polygonal powder with an average particle size of 50 nm. The composition of the nickel-based superalloy is: 21%Cr, 5%Fe, 0.4%Ti, 0.4%Al, 4.15%Nb, 8%Mo, 0.1%C and the balance Ni (weight percentage). Reinforcement phase Cr weight percent is 2.5%. First, the mixed powder is subjected to ball milling and mixing treatment: the mixed powder is subjected to high-energy ball milling using a Pulverisette6 single-pot planetary high-energy ball mill. In the process of ball milling and mixing, in order to prevent the powder from being oxidized, it is necessary to add protective gas argon. The ball-to-material ratio was 5:1, the ball milling speed was 200 rpm, and after 4 hours of ball milling, a uniformly mixed powder was finally obtained. Then establish the 3D CAD model of the part to be formed on the computer; use the ...

Embodiment 2

[0021]The original powder material is a nickel-based superalloy with a particle size of 45 μm, which is a regular spherical gas atomized powder; CrC irregular polygonal powder with an average particle size of 50 nm. The composition of the nickel-based superalloy is: 21%Cr, 5%Fe, 0.4%Ti, 0.4%Al, 4.15%Nb, 8%Mo, 0.1%C and the balance Ni (weight percentage). Reinforcement phase Cr weight percent is 8%. First, the mixed powder is subjected to ball milling and mixing treatment: the mixed powder is subjected to high-energy ball milling using a Pulverisette6 single-pot planetary high-energy ball mill. In the process of ball milling and mixing, in order to prevent the powder from being oxidized, it is necessary to add protective gas argon. The ball-to-material ratio was 4:1, the ball milling speed was 150 rpm, and after 5 hours of ball milling, a uniformly mixed powder was finally obtained. Then establish the 3D CAD model of the part to be formed on the computer; use the software to ...

Embodiment 3

[0023] The original powder material is a nickel-based superalloy with a particle size of 35 μm, which is a regular spherical gas-atomized powder; and a CrC irregular polygonal powder with an average particle size of 50 nm. The composition of the nickel-based superalloy is: 21%Cr, 5%Fe, 0.4%Ti, 0.4%Al, 4.15%Nb, 8%Mo, 0.1%C and the balance Ni (weight percentage). Reinforcing phase Cr weight percent is 6%. First, the mixed powder is subjected to ball milling and mixing treatment: the mixed powder is subjected to high-energy ball milling using a Pulverisette6 single-pot planetary high-energy ball mill. In the process of ball milling and mixing, in order to prevent the powder from being oxidized, it is necessary to add protective gas argon. The ball-to-material ratio was 4:1, the ball milling speed was 1800 rpm, and after 4.5 hours of ball milling, a uniformly mixed powder was finally obtained. Then establish the 3D CAD model of the part to be formed on the computer; use the soft...

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Abstract

The invention discloses a nano ceramic particle reinforced nickel-based superalloy composite material and a laser 3D printing forming method thereof. A nickel-based superalloy with the particle size of 15-45mu m is taken as a matrix, CrC with the particle size of 40-100nm is taken as a reinforced phase, and the addition amount of CrC is 2.0-8.0% by weight of the composite material matrix; a nano CrC particle hybrid reinforced nickel-based superalloy composite material part has the advantages of good high-temperature anti-corrosion property, abrasion resistance, high temperature creep and the like and can meet special performance requirements of an aero-engine hot end component at high temperature; a high-energy laser forming method is applicable to preparation of a difficult-to-process material and forming of a complex part; and a forming die is not needed, so that a manufacturing cycle is shortened, and the cost is reduced.

Description

technical field [0001] The invention relates to a forming method of a particle-reinforced nickel-based alloy component, in particular to a nano-ceramic particle-reinforced nickel-based superalloy composite material and a laser 3D printing forming method thereof. Background technique [0002] Nickel-based superalloys have comprehensive properties such as high high-temperature strength, high-temperature creep strength, good fatigue performance, fracture toughness, good oxidation resistance and corrosion resistance, and it has good structural stability and reliability at high temperatures , occupies an important position in the entire superalloy field, and is widely used to manufacture the hottest parts of aviation jet engines and various industrial gas turbines. Nickel-based superalloys are currently the most commonly used materials for the hot end of aero-engines. One of the most important performance parameters of an aero engine is the thrust-to-weight ratio. With the deve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05C22C32/00C22C1/05
Inventor 顾冬冬王泓乔马亮
Owner JIANGSU SILAIMU INTELLIGENT TECH CO LTD
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