High-temperature-resistant light metal cladding material and preparation method thereof

A metal material and high-temperature-resistant technology, which is applied in the field of lightweight metal cladding materials and its preparation, can solve problems such as high cost, low-temperature performance, and high brittleness, and achieve high overall strength performance, meet service performance requirements, and provide good service The effect of performance requirements

Inactive Publication Date: 2021-03-16
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult for existing relatively mature materials to achieve the balance of the above properties at the same time. Ceramic matrix composites have good high temperature resistance, but are expensive, brittle, and easy to break; superalloys have high high temperature properties, but high density; titanium Alloys and TiAl-based intermetallic compounds have low density and high high-temperature performance, but are insufficient in oxidation resistance and ablation resistance when used above 1000 °C

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The steps of preparing a cylindrical member with a diameter of 100 mm and a height of 200 mm of the high-temperature-resistant lightweight metal clad material of the present invention are as follows:

[0026] The first step is to use GH3044 nickel-based superalloy as the outer layer material, and process the alloy’s tubular metal sheath body, upper and lower end caps and exhaust pipes according to the required parts. The wall thickness of the sheath is 3mm, and the inner diameter of the sheath is 104mm, length 206mm, the cylinder and the lower end cover are welded together;

[0027] The second step is to use Ti22Al-25Nb-0.5B as the inner light metal material, select forged rod as the base material, and process it into a prefabricated blank with a diameter of 98mm and a length of 198mm;

[0028] The third step is to use metal V powder as the slow-release isolation layer powder, the powder particle size is -120μm, and sprinkle a layer of slow-release isolation layer powde...

Embodiment 2

[0034] The step of preparing the high-temperature-resistant lightweight metal-clad material of the present invention with a diameter of 100mm and a cylindrical component of 200mm is as follows:

[0035] The first step is to use GH188 cobalt-based superalloy as the outer layer material, and process the alloy’s tubular metal sheath body, upper and lower end caps and exhaust pipes according to the required parts. The wall thickness of the sheath is 3mm, and the inner diameter of the sheath is 104mm, length 206mm, connecting the cylinder body and the lower end cover;

[0036] The second step is to use Ti22Al-25Nb-0.5B as the inner light metal material, select forged rod as the base material, and process it into a prefabricated blank with a diameter of 99mm and a length of 199mm;

[0037] The third step is to use metal Al2O3 powder as the slow-release isolation layer powder, the average particle size of the powder is -20μm, thermal spray the slow-release isolation layer on the surf...

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Abstract

The invention relates to a high-temperature-resistant light metal cladding material and a preparation method thereof. The cladding material is of a three-layer structure, wherein an outer layer is a high-temperature-resistant metal material, an inner layer is a light metal material, and a middle layer is a slow-release isolation layer. The cladding material is prepared by taking the outer-layer high-temperature-resistant metal material as a hot isostatic pressing sheath and realizing forming among the three layers of materials through hot isostatic pressing diffusion connection. The cladding material has the advantages of low specific gravity and good high-temperature oxidation resistance and ablation resistance.

Description

technical field [0001] The invention relates to a high-temperature-resistant lightweight metal cladding material and a preparation method thereof, belonging to the technical field of material molding. Background technique [0002] With the continuous improvement of the performance of aviation, aerospace vehicles and power devices, higher requirements are put forward for the performance of high-temperature materials, such as leading edge, airfoil, nose cone and other parts, the service temperature reaches above 1000 ° C, and high strength, Toughness, oxidation resistance, ablation resistance, lower specific gravity and low manufacturing cost. It is difficult for existing relatively mature materials to achieve the balance of the above properties at the same time. Ceramic matrix composites have good high temperature resistance, but are expensive, brittle, and easy to break; superalloys have high high temperature properties, but high density; titanium Alloys and TiAl-based inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B15/04B32B33/00B32B37/06B32B37/10
CPCB32B15/01B32B15/043B32B33/00B32B37/06B32B37/10B32B2255/06B32B2255/20B32B2255/205B32B2307/558B32B2307/306
Inventor 朱郎平孙志雨莫晓飞南海
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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