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Titanium-based high-temperature wear-resistant coating and ultrahigh-speed laser cladding method thereof

A high-temperature wear-resistant and laser cladding technology, which is used in coatings and metal material coating processes to shorten the powder melting time, improve high-temperature oxidation resistance, and excellent high-temperature oxidation resistance.

Inactive Publication Date: 2021-06-29
JIANGSU TIANYI ULTRA FINE METAL POWDER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies of the existing traditional technology, to provide a titanium-based high-temperature wear-resistant coating and its ultra-high-speed laser cladding method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Titanium-based alloy powder, the raw material of the titanium-based high-temperature wear-resistant coating in this embodiment, has a chemical composition mass fraction of: 3.0%C, 14.0%W, 30.0%Al, 3.5%B, 3.0%V, 2.5%Nb, and the balance For Ti and unavoidable impurities.

[0020] The titanium-based alloy powder particle size distribution: 20-100µm, fluidity 35.3s / 100g.

[0021] The ultra-high-speed laser cladding method of the titanium-based high-temperature wear-resistant coating in this embodiment includes the following steps:

[0022] (1) Polish the surface of the workpiece with 400 mesh sandpaper and clean it with acetone;

[0023] (2) Dry the titanium-based alloy powder in a drying oven at a drying temperature of 150°C and a drying time of 2 hours;

[0024] (3) The titanium-based alloy powder in step (2) is fed through synchronous powder feeding method, the powder feeding rate is 8g / min, the powder feeding gas flow rate is 6L / min, and a high-power semiconductor las...

Embodiment 2

[0027] Titanium-based alloy powder, the raw material of the titanium-based high-temperature wear-resistant coating in this embodiment, has a chemical composition mass fraction of: 4.0%C, 16.0%W, 25.0%Al, 4.5%B, 5.0%V, 2.0%Nb, and the balance For Ti and unavoidable impurities.

[0028] The titanium-based alloy powder particle size distribution: 20-100µm, fluidity 37.8s / 100g.

[0029] The ultra-high-speed laser cladding method of the titanium-based high-temperature wear-resistant coating in this embodiment includes the following steps:

[0030] (1) Polish the surface of the workpiece with 400 mesh sandpaper and clean it with acetone;

[0031] (2) Dry the titanium-based alloy powder in a drying oven at a drying temperature of 120°C and a drying time of 3 hours;

[0032] (3) The titanium-based alloy powder in step (2) is fed through a synchronous powder feeding method, the powder feeding rate is 12g / min, the powder feeding gas flow rate is 8L / min, and a high-power semiconductor ...

Embodiment 3

[0035] Titanium-based alloy powder, the raw material of the titanium-based high-temperature wear-resistant coating in this embodiment, has a chemical composition mass fraction of: 7.0%C, 17.0%W, 20.0%Al, 2.5%B, 4.0%V, 4.5%Nb, and the balance For Ti and unavoidable impurities.

[0036] The titanium-based alloy powder particle size distribution: 20-100µm, fluidity 39.4s / 100g.

[0037] The ultra-high-speed laser cladding method of the titanium-based high-temperature wear-resistant coating in this embodiment includes the following steps:

[0038] (1) Polish the surface of the workpiece with 400 mesh sandpaper and clean it with acetone;

[0039] (2) Dry the titanium-based alloy powder in a drying oven at a drying temperature of 100°C and a drying time of 5 hours;

[0040] (3) The titanium-based alloy powder in step (2) is fed through a synchronous powder feeding method with a powder feeding rate of 15g / min and a powder feeding gas flow rate of 10L / min. A high-power semiconductor ...

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Abstract

The invention discloses a titanium-based high-temperature wear-resistant coating and an ultrahigh-speed laser cladding method thereof. The raw material of the titanium-based high-temperature wear-resistant coating is titanium-based alloy powder, which comprises the following chemical components in percentage by mass: 3-7% of C, 13-17% of W, 20-30% of Al, 2-5% of B, 3-5% of V, 2-5% of Nb and the balance of Ti and inevitable impurities. The particle size distribution of the titanium-based alloy powder is 20-100 microns, and the fluidity of the titanium-based alloy powder is 33-41s / 100g. The coating is prepared from the titanium-based alloy powder by adopting the ultrahigh-speed laser cladding method, and the obtained coating is high in hardness and has good wear resistance in a high-temperature environment.

Description

technical field [0001] The invention belongs to the technical field of ultra-high-speed laser cladding, and in particular relates to a titanium-based high-temperature wear-resistant coating and an ultra-high-speed laser cladding method thereof. Background technique [0002] Titanium is an important metal material developed in the 20th century. It has the advantages of high specific strength, good corrosion resistance, and high heat resistance, which makes titanium alloys widely used in harsh working environments. Titanium and titanium alloys are widely used in aviation, aerospace, weapons, nuclear energy and other fields. The application of titanium alloy was first used in the aviation industry, mainly aircraft engines, racks, landing gear and rocket missiles. Aluminum alloy is the most widely used non-ferrous metal material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing and other fields. However, under normal circumstance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C14/00
CPCC22C14/00C23C24/103
Inventor 朱宏伟桂宝桃高扬
Owner JIANGSU TIANYI ULTRA FINE METAL POWDER