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Titanium carbonitride-based cermet material with high toughness and high wear resistance and preparation method thereof

A technology of titanium carbonitride and high wear resistance, which is applied in the field of high toughness and high wear resistance titanium carbonitride based cermet materials and their preparation to achieve the improvement of holding effect, fracture toughness, wear resistance and service performance. Effect

Active Publication Date: 2021-12-28
CHENGDU MET CERAMIC ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a titanium carbonitride-based cermet material with high toughness and high wear resistance and its preparation method, so as to solve the urgent need to continuously improve the hardness, toughness and wear resistance of the existing cermet application field. question

Method used

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  • Titanium carbonitride-based cermet material with high toughness and high wear resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] ① Mix the carbon fiber material and the raw material for forming the coating layer through a ball mill to prepare the precursor slurry; the ball-to-material ratio in the ball mill is 1:1, the speed is 15 rpm, and the ball milling time is 0.8h.

[0038] Wherein, the raw materials for forming the cladding layer include ammonium tungstate solution, ammonium molybdate solution and glucose solution; and the carbon fiber material, the content of ammonium tungstate in the ammonium tungstate solution, and the The mass ratio of the glucose content and the glucose content in the glucose solution is 1:5:4:1.2; and the solution concentration of the ammonium tungstate solution is 0.4mol / L, and the solution concentration of the ammonium molybdate solution is 0.4mol / L , the solution concentration of the glucose solution is 1.2mol / L.

[0039] ②The precursor slurry prepared in step ① is subjected to vacuum stirring and drying method to obtain the precursor material uniformly mixed with ...

Embodiment 2

[0042] ① Mix the carbon fiber material and the raw material for forming the coating layer through a ball mill to prepare the precursor slurry; the ball-to-material ratio in the ball mill is 0.5:1, the speed is 10 rpm, and the ball milling time is 2h.

[0043]Wherein, the raw materials for generating the coating layer include ammonium tungstate solution, ammonium molybdate solution and glucose solution; the content of ammonium tungstate in the carbon fiber material, the ammonium tungstate solution, and the content of ammonium molybdate in the ammonium molybdate solution The mass ratio of the glucose content in the glucose solution is 1:7.5:2:1.2; and the solution concentration of the ammonium tungstate solution is 0.1mol / L, and the solution concentration of the ammonium molybdate solution is 0.1mol / L, The solution concentration of the glucose solution is 0.3mol / L.

[0044] ②The precursor slurry prepared in step ① is subjected to vacuum stirring and drying method to obtain the p...

Embodiment 3

[0047] ① Mix the carbon fiber material and the raw material for forming the coating layer through a ball mill to prepare the precursor slurry; the ball-to-material ratio in the ball mill is 2:1, the speed is 20 rpm, and the ball milling time is 0.5h;

[0048] Wherein, the raw materials for generating the coating layer include ammonium tungstate solution, ammonium molybdate solution and glucose solution; the content of ammonium tungstate in the carbon fiber material, the ammonium tungstate solution, and the content of ammonium molybdate in the ammonium molybdate solution The mass ratio of the glucose content in the glucose solution is 1:3.6:6:1.2; and the solution concentration of the ammonium tungstate solution is 0.8mol / L, and the solution concentration of the ammonium molybdate solution is 0.8mol / L, The solution concentration of the glucose solution is 0.4mol / L.

[0049] ②The precursor slurry prepared in step ① is subjected to vacuum stirring and drying method to obtain the ...

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Abstract

The invention provides a titanium carbonitride-based cermet material with high toughness and high wear resistance and a preparation method thereof, which solves the technical problem that the existing cermet application fields urgently need to continuously improve its hardness, toughness and wear resistance. Its preparation includes the following main materials in weight percentage: titanium carbonitride powder 30% to 70%; surface modified carbon fiber material 0.5% to 5%; metal binder phase powder 10% to 30%; carbide powder 15% %~35%; the sum of the weight percentages of each main material is 100%. The present invention adopts high-strength carbon fiber material as the toughening phase to prepare titanium carbonitride-based cermets. The fracture toughness of cermets is significantly improved compared with ordinary cermets, and the hardness and wear resistance are also better than ordinary cermets. The field of application of cermets has a positive effect.

Description

technical field [0001] The invention relates to a titanium carbonitride-based cermet material, in particular to a titanium carbonitride-based cermet material with high toughness and high wear resistance and a preparation method thereof. Background technique [0002] Ti(C,N)-based cermet is a kind of hard phase with Ti(C,N), Co, Ni, Fe as binder phase, and adding WC, Mo 2 C, TaC, VC and other carbides form ring phases to improve the mechanical properties of multi-phase composite materials. Compared with ordinary cemented carbide materials, Ti(C,N)-based cermets have high hardness, high wear resistance, and excellent corrosion resistance and oxidation resistance. This material has gradually replaced WC-Co cemented carbide in high-speed cutting tools and wear-resistant parts. However, the microstructure of this material is relatively complex, and the interface bonding ability is poor, which results in poor toughness of the cermet material, which limits the expansion of its ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C47/14C22C49/12C22C49/14B22F3/02B22F3/10B22F9/04D06M11/74C22C101/10D06M101/40
CPCC22C47/14C22C49/12C22C49/14B22F3/02B22F3/1007B22F9/04D06M11/74B22F2009/043D06M2101/40
Inventor 颜焰
Owner CHENGDU MET CERAMIC ADVANCED MATERIALS