阅读说明：本技术 一种金属陶瓷复合材料 (Metal ceramic composite material ) 是由 王忠平 郭光富 于 2020-11-03 设计创作，主要内容包括：本发明提供了一种金属陶瓷复合材料,其组分按质量百分比计,包括如下组分：硬质相：20～30％,所述硬质相为TiC、SiC、WC中的一种或多种；粘结相：21～36％,所述粘结相为Cu-Ni连续固溶体加Co；晶粒抑制相：0～3％,所述晶粒抑制相为ZrC、VC中的一种或两种；其余为添加相,所述添加相为Mo、Mo2C、TaC、NbC、Cr、Cr3C2中的三种或三种以上；所述粘结相中Cu含量÷(Ni+Co)含量≤1/2,Co含量≤Ni含量；本发明使用Cu-Ni连续固溶体加Co代替Co作为粘接相,可在保证材料具有足够的韧性和结构强度的情况下,使得单位重量的金属陶瓷复合材料中Co的使用量大幅度减少；本发明中还包含晶粒抑制相,可抑制晶粒长大,进而有效保证了本发明的致密性和密度的均匀性。(The invention provides a metal ceramic composite material which comprises the following components in percentage by mass: hard phase: 20-30% of a hard phase, wherein the hard phase is one or more of TiC, SiC and WC; a binding phase: 21-36%, wherein the binding phase is Cu-Ni continuous solid solution added with Co; grain-inhibiting phase: 0-3%, wherein the grain inhibiting phase is one or two of ZrC and VC; the balance of additive phases, wherein the additive phases are three or more of Mo, Mo2C, TaC, NbC, Cr and Cr3C 2; the Cu content/Ni + Co content in the binding phase is less than or equal to 1/2, and the Co content is less than or equal to Ni content; according to the invention, the Cu-Ni continuous solid solution and Co are used for replacing Co as the bonding phase, so that the usage amount of Co in the metal ceramic composite material with unit weight is greatly reduced under the condition of ensuring that the material has enough toughness and structural strength; the invention also comprises a grain inhibiting phase which can inhibit the growth of grains, thereby effectively ensuring the compactness and the uniformity of density of the invention.)

1. The metal ceramic composite material is characterized by comprising the following components in percentage by mass:

hard phase: 20-30% of a hard phase, wherein the hard phase is one or more of TiC, SiC and WC;

a binding phase: 21-36%, wherein the binding phase is Cu-Ni continuous solid solution added with Co;

grain-inhibiting phase: 0-3%, wherein the grain inhibiting phase is one or two of ZrC and VC;

the balance of additive phases, wherein the additive phases are three or more of Mo, Mo2C, TaC, NbC, Cr and Cr3C 2.

2. The cermet composite material of claim 1, wherein the binder phase has a Cu content ÷ (Ni + Co) content ≤ 1/2, and a Co content ≤ Ni content.

3. The cermet composite material according to claim 2, characterised in that it consists, in mass%, of 30% TiC, 12% Ni, 12% Cu, 12% Co, 3% ZrC or 3% VC, 10% Mo2C, 10% TaC and 11% Cr.

4. The cermet composite material of claim 2, wherein the composition comprises, in mass%, 30% TiC, 12% Ni, 12% Cu, 12% Co, 3% ZrC or 3% VC, 10% Mo, 10% NbC and 11% Cr3C 2.

5. The cermet composite material according to claim 2, characterised in that it consists, in mass%, of 10% TiC, 5% SiC, 5% WC11, 11% Ni, 5% Cu, 5% Co, 1% ZrC, 1% VC, 10% Mo2C, 10% TaC, 10% Cr, 10% Mo, 10% NbC and 7% Cr3C 2.

6. The cermet composite material according to claim 2, wherein the Cu content ÷ (Ni + Co) content is 1/10-1/3, comprising Cu content ÷ (Ni + Co) content ═ 1/10 and Cu content ÷ (Ni + Co) content ═ 1/3.

7. A cermet composite according to claim 6 characterised in that the composition is in mass%;

hard phase: 22-28%, wherein the hard phase is one or more of TiC, SiC and WC;

a binding phase: 22-33%, wherein the binder phase is a Cu-Ni continuous solid solution added with Co;

grain-inhibiting phase: 1-2%, wherein the grain inhibiting phase is one or two of ZrC and VC;

the balance of additive phases, wherein the additive phases are three or more of Mo, Mo2C, TaC, NbC, Cr and Cr3C 2.

8. The cermet composite material of claim 7, wherein the composition comprises, in mass%, 18% TiC, 10% SiC, 17% Ni, 8% Cu, 8% Co, 2% ZrC or 2% VC, 10% Mo2C, 10% TaC, 10% Cr and 7% NbC.

9. A cermet composite material according to claim 7 characterised in that it has the composition, in mass%, 18% TiC, 10% WC, 17% Ni, 8% Cu, 8% Co, 2% ZrC or 2% VC, 10% Mo, 10% NbC,% 5Cr, 5% Cr3C2 and 7% NbC.

10. The cermet composite material of claim 7, wherein the composition comprises, in mass%, 10% TiC, 6% SiC, 6% WC11, 12% Ni, 2% Cu, 8% Co, 1% ZrC, 1% VC, 10% Mo2C, 10% TaC, 8% Cr, 8% Mo, 10% NbC and 8% Cr3C 2.

Technical Field

The invention relates to the technical field of metal ceramics, in particular to a metal ceramic composite material.

Background

Cermets are composite materials consisting of a ceramic hard phase and a metal or alloy binder phase. It combines the advantages of metal and ceramic. The carbide-based metal ceramic composite material is one of the major classes of metal ceramic composite materials, is formed by compounding titanium carbide, silicon carbide, tungsten carbide and the like serving as a matrix with metals such as cobalt, nickel, chromium, tungsten, molybdenum and the like, has the characteristics of high hardness, high wear resistance, high temperature resistance and the like, is a preferred material for manufacturing cutting tools, high temperature resistant bearings, sealing rings and turbine blades, and has wide application.

The existing carbide-based metal ceramic composite material generally uses cobalt as a binder, and the higher the cobalt content is, the better the toughness and structural strength of the metal ceramic composite material are. The average content of cobalt in the earth crust is 0.001 percent (mass), nearly hundreds of cobalt-containing minerals are known in nature, but no single cobalt mineral exists, most of the cobalt is generated in sulfide mineral deposits of nickel, copper, iron, lead, zinc, silver, manganese and the like, and the cobalt content is low. But the consumption amount is increased year by year due to the wide use of cobalt. Thus, for carbide-based cermet composites, the use of more readily available, less expensive binders in place of cobalt is a considerable challenge, while ensuring sufficient toughness and structural strength of the material.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a metal ceramic composite material, which can effectively reduce the usage amount of metal cobalt under the condition of ensuring that the material has enough toughness and structural strength.

In order to solve the technical problems in the prior art, the metal ceramic composite material comprises the following components in percentage by mass:

hard phase: 20-30% of a hard phase, wherein the hard phase is one or more of TiC, SiC and WC;

a binding phase: 21-36%, wherein the binding phase is Cu-Ni continuous solid solution added with Co;

grain-inhibiting phase: 0-3%, wherein the grain inhibiting phase is one or two of ZrC and VC;

the balance of additive phases, wherein the additive phases are three or more of Mo, Mo2C, TaC, NbC, Cr and Cr3C 2.

Furthermore, the Cu content/Ni + Co content in the binding phase is less than or equal to 1/2, and the Co content is less than or equal to Ni content.

Alternatively, the cermet composite composition comprises, in mass%, 30% TiC, 12% Ni, 12% Cu, 12% Co, 3% ZrC or 3% VC, 10% Mo2C, 10% TaC and 11% Cr.

As an alternative, the cermet composite material has the components of, by mass, 30% TiC, 12% Ni, 12% Cu, 12% Co, 3% ZrC or 3% VC, 10% Mo, 10% NbC and 11% Cr3C 2.

As an alternative, the metal ceramic composite material comprises, by mass, 10% of TiC, 5% of SiC, 5% of WC11, 11% of Ni, 5% of Cu, 5% of Co, 1% of ZrC, 1% of VC, 10% of Mo2C, 10% of TaC, 10% of Cr, 10% of Mo, 10% of NbC and 7% of Cr3C 2.

Further, the content of Cu/Ni/Co is 1/10-1/3, including 1/10 and 1/3.

Further, the metal ceramic composite material comprises the following components in percentage by mass;

hard phase: 22-28%, wherein the hard phase is one or more of TiC, SiC and WC;

a binding phase: 22-33%, wherein the binder phase is a Cu-Ni continuous solid solution added with Co;

grain-inhibiting phase: 1-2%, wherein the grain inhibiting phase is one or two of ZrC and VC;

the balance of additive phases, wherein the additive phases are three or more of Mo, Mo2C, TaC, NbC, Cr and Cr3C 2.

Alternatively, the cermet composite component comprises, in mass percent, 18% TiC, 10% SiC, 17% Ni, 8% Cu, 8% Co, 2% ZrC or 2% VC, 10% Mo2C, 10% TaC, 10% Cr, and 7% NbC.

Alternatively, the cermet composite component comprises, in mass percent, 18% TiC, 10% WC, 17% Ni, 8% Cu, 8% Co, 2% ZrC or 2% VC, 10% Mo, 10% NbC,% 5Cr, 5% Cr3C2 and 7% NbC.

As an alternative, the metal ceramic composite material comprises, by mass, 10% of TiC, 6% of SiC, 6% of WC11, 12% of Ni, 2% of Cu, 8% of Co, 1% of ZrC, 1% of VC, 10% of Mo2C, 10% of TaC, 8% of Cr, 8% of Mo, 10% of NbC and 8% of Cr3C 2.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the Cu-Ni continuous solid solution and Co are used for replacing Co as the bonding phase, so that the usage amount of Co in the metal ceramic composite material of unit weight is greatly reduced under the condition of ensuring that the material has enough toughness and structural strength.

2. The invention contains the crystal grain inhibiting phase, can inhibit the growth of crystal grains, further effectively ensures the compactness and the uniformity of the density of the invention and is beneficial to improving the comprehensive strength of the invention.

3. In the invention, a proper amount of Cr3C2 can be properly added, and Cr3C2 also has the effect of inhibiting the growth of crystal grains, so that the compactness and the uniformity of density of the invention can be further ensured, and the comprehensive strength of the invention can be further improved.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The first embodiment is as follows:

a metal ceramic composite material comprises the following components in percentage by mass: 30% TiC, 12% Ni, 12% Cu, 12% Co, 3% ZrC or 3% VC, 10% Mo2C, 10% TaC and 11% Cr.

The preparation method of the metal ceramic composite material in the embodiment comprises the following steps: 30 kg of TiC,12 kg of Ni,12 kg of Cu,12 kg of Co,3 kg of ZrC, 10 kg of Mo2C, 10 kg of TaC and 11 kg of Cr are weighed, the materials are in powder form or granular with the granularity smaller than 3mm, the weighed materials are added into a stirrer to be uniformly stirred, the materials are taken out of the stirrer after being uniformly mixed, then a hard alloy ball mill is added for grinding, the materials are sieved by a 300-mesh sieve to be filtered, the undersize materials are directly put into a die to be pressed into blanks, the oversize materials are ground again and sieved again after being ground, and the steps are repeated. And (3) putting the compression molding blank into a sintering furnace for sintering, wherein the sintering temperature is 1300-1400 ℃, the medium pressure in the sintering furnace is 5MPa, the heat preservation time is 0.5h, then cooling along with the furnace, taking out of the furnace after cooling, and taking out the prepared metal ceramic double-core material.

According to the invention, the Cu-Ni continuous solid solution and Co are used for replacing Co as the bonding phase, so that the usage amount of Co in the metal ceramic composite material of unit weight is greatly reduced under the condition of ensuring that the material has enough toughness and structural strength.

And the invention contains a crystal grain inhibiting phase, which can inhibit the growth of crystal grains, thereby effectively ensuring the compactness and the uniformity of density of the invention and being beneficial to improving the comprehensive strength of the invention.

Example two:

the metal ceramic composite material comprises, by mass, 30% of TiC, 12% of Ni, 12% of Cu, 12% of Co, 3% of ZrC or 3% of VC, 10% of Mo, 10% of NbC and 11% of Cr3C 2. In the embodiment, the invention contains proper amount of Cr3C2 and Cr3C2 which also have the function of inhibiting the growth of crystal grains, can further ensure the compactness and the uniformity of density, and is beneficial to further improving the comprehensive strength of the invention.

The preparation method of the metal ceramic composite material in the embodiment comprises the following steps: 30 kg TiC,12 kg Ni,12 kg Cu,12 kg Co,3 kg VC, 10 kg Mo, 10 kg NbC and 11 kg Cr3C2 are weighed, the materials are in powder form or granular with the granularity smaller than 3mm, the weighed materials are added into a stirrer to be uniformly stirred, the materials are taken out from the stirrer after being uniformly mixed, then a hard alloy ball mill is added for grinding, the materials are sieved by a 400-mesh sieve to be filtered, the undersize materials are directly put into a die to be pressed into blanks, the oversize materials are ground again and then sieved, and the process is repeated. And (3) putting the compression molding blank into a sintering furnace for sintering, wherein the sintering temperature is 1350-1450 ℃, the pressure in the sintering furnace is 6MPa, the heat preservation time is 0.6h, then cooling along with the furnace, taking out of the furnace after cooling, and taking out the prepared metal ceramic double-core material.

Example three:

the metal ceramic composite material comprises, by mass, 10% of TiC, 5% of SiC, 5% of WC11, 11% of Ni, 5% of Cu, 5% of Co, 1% of ZrC, 1% of VC, 10% of Mo2C, 10% of TaC, 10% of Cr, 10% of Mo, 10% of NbC and 7% of Cr3C 2. In the embodiment, the invention contains proper amount of Cr3C2 and Cr3C2 which also have the function of inhibiting the growth of crystal grains, can further ensure the compactness and the uniformity of density, and is beneficial to further improving the comprehensive strength of the invention.

The preparation method of the metal ceramic composite material in the embodiment comprises the following steps: weighing 10 kg of TiC,5 kg of SiC, 5 kg of WC11, 11 kg of Ni,5 kg of Cu,5 kg of Co,1 kg of ZrC, 1 kg of VC, 10 kg of Mo2C, 10 kg of TaC, 10 kg of Cr, 10 kg of Mo, 10 kg of NbC and 7 kg of Cr3C2, wherein the materials are in a powder form or granules with the granularity of less than 3mm, adding the weighed materials into a stirrer to be uniformly stirred, taking out the materials from the stirrer after uniform mixing, adding the materials into a hard alloy ball mill to be ground, sieving the materials with a 350-mesh sieve, directly filling the undersize materials into a die to be pressed into blanks, grinding the oversize materials again, sieving the materials again, and repeating the steps. And (2) putting the compression molding blank into a sintering furnace for sintering, wherein the sintering temperature is 1250-1400 ℃, the medium pressure in the sintering furnace is 8MPa, meanwhile, argon is filled into the sintering furnace for protection, the heat preservation time is 1h, then, the blank is cooled along with the furnace, and after the cooling is finished, the blank is taken out of the furnace and taken out of the furnace to prepare the finished metal ceramic check material.

Example four:

a metal ceramic composite material comprises, by mass, 18% of TiC, 10% of SiC, 17% of Ni, 8% of Cu, 8% of Co, 2% of ZrC or 2% of VC, 10% of Mo2C, 10% of TaC, 10% of Cr and 7% of NbC.

The preparation method of the metal ceramic composite material in the embodiment comprises the following steps: weighing 18 kg of TiC,10 kg of SiC,17 kg of Ni,8 kg of Cu,8 kg of Co,2 kg of ZrC or 2 kg of VC, 10 kg of Mo2C, 10 kg of TaC, 10 kg of Cr and 7 kg of NbC, wherein the materials are in a powder form or granular with the granularity less than 3mm, adding the weighed materials into a stirrer, uniformly stirring, taking out the materials from the stirrer after uniform mixing, adding the materials into a hard alloy ball mill for grinding, sieving through a 350-mesh sieve for filtering, directly putting the sieved materials into a die, pressing the materials into a blank, grinding the sieved materials again, sieving again after grinding, and repeating the steps. And (3) putting the compression molding blank into a sintering furnace for sintering, wherein the sintering temperature is 1250-1350 ℃, the medium pressure in the sintering furnace is 10MPa, argon is filled into the sintering furnace for protection, the heat preservation time is 0.5h, then the blank is cooled along with the furnace, and the blank is taken out of the furnace after the cooling is finished, so that the prepared metal ceramic check material is taken out.

Example five:

a metal ceramic composite material comprises, by mass, 18% TiC, 10% WC, 17% Ni, 8% Cu, 8% Co, 2% ZrC or 2% VC, 10% Mo, 10% NbC,% 5Cr, 5% Cr3C2 and 7% NbC. In the embodiment, the invention contains proper amount of Cr3C2 and Cr3C2 which also have the function of inhibiting the growth of crystal grains, can further ensure the compactness and the uniformity of density, and is beneficial to further improving the comprehensive strength of the invention.

The preparation method of the metal ceramic composite material in the embodiment comprises the following steps: weighing 18 kg of TiC,10 kg of WC,17 kg of Ni,8 kg of Cu,8 kg of Co,2 kg of ZrC or 2 kg of VC, 10 kg of Mo, 10 kg of NbC, 5 kg of Cr3C2 and 7 kg of NbC, wherein the materials are in a powder form or granules with the granularity less than 3mm, adding the weighed materials into a stirrer to be uniformly stirred, taking out the materials from the stirrer after uniform mixing, adding the materials into a hard alloy ball mill to be ground, sieving the materials with a 300-mesh sieve to be filtered, directly putting the sieved materials into a die to be pressed into blanks, re-grinding the sieved materials, re-sieving the ground materials, and repeating the steps. And (3) putting the compression molding blank into a sintering furnace for sintering, wherein the sintering temperature is 1250-1300 ℃, the medium pressure in the sintering furnace is 8MPa, meanwhile, argon is filled into the sintering furnace for protection, the heat preservation time is 0.8h, then, the blank is cooled along with the furnace, and after the cooling is finished, the blank is taken out of the furnace and taken out of the furnace to prepare the finished metal ceramic check material.

Example five:

the metal ceramic composite material comprises, by mass, 10% of TiC, 6% of SiC, 6% of WC11, 12% of Ni, 2% of Cu, 8% of Co, 1% of ZrC, 1% of VC, 10% of Mo2C, 10% of TaC, 8% of Cr, 8% of Mo, 10% of NbC and 8% of Cr3C 2. In the embodiment, the invention contains proper amount of Cr3C2 and Cr3C2 which also have the function of inhibiting the growth of crystal grains, can further ensure the compactness and the uniformity of density, and is beneficial to further improving the comprehensive strength of the invention.

The preparation method of the metal ceramic composite material in the embodiment comprises the following steps: weighing 10 kg of TiC,6 kg of SiC, 6 kg of WC11, 12 kg of Ni,2 kg of Cu,8 kg of Co,1 kg of ZrC, 1 kg of VC, 10 kg of Mo2C, 10 kg of TaC, 8 kg of Cr, 8 kg of Mo, 10 kg of NbC and 8 kg of Cr3C2, wherein the materials are in a powder form or granules with the granularity of less than 3mm, adding the weighed materials into a stirrer to be uniformly stirred, taking out the materials from the stirrer after uniform mixing, adding the materials into a hard alloy ball mill to be ground, sieving the materials with a 400-mesh sieve, directly filling the undersize materials into a die to be pressed into blanks, grinding the oversize materials again, sieving the materials again, and repeating the steps. And (3) putting the compression-molded blank into a sintering furnace for sintering, wherein the sintering temperature is 1350-1400 ℃, the medium pressure in the sintering furnace is 6MPa, meanwhile, argon is filled into the sintering furnace for protection, the heat preservation time is 0.7h, then, the blank is cooled along with the furnace, and after the cooling is finished, the blank is taken out of the furnace and taken out of the furnace to prepare the finished metal ceramic check material.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.