CN104313444B - A kind of cobalt cladded type titanium Hardmetal materials and preparation method thereof - Google Patents
A kind of cobalt cladded type titanium Hardmetal materials and preparation method thereof Download PDFInfo
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- CN104313444B CN104313444B CN201410520032.4A CN201410520032A CN104313444B CN 104313444 B CN104313444 B CN 104313444B CN 201410520032 A CN201410520032 A CN 201410520032A CN 104313444 B CN104313444 B CN 104313444B
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- 239000000463 material Substances 0.000 title claims abstract description 71
- 239000010936 titanium Substances 0.000 title claims abstract description 71
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 69
- 239000010941 cobalt Substances 0.000 title claims abstract description 40
- 229910017052 cobalt Inorganic materials 0.000 title claims abstract description 40
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 34
- 238000005253 cladding Methods 0.000 claims abstract description 19
- 239000010955 niobium Substances 0.000 claims abstract description 18
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 18
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010703 silicon Substances 0.000 claims abstract description 15
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 5
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 28
- 238000003763 carbonization Methods 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 17
- 229910052786 argon Inorganic materials 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000005229 chemical vapour deposition Methods 0.000 claims description 9
- 239000002105 nanoparticle Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 238000003837 high-temperature calcination Methods 0.000 claims description 7
- ILZSSCVGGYJLOG-UHFFFAOYSA-N cobaltocene Chemical compound [Co+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 ILZSSCVGGYJLOG-UHFFFAOYSA-N 0.000 claims description 6
- ZBZHVBPVQIHFJN-UHFFFAOYSA-N trimethylalumane Chemical compound C[Al](C)C.C[Al](C)C ZBZHVBPVQIHFJN-UHFFFAOYSA-N 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 2
- 239000000956 alloy Substances 0.000 abstract description 21
- 229910045601 alloy Inorganic materials 0.000 abstract description 20
- 239000002082 metal nanoparticle Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 2
- TWHBEKGYWPPYQL-UHFFFAOYSA-N aluminium carbide Chemical compound [C-4].[C-4].[C-4].[Al+3].[Al+3].[Al+3].[Al+3] TWHBEKGYWPPYQL-UHFFFAOYSA-N 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 235000008113 selfheal Nutrition 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
Abstract
A kind of cobalt cladded type titanium Hardmetal materials and preparation method thereof, relate to field of alloy material, the metallic cobalt being mainly composed of titanium carbide, aluminium carbide, carborundum, niobium carbide and cladding of hard alloy, wherein the amount of titanium, aluminum, silicon and niobium material in the material is than for 1:0.05 0.15:0.06 0.18:0.03 0.09；Clad is cobalt nanometer particle layer, thickness 50 200nm.The preparation method of this Hardmetal materials, is that the oxide to four kinds of elements carries out high temperature cabonization, after being then crushed to corresponding granularity, carries out the cladding of Co metallic, eventually passes calcining preparation.Cobalt cladded type titanium Hardmetal materials that the present invention provides and preparation method thereof, is one layer of Co metal nanoparticle layer of cladding on the powder body of four kinds of element carbide, then makes material molding by high temperature method.Titanium Hardmetal materials after molding, not only has higher consistency, has higher hot strength and toughness simultaneously.
Description
Technical field
The invention belongs to technical field of alloy, particularly to one have plasticity, mechanical performance be provided simultaneously with by force preferable intensity and
Cobalt cladded type titanium Hardmetal materials of toughness and preparation method thereof.
Background technology
Pure titanium mechanical performance is strong, and plasticity is good, it is easy to processing, improves the intensity of titanium and hard if any impurity, particularly O, N, C
Degree, but its plasticity can be reduced, increase fragility.Meanwhile, titanium is the metal of easily passivation, and in an oxygen-containing environment, its passivating film
Can also self-heal after being destroyed.Therefore, titanium and titanium alloy have the corrosion resistance of excellence, particularly stable performance, are much better than
Rustless steel.
The titanium of liquid almost can dissolve all of metal, forms the various alloy such as solid solution or metallic compound.Alloying element such as Al,
The addition of V, Zr, Sn, Si, Mo and Mn etc., can improve the performance of titanium, to adapt to different needs.
In view of the performance that titanium or titanium alloy is excellent, titanium enjoys the laudatory title of " following metal ", and titanium alloy is widely used in national warp
Ji all departments.
The patent documentation " a kind of titanium alloy " of Application No. 201310251700.3, discloses a kind of titanium alloy, described alloy
Consist of (in terms of weight %): the carbon of 0.25% to 0.29%；The manganese of 0.10% to 1.20%；The phosphorus of 0.09% to 0.13%；0.10%
To the tellurium of 0.19%；The antimony of 0.60% to 1.00%；The aluminum of≤0.09%；The nitrogen of≤0.01%；The chromium of 0.45% to 0.83%；0.04%
To the niobium of 0.07%；The copper of≤0.50%；The lanthanum of 0.25% to 0.70%；The cerium of 0.2% to 2.00%；The vanadium of 0.2% to 0.4%；0.0075%
To the tungsten of 0.0095%；The titanium of 0.010% to 0.050%: remaining is ferrum and inevitable impurity.It follows that this titanium alloy
Component more, scope includes metal and the most nonmetal, and wherein the content of titanium is relatively low, and the titanium of 0.010%-0.050% can not
Playing the excellent properties of titanium, therefore, this alloy is not " titanium alloy ", but a kind of many metal alloys, its performance is the most logical
Cross the various metals added to realize, do not embody the premium properties of titanium.
The patent documentation " a kind of vanadium carbide titanium based hard alloy " of Application No. 201310195627.2, discloses a kind of titaniferous hard
Matter alloy, this alloy is made up of the raw material of following percetage by weight: element contained by this hard alloy and the mass percent of each element
Being respectively as follows: V, its content is 39.06-43.65%；Ti, its content is 36.75-41.08%；Fe, its content is 0.5%
-5%；C, its content is 9.19-10.27%；Surplus is cobalt and impurity.In this technical scheme hard for making up cobalt binder tungsten carbide
The deficiency of matter alloy, replaces tungsten carbide with vanadium carbide titanium, so vanadium carbide titanium based hard alloy compensate for cobalt binder tungsten carbide hard
The deficiency of alloy, and the most superior, although but there is certain mechanical performance, but hardness and hot strength do not improve,
So the hardness of this hard alloy and intensity are the most relatively low.
Summary of the invention
Present invention solves the technical problem that: for the defect of prior art, overcome the deficiencies in the prior art, the present invention to provide a kind of
Cobalt cladded type titanium Hardmetal materials and preparation method thereof.
Technical scheme: a kind of cobalt cladded type titanium Hardmetal materials, in Hardmetal materials, is mainly composed of carbonization
The metallic cobalt of titanium, aluminium carbide, carborundum, niobium carbide and cladding, wherein the amount ratio of titanium, aluminum, silicon and niobium material in the material
For: 1:0.05-0.15:0.06-0.18:0.03-0.09；
Clad is metallic cobalt nanoparticle layers, and thickness is 50-200nm.
As preferably, in material, the amount of the material of titanium and aluminum is than for 1:0.8-0.12.
As preferably, in material, the amount of the material of titanium and niobium is than for 1:0.05.
As preferably, metallic cobalt nanoparticle layers, thickness is 70-120nm.
A kind of preparation method of cobalt cladded type titanium Hardmetal materials, preparation process is as follows:
(1) the amount ratio according to material weighs the oxide of titanium, aluminum, silicon and niobium, mix homogeneously；
(2) compound is put in high temperature carbonization furnace and carry out carbonization, temperature 1800 DEG C-2300 DEG C, time 1-3h；
(3) after carbonization terminates, it is cooled to room temperature, compound is taken out, puts into grinder and be ground to powder；
(4) powder is put into chemical vapor deposition reaction chamber, be evacuated to 10-100Pa, be preheated to 600-800 DEG C, Yi Ermao
Cobalt is presoma, and the evaporating temperature controlling raw material is 130-160 DEG C, is passed through argon, and the reative cell speed of rotation is 30-60r/min,
Response time 30-60min, after reaction terminates, is cooled to room temperature, takes out；
(5) high-temperature calcination is carried out by putting into mould after the powder body mix homogeneously after cladding, temperature 8000-1200 DEG C, time 1-3h,
It is cooled to room temperature, takes out, i.e. obtain cobalt cladded type titanium Hardmetal materials.
As preferably, the mean diameter of the powder that step (3) obtains is 0.1-10um.
As preferably, the gas flow of the argon being passed through in step (4) chemical vapour deposition reaction is 10-50sccm.
As preferably, weigh titanium carbide, aluminium carbide, carborundum and niobium carbide powder, put into ball mill, carry out after mix homogeneously
Step (4) and step (5), obtain cobalt cladded type titanium Hardmetal materials.
Beneficial effect: cobalt cladded type titanium Hardmetal materials that the present invention provides and preparation method thereof, selects titanium, aluminum, silicon and niobium
For main component, and control titanium, aluminum, silicon and the content of four kinds of elements of niobium so that titanium hard alloy has certain intensity and tough
Property, the most still lose plasticity simultaneously.Meanwhile, the powder body of four kinds of element carbide is coated with one layer of Co metal nanoparticle layer,
Material molding is made again by high temperature method.Material after molding, the submicron order one by one of four kinds of element carbide compositions or micron order
Group, this group itself i.e. possesses the feature of high intensity and toughness, by the cladding of Co nanoparticle layers with cohere work
With so that the performance of group itself more they tends to stable, and is connected with each other the tightst between group, therefore, and the titanium hard of preparation
Alloy, not only has higher consistency, has higher hot strength and toughness simultaneously.
Detailed description of the invention
In order to be further appreciated by the present invention, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should manage
Solving, these describe simply as further illustrating the features and advantages of the present invention rather than limiting to the claimed invention.
Embodiment 1:
Preparing cobalt cladded type titanium Hardmetal materials according to the preparation method that invention provides, step is as follows:
(1) the amount ratio according to material weighs the oxide of titanium, aluminum, silicon and niobium, mix homogeneously；
Wherein, the amount of titanium, aluminum, silicon and niobium material in the material is than for 1:0.05:0.06:0.03；
(2) compound is put in high temperature carbonization furnace and carry out carbonization, temperature 2200 DEG C, time 2h；
(3) after carbonization terminates, being cooled to room temperature, taken out by compound, put into grinder and be ground to powder, mean diameter is
0.5um；
(4) powder is put into chemical vapor deposition reaction chamber, be evacuated to 30Pa, be preheated to 700 DEG C, with cobaltocene as forerunner
Body, the evaporating temperature controlling raw material is 135 DEG C, is passed through argon, and the gas flow of argon is 30sccm, the reative cell speed of rotation
For 30r/min, response time 45min, after reaction terminates, it is cooled to room temperature, takes out；
After testing, in powder body material, the thickness of the Co metal nanoparticle layer of cladding is 70nm；
(5) carry out high-temperature calcination, temperature 1100 DEG C, time 2h by putting into mould after the powder body mix homogeneously after cladding, treat cold
But to room temperature, take out, i.e. obtain cobalt cladded type titanium Hardmetal materials.
Embodiment 2:
Preparing cobalt cladded type titanium Hardmetal materials according to the preparation method that invention provides, step is as follows:
(1) the amount ratio according to material weighs the oxide of titanium, aluminum, silicon and niobium, mix homogeneously；
Wherein, the amount ratio of titanium, aluminum, silicon and niobium material in the material is: 1:0.15:0.18:0.09；
(2) compound is put in high temperature carbonization furnace and carry out carbonization, temperature 2200 DEG C, time 3h；
(3) after carbonization terminates, being cooled to room temperature, taken out by compound, put into grinder and be ground to powder, mean diameter is
0.5um；
(4) powder is put into chemical vapor deposition reaction chamber, be evacuated to 20Pa, be preheated to 800 DEG C, with cobaltocene as forerunner
Body, the evaporating temperature controlling raw material is 150 DEG C, is passed through argon, and the gas flow of argon is 30sccm, the reative cell speed of rotation
For 45r/min, response time 45min, after reaction terminates, it is cooled to room temperature, takes out；
After testing, in powder body material, the thickness of the Co metal nanoparticle layer of cladding is 180nm；
(5) carry out high-temperature calcination, temperature 1100 DEG C, time 2h by putting into mould after the powder body mix homogeneously after cladding, treat cold
But to room temperature, take out, i.e. obtain cobalt cladded type titanium Hardmetal materials.
Embodiment 3:
Preparing cobalt cladded type titanium Hardmetal materials according to the preparation method that invention provides, step is as follows:
(1) the amount ratio according to material weighs the oxide of titanium, aluminum, silicon and niobium, mix homogeneously；
Wherein, the amount ratio of titanium, aluminum, silicon and niobium material in the material is: 1:0.8:0.12:0.05；
(2) compound is put in high temperature carbonization furnace and carry out carbonization, temperature 2200 DEG C, time 2h；
(3) after carbonization terminates, being cooled to room temperature, taken out by compound, put into grinder and be ground to powder, mean diameter is
0.5um；
(4) powder is put into chemical vapor deposition reaction chamber, be evacuated to 50Pa, be preheated to 700 DEG C, with cobaltocene as forerunner
Body, the evaporating temperature controlling raw material is 145 DEG C, is passed through argon, and the gas flow of argon is 40sccm, the reative cell speed of rotation
For 60r/min, response time 30min, after reaction terminates, it is cooled to room temperature, takes out；
After testing, in powder body material, the thickness of the Co metal nanoparticle layer of cladding is；Thickness is 120nm；
(5) carry out high-temperature calcination, temperature 1100 DEG C, time 2h by putting into mould after the powder body mix homogeneously after cladding, treat cold
But to room temperature, take out, i.e. obtain cobalt cladded type titanium Hardmetal materials.
Embodiment 4:
Preparing cobalt cladded type titanium Hardmetal materials according to the preparation method that invention provides, step is as follows:
(1) the amount ratio according to material weighs the oxide of titanium, aluminum, silicon and niobium, mix homogeneously；
Wherein, the amount ratio of titanium, aluminum, silicon and niobium material in the material is: 1:0.12:0.15:0.06；
(2) compound is put in high temperature carbonization furnace and carry out carbonization, temperature 2200 DEG C, time 2.5h；
(3) after carbonization terminates, it is cooled to room temperature, compound is taken out, puts into grinder and be ground to powder；Mean diameter is
1um。
(4) powder is put into chemical vapor deposition reaction chamber, be evacuated to 30Pa, be preheated to 700 DEG C, with cobaltocene as forerunner
Body, the evaporating temperature controlling raw material is 140 DEG C, is passed through argon, and the gas flow of argon is 30sccm, the reative cell speed of rotation
For 45r/min, response time 30min, after reaction terminates, it is cooled to room temperature, takes out；
After testing, in powder body material, the thickness of the Co metal nanoparticle layer of cladding is 90nm；
(5) carry out high-temperature calcination, temperature 1100 DEG C, time 2h by putting into mould after the powder body mix homogeneously after cladding, treat cold
But to room temperature, take out, i.e. obtain cobalt cladded type titanium Hardmetal materials.
Embodiment 5:
Preparing cobalt cladded type titanium Hardmetal materials according to the preparation method that invention provides, step is as follows:
(1) weighing titanium carbide, aluminium carbide, carborundum and niobium carbide powder, put into ball mill, mix homogeneously to mean diameter is
2um；
(2) powder is put into chemical vapor deposition reaction chamber, be evacuated to 100Pa, be preheated to 700 DEG C, be front with cobaltocene
Driving body, the evaporating temperature controlling raw material is 140 DEG C, is passed through argon, and the gas flow of argon is 20sccm, and reative cell rotates speed
Rate is 60r/min, response time 30min, after reaction terminates, is cooled to room temperature, takes out；
After testing, in powder body material, the thickness of the Co metal nanoparticle layer of cladding is 100nm；
(3) high-temperature calcination is carried out by putting into mould after the powder body mix homogeneously after cladding, temperature 8000-1200 DEG C, time 1-3h,
It is cooled to room temperature, takes out, i.e. obtain cobalt cladded type titanium Hardmetal materials.
Technical scheme disclosed in patent documentation " a kind of vanadium carbide titanium based hard alloy " according to Application No. 201310195627.2
Prepare hard alloy, for matched group；Above-described embodiment and matched group are used the hardness of Vickers hardness indentation method beta alloy and breaks
Splitting toughness, the intensity of pulling method test material, result is as shown in table 1:
The performance measurement of table 1 hard alloy
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Matched group |
| Consistency/% | 98.3 | 98.5 | 98.8 | 98.2 | 98.5 | 94.7 |
| Hardness/GPa | 26 | 26 | 27 | 26 | 26 | 22 |
| Toughness/MPa m1/2 | 15.8 | 16.2 | 16.7 | 16.1 | 16.4 | 11.2 |
| Intensity/MPa | 990 | 1020 | 1080 | 1010 | 990 | 980 |
As seen from the above table, the consistency of embodiment 1-5 hard alloy is higher, is above matched group, and this receives through Co with powder body material
Grain of rice sublayer is coated with, and after re-sintering, improves consistency；
On hardness performance, embodiment 1-5 and matched group gap are little, and premise is that the Ti content in embodiment 1-5 is higher, shows
Adding and the cladding of Co nanoparticle layers of other elements, effectively raise the hardness of material；
On toughness properties, embodiment 1-5 and matched group gap are the most obvious, this is because the carbide group warp of four kinds of elements
After Co nanoparticle layers cladding, toughness is improved, and wherein the toughness of embodiment 3 is best, in embodiment 3, and group powder body
Mean diameter be 0.1, the thickness of Co nanoparticle layers is moderate, shows that toughness is subject to be coated with the particle diameter of silt and Co nanoparticle
The impact of the thickness of layer；
In hot strength, embodiment 1-5 difference is little, is respectively provided with good hot strength.
In sum, cobalt cladded type titanium Hardmetal materials of the present invention and preparation method thereof, it is provided that one has high-compactness,
The Hardmetal materials of high tenacity.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.To these
The multiple amendment of embodiment will be apparent from for those skilled in the art, generic principles defined herein
Can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not be by
It is limited to the embodiments shown herein, and is to fit to consistent with principles disclosed herein and features of novelty the widest
Scope.
Claims (6)
1. the preparation method of a cobalt cladded type titanium Hardmetal materials, it is characterised in that preparation process is as follows:
(1) according to the amount of material than weighing the oxide of titanium, aluminum, silicon and niobium, mix homogeneously,
Wherein the amount ratio of titanium, aluminum, silicon and niobium material in the material is: 1:0.05-0.15:0.06-0.18:0.03-0.09；
(2) compound is put in high temperature carbonization furnace and carry out carbonization, temperature 1800 DEG C-2300 DEG C, time 1-3h；
(3) after carbonization terminates, it is cooled to room temperature, compound is taken out, puts into grinder and be ground to powder；
(4) powder is put into chemical vapor deposition reaction chamber, it is evacuated to 10-100Pa, being preheated to 600-800 DEG C, with cobaltocene as presoma, the evaporating temperature controlling raw material is 130-160 DEG C, it is passed through argon, the reative cell speed of rotation is 30-60r/min, response time 30-60min, after reaction terminates, it is cooled to room temperature, takes out；
(5) carry out high-temperature calcination, temperature 1100 DEG C, time 1-3h by putting into mould after the powder body mix homogeneously after cladding, be cooled to room temperature, take out, i.e. obtain cobalt cladded type titanium Hardmetal materials.
The preparation method of cobalt cladded type titanium Hardmetal materials the most according to claim 1, it is characterised in that: in material, the amount of the material of titanium and niobium is than for 1:0.05.
The preparation method of cobalt cladded type titanium Hardmetal materials the most according to claim 1, it is characterised in that: metallic cobalt nanoparticle layers, thickness is 70-120nm.
The preparation method of cobalt cladded type titanium Hardmetal materials the most according to claim 1, it is characterised in that: the mean diameter of the powder that step (3) obtains is 0.1-10 μm.
The preparation method of cobalt cladded type titanium Hardmetal materials the most according to claim 1, it is characterised in that: the gas flow of the argon being passed through in step (4) chemical vapour deposition reaction is 10-50sccm.
The preparation method of cobalt cladded type titanium Hardmetal materials the most according to claim 1, it is characterized in that: weigh titanium carbide, aluminium carbide, carborundum and niobium carbide powder, put into ball mill, after mix homogeneously, carry out step (4) and step (5), obtain cobalt cladded type titanium Hardmetal materials.
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