CN105463225A - Ti3AlC2-SiC phase cooperative reinforcement Ni-based composite material and manufacturing method thereof - Google Patents

Ti3AlC2-SiC phase cooperative reinforcement Ni-based composite material and manufacturing method thereof Download PDF

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CN105463225A
CN105463225A CN201510890104.9A CN201510890104A CN105463225A CN 105463225 A CN105463225 A CN 105463225A CN 201510890104 A CN201510890104 A CN 201510890104A CN 105463225 A CN105463225 A CN 105463225A
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sic
alc
powder
ball
ti3alc2
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CN105463225B (en
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艾桃桃
王维
李文虎
于琦
袁新强
邹祥宇
孛海娃
冯小明
刘博洲
邓志峰
罗清威
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Shaanxi University of Technology
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    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides

Abstract

The invention provides a Ti3AlC2-SiC phase cooperative reinforcement Ni-based composite material and a manufacturing method thereof. The method includes the steps that SiC powder and Ti3AlC2 powder are subjected to dry-method high-energy ball milling to form a Ti3AlC2-SiC core-shell structure, the Ti3AlC2-SiC core-shell structure and Ni powder are subjected to wet-method ball milling to be evenly mixed, and after the mixture is dried, vacuum hot pressing and sintering are performed. By the adoption of the method, the SiC powder and the Ti3AlC2 powder are subjected to ball milling to obtain the Ti3AlC2-SiC core-shell structure, the advantages of the SiC powder and the Ti3AlC2 powder can be brought into full play, the strong electric conductivity of Ti3AlC2 cannot affect the electric conductivity of Ni-based alloy, the toughness enhancement effect of Ti3AlC2 can be brought into play, and the strength and rigidity of the Ni-based alloy can be greatly improved through the high strength and high rigidity of SiC. By the adoption of the Ti3AlC2-SiC phase cooperative reinforcement Ni-based composite material and the manufacturing method of the material, a manufacturing process is simple and feasible, the sintering temperature is low, manufacturing cost is low, the manufactured Ni-based composite material has the remarkable beneficial effects of being high in strength, toughness and the like, and the strict requirements of the modern industry for the higher high-temperature strength and the higher working temperature of high-temperature alloy can be met.

Description

A kind of Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites and preparation method thereof
Technical field
The invention belongs to Materials Science and Engineering field, be specifically related to a kind of Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites and preparation method thereof.
Background technology
Ni based high-temperature alloy has that Heat stability is good, hot strength and hardness are high, corrosion-resistant, the feature such as to resistance to wear, because its maximum operation (service) temperature exceeds about 150 ~ 200 DEG C than iron-based, cobalt base superalloy, be therefore widely used for making the engine key parts such as the turbine disk.Along with the development of modern industry, due to the further raising of the working temperatures such as the turbine disk, require that alloy has better hot strength and working temperature.At present, second-phase strength has become a kind of effective means.By second-phase strength, the intensity of alloy and hardness are improved, the ceramic enhancement phase used has SiC fiber, Al 2o 3particle, WC particle, Y 2o 3particle etc.
Ti 3alC 2double carbide has the dual excellent properties of metal and pottery concurrently, and fusing point is high, room temperature heat conduction and conducting electricity very well, Young's modulus and shearing modulus high, Heat stability is good, corrosion-resistant, antioxidant property is good, can mechanical workout, and high temperature also has plasticity.Make us most mysterious, wear resistance and self lubricity are very outstanding, receive the extensive concern of investigator, become the wild phase that Ni based high-temperature alloy is ideal.
SiC ceramic not only has excellent ambient temperature mechanical properties, as high bending strength, excellent oxidation-resistance, good erosion resistance, high resistance to wearing and low frictional coefficient, and mechanical behavior under high temperature (intensity, creep-resistant property etc.) is very high, Chang Zuowei wild phase is for improving the performance of other pottery or metal.But so far, also do not have investigator to utilize nucleocapsid structure Ti 3alC 2-SiC particle works in coordination with the relevant report strengthening Ni based composites.
Summary of the invention
The object of the present invention is to provide a kind of Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites and preparation method thereof, and the method has given full play to Ti 3alC 2with the advantage of SiC, can improve the over-all properties of Ni based high-temperature alloy, and preparation is simple, sintering temperature is low, and preparation cost is low.
For achieving the above object, the technical solution used in the present invention is:
A kind of Ti 3alC 2-SiC is the collaborative preparation method strengthening Ni based composites mutually, comprises the following steps:
1) be that 1:1 ~ 1:10 is by SiC powder and Ti in mass ratio 3alC 2load in ball grinder after powder mixing, dry ball milling 10 ~ 30h, obtains taking SiC as core, Ti 3alC 2for the nucleocapsid structure Ti of shell 3alC 2-SiC powder;
2) by massfraction, by the nucleocapsid structure Ti of 5 ~ 50% 3alC 2-SiC powder with 50 ~ 95% Ni powder mix after load in ball grinder, wet ball grinding 30 ~ 90min, then carries out drying treatment to ball milling product, obtains composite granule;
3) loaded in mould by composite granule and carry out vacuum heating-press sintering solidification, arranging pressure is 10 ~ 30MPa, and from the sintering temperature of room temperature to 900 DEG C ~ 1150 DEG C, insulation 0 ~ 60min, then with stove naturally cooling, namely obtains Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites.
Described step 1) in ball milling time ratio of grinding media to material be 6:1 ~ 10:1, drum's speed of rotation is 500 ~ 900r/min.
Described step 2) in ball milling time ratio of grinding media to material be 3:1 ~ 5:1, ball-milling additive is ethanol, and drum's speed of rotation is 200 ~ 500r/min.
Described step 1) and step 2) in use ball grinder be stainless steel jar mill, the abrading-ball of use is stainless steel abrading-ball, and the ball mill of use is planetary ball mill.
Described step 3) in temperature rise rate be 8 ~ 10 DEG C/min.
Obtained Ti 3alC 2-SiC works in coordination with wild phase in enhancing Ni based composites mutually and is evenly distributed in matrix phase, and wherein Ni is matrix phase, Ti 3alC 2-SiC is wild phase mutually, and Ti 3alC 2-SiC is mutually in being core, Ti with SiC 3alC 2for the nucleocapsid structure of shell.
The flexural strength of this matrix material is 1059.17 ~ 1101.36MPa, and fracture toughness property is 22.14 ~ 27.92MPam 1/2.
Relative to prior art, beneficial effect of the present invention is:
Ti provided by the invention 3alC 2-SiC is the collaborative preparation method strengthening Ni based composites mutually, first by SiC powder and Ti 3alC 2powder carries out dry method high-energy ball milling, forms Ti 3alC 2-SiC nucleocapsid structure, then mixes through wet ball grinding with Ni powder, carries out vacuum heating-press sintering, obtain Ti after drying 3alC 2-SiC is collaborative mutually strengthens Ni based composites.The invention has the advantages that, by the SiC powder of high-strength high rigidity and high thermal stability and the stronger compliant conductive Ti of resistance of oxidation 3alC 2powder carries out dry method high-energy ball milling, and obtaining with SiC is core, Ti 3alC 2for the nucleocapsid structure Ti of shell 3alC 2-SiC powder, for strengthening Ni base alloy, both can not reduce the electroconductibility of Ni base alloy, can give full play to Ti again 3alC 2with the advantage of SiC, Ti 3alC 2electroconductibility can not affect by force the conductivity of Ni base alloy, also can play its toughening effect, and the high-strength height of SiC can improve intensity and the hardness of Ni base alloy firmly greatly, can realize the further improvement of Ni based composites performance.And the method preparation technology is simple, easy handling, sintering temperature is low, and preparation cost is low, applicable manufacture needs high strength, high abrasion, resistant to elevated temperatures component.
The Ti that the present invention obtains 3alC 2-SiC mutually collaborative Ni the based composites that strengthens has the overall excellent properties being better than its each component property, there is the distinguishing feature such as high strength, high tenacity, and the nucleocapsid structure intrinsic due to it and make the controllability of its performance strong, modern industry can be met and to superalloy, there is higher hot strength and the rigors of working temperature, be expected to the most hot-end component for the manufacture of aero-jet engine and various industrial gas engine, show application prospect widely at industrial circles such as aerospace, communications and transportation, machinofacture.
Further, confirm through experiment, the Ti that the present invention obtains 3alC 2-SiC is collaborative mutually strengthens Ni based composites, and its flexural strength is up to 1059.17 ~ 1101.36MPa, and fracture toughness property is up to 22.14 ~ 27.92MPam 1/2, intensity and the toughness of Ni base alloy is strengthened far above general pottery.
Accompanying drawing explanation
Fig. 1 is Ti prepared by embodiment 1 3alC 2-SiC is the collaborative light micrograph strengthening Ni based composites mutually.
Fig. 2 is Ti prepared by embodiment 2 3alC 2-SiC is the collaborative light micrograph strengthening Ni based composites mutually.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment 1
1) by SiC/Ti 3alC 2the powder mix that (mass ratio) is 1:1 loads in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 8:1, and vacuumize rear employing planetary ball mill dry method high-energy ball milling 10h, drum's speed of rotation is 600r/min, obtains nucleocapsid structure Ti 3alC 2-SiC powder.
2) SiC-Ti that massfraction is 10% is taken 3alC 2powder and 90% Ni powder load in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 3:1 take ethanol as ball-milling additive, wet ball grinding 30min, drum's speed of rotation is 200r/min, and powder is mixed, then carry out cryodrying process, obtain composite granule.
3) dried composite granule is loaded in mould, carry out vacuum heating-press sintering solidification, with the sintering temperature of the temperature rise rate of 10 DEG C/min from room temperature to 1000 DEG C, insulation 30min, in this process, applied pressure is 25MPa, then with stove naturally cooling, namely obtains Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites.
Fig. 1 is Ti prepared by embodiment 1 3alC 2-SiC is the collaborative light micrograph strengthening Ni based composites mutually, as seen from Figure 1, and obtained Ti 3alC 2-SiC is collaborative mutually, and to strengthen Ni based composite material structure fine and close, and wild phase particle is tiny and in Dispersed precipitate in matrix phase.
Three-point bending method is adopted to measure the Ti of embodiment 1 preparation 3alC 2-SiC mutually collaborative the flexural strength strengthening Ni based composites is 1101.36MPa, and adopting three-point bending Single edge notch beam (SENB) to measure its fracture toughness property is 27.92MPam 1/2.
Embodiment 2
1) by SiC/Ti 3alC 2the powder mix that (mass ratio) is 1:2 loads in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 8:1, and vacuumize rear employing planetary ball mill dry method high-energy ball milling 10h, drum's speed of rotation is 600r/min, obtains nucleocapsid structure Ti 3alC 2-SiC powder.
2) SiC-Ti that massfraction is 15% is taken 3alC 2powder and 85% Ni powder load in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 3:1 take ethanol as ball-milling additive, wet ball grinding 30min, drum's speed of rotation is 200r/min, and powder is mixed, then carry out cryodrying process, obtain composite granule.
3) dried composite granule is loaded in mould, carry out vacuum heating-press sintering solidification, with the sintering temperature of the temperature rise rate of 10 DEG C/min from room temperature to 1000 DEG C, insulation 30min, in this process, applied pressure is 25MPa, then with stove naturally cooling, namely obtains Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites.
Fig. 2 is Ti prepared by embodiment 2 3alC 2-SiC is the collaborative light micrograph strengthening Ni based composites mutually, as seen from Figure 2, and obtained Ti 3alC 2-SiC is collaborative mutually strengthens the densification of Ni based composite material structure, wild phase content showed increased, and the distribution of wild phase in matrix phase is comparatively even, but after content increase, agglomeration can aggravate.
Three-point bending method is adopted to measure the Ti of embodiment 2 preparation 3alC 2-SiC mutually collaborative the flexural strength strengthening Ni based composites is 1059.17MPa, and adopting three-point bending Single edge notch beam (SENB) to measure its fracture toughness property is 22.14MPam 1/2.
Embodiment 3
1) by SiC/Ti 3alC 2the powder mix that (mass ratio) is 1:4 loads in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 6:1, and vacuumize rear employing planetary ball mill dry method high-energy ball milling 15h, drum's speed of rotation is 900r/min, obtains nucleocapsid structure Ti 3alC 2-SiC powder.
2) SiC-Ti that massfraction is 5% is taken 3alC 2powder and 95% Ni powder load in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 4:1 take ethanol as ball-milling additive, wet ball grinding 40min, drum's speed of rotation is 500r/min, and powder is mixed, then carry out cryodrying process, obtain composite granule.
3) dried composite granule is loaded in mould, carry out vacuum heating-press sintering solidification, with the sintering temperature of the temperature rise rate of 8 DEG C/min from room temperature to 900 DEG C, insulation 60min, in this process, applied pressure is 30MPa, then with stove naturally cooling, namely obtains Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites.
Embodiment 4
1) by SiC/Ti 3alC 2the powder mix that (mass ratio) is 1:5 loads in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 7:1, and vacuumize rear employing planetary ball mill dry method high-energy ball milling 20h, drum's speed of rotation is 800r/min, obtains nucleocapsid structure Ti 3alC 2-SiC powder.
2) SiC-Ti that massfraction is 20% is taken 3alC 2powder and 80% Ni powder load in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 5:1 take ethanol as ball-milling additive, wet ball grinding 50min, drum's speed of rotation is 400r/min, and powder is mixed, then carry out cryodrying process, obtain composite granule.
3) dried composite granule is loaded in mould, carry out vacuum heating-press sintering solidification, with the sintering temperature of the temperature rise rate of 8.5 DEG C/min from room temperature to 1150 DEG C, insulation 0min, in this process, applied pressure is 10MPa, then with stove naturally cooling, namely obtains Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites.
Embodiment 5
1) by SiC/Ti 3alC 2the powder mix that (mass ratio) is 1:6 loads in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 9:1, and vacuumize rear employing planetary ball mill dry method high-energy ball milling 25h, drum's speed of rotation is 700r/min, obtains nucleocapsid structure Ti 3alC 2-SiC powder.
2) SiC-Ti that massfraction is 30% is taken 3alC 2powder and 70% Ni powder load in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 3.5:1 take ethanol as ball-milling additive, wet ball grinding 60min, drum's speed of rotation is 350r/min, and powder is mixed, then carry out cryodrying process, obtain composite granule.
3) dried composite granule is loaded in mould, carry out vacuum heating-press sintering solidification, with the sintering temperature of the temperature rise rate of 9 DEG C/min from room temperature to 1100 DEG C, insulation 10min, in this process, applied pressure is 15MPa, then with stove naturally cooling, namely obtains Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites.
Embodiment 6
1) by SiC/Ti 3alC 2the powder mix that (mass ratio) is 1:8 loads in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 10:1, vacuumize rear employing planetary ball mill dry method high-energy ball milling 30h, drum's speed of rotation is 500r/min, obtains nucleocapsid structure Ti 3alC 2-SiC powder.
2) SiC-Ti that massfraction is 40% is taken 3alC 2powder and 60% Ni powder load in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 4.5:1 take ethanol as ball-milling additive, wet ball grinding 75min, drum's speed of rotation is 300r/min, and powder is mixed, then carry out cryodrying process, obtain composite granule.
3) dried composite granule is loaded in mould, carry out vacuum heating-press sintering solidification, with the sintering temperature of the temperature rise rate of 9.5 DEG C/min from room temperature to 950 DEG C, insulation 50min, in this process, applied pressure is 20MPa, then with stove naturally cooling, namely obtains Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites.
Embodiment 7
1) by SiC/Ti 3alC 2the powder mix that (mass ratio) is 1:10 loads in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 7.5:1, vacuumize rear employing planetary ball mill dry method high-energy ball milling 18h, drum's speed of rotation is 650r/min, obtains nucleocapsid structure Ti 3alC 2-SiC powder.
2) SiC-Ti that massfraction is 50% is taken 3alC 2powder and 50% Ni powder load in stainless steel jar mill, stainless steel abrading-ball/powder mix (mass ratio) 4:1 take ethanol as ball-milling additive, wet ball grinding 90min, drum's speed of rotation is 250r/min, and powder is mixed, then carry out cryodrying process, obtain composite granule.
3) dried composite granule is loaded in mould, carry out vacuum heating-press sintering solidification, with the sintering temperature of the temperature rise rate of 10 DEG C/min from room temperature to 1050 DEG C, insulation 20min, in this process, applied pressure is 28MPa, then with stove naturally cooling, namely obtains Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites.
Just schematically, not form limiting the scope of the invention, the researchist in affiliated field is at Ti provided by the invention for the above-mentioned particular content be in conjunction with the embodiments described 3alC 2-SiC is mutually on the collaborative basis strengthening the preparation method of Ni based composites, do not need to pay creative work and the various amendment made or distortion still in protection scope of the present invention.

Claims (7)

1. a Ti 3alC 2-SiC is the collaborative preparation method strengthening Ni based composites mutually, it is characterized in that, comprises the following steps:
1) be that 1:1 ~ 1:10 is by SiC powder and Ti in mass ratio 3alC 2load in ball grinder after powder mixing, dry ball milling 10 ~ 30h, obtains taking SiC as core, Ti 3alC 2for the nucleocapsid structure Ti of shell 3alC 2-SiC powder;
2) by massfraction, by the nucleocapsid structure Ti of 5 ~ 50% 3alC 2-SiC powder with 50 ~ 95% Ni powder mix after load in ball grinder, wet ball grinding 30 ~ 90min, then carries out drying treatment to ball milling product, obtains composite granule;
3) loaded in mould by composite granule and carry out vacuum heating-press sintering solidification, arranging pressure is 10 ~ 30MPa, and from the sintering temperature of room temperature to 900 DEG C ~ 1150 DEG C, insulation 0 ~ 60min, then with stove naturally cooling, namely obtains Ti 3alC 2-SiC is collaborative mutually strengthens Ni based composites.
2. Ti according to claim 1 3alC 2-SiC is the collaborative preparation method strengthening Ni based composites mutually, it is characterized in that: described step 1) in ball milling time ratio of grinding media to material be 6:1 ~ 10:1, drum's speed of rotation is 500 ~ 900r/min.
3. Ti according to claim 1 3alC 2-SiC is the collaborative preparation method strengthening Ni based composites mutually, it is characterized in that: described step 2) in ball milling time ratio of grinding media to material be 3:1 ~ 5:1, ball-milling additive is ethanol, and drum's speed of rotation is 200 ~ 500r/min.
4. Ti according to claim 1 3alC 2-SiC is the collaborative preparation method strengthening Ni based composites mutually, it is characterized in that: described step 1) and step 2) in the ball grinder of use be stainless steel jar mill, the abrading-ball of use is stainless steel abrading-ball, and the ball mill of use is planetary ball mill.
5. Ti according to claim 1 3alC 2-SiC is the collaborative preparation method strengthening Ni based composites mutually, it is characterized in that: described step 3) in temperature rise rate be 8 ~ 10 DEG C/min.
6. the Ti in claim 1-5 described in any one 3alC 2the Ti that the preparation method that-SiC works in coordination with enhancing Ni based composites mutually obtains 3alC 2-SiC is collaborative mutually strengthens Ni based composites, and it is characterized in that: in this matrix material, wild phase is evenly distributed in matrix phase, wherein Ni is matrix phase, Ti 3alC 2-SiC is wild phase mutually, and Ti 3alC 2-SiC is mutually in being core, Ti with SiC 3alC 2for the nucleocapsid structure of shell.
7. Ti according to claim 6 3alC 2-SiC is collaborative mutually strengthens Ni based composites, it is characterized in that: the flexural strength of this matrix material is 1059.17 ~ 1101.36MPa, and fracture toughness property is 22.14 ~ 27.92MPam 1/2.
CN201510890104.9A 2015-12-07 2015-12-07 A kind of Ti3AlC2SiC phases cooperate with enhancing Ni based composites and preparation method thereof Expired - Fee Related CN105463225B (en)

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