CN107699746A - Nano titanium carbide particle enhancing ADC12 aluminum matrix composites and preparation method thereof - Google Patents

Nano titanium carbide particle enhancing ADC12 aluminum matrix composites and preparation method thereof Download PDF

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Publication number
CN107699746A
CN107699746A CN201710880169.4A CN201710880169A CN107699746A CN 107699746 A CN107699746 A CN 107699746A CN 201710880169 A CN201710880169 A CN 201710880169A CN 107699746 A CN107699746 A CN 107699746A
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China
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titanium carbide
aluminium
nano titanium
aluminum matrix
matrix composites
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CN201710880169.4A
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Inventor
周波
徐卫国
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Changshou City Hengtai Precision Metal Products Co Ltd
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Changshou City Hengtai Precision Metal Products Co Ltd
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Priority to CN201710880169.4A priority Critical patent/CN107699746A/en
Publication of CN107699746A publication Critical patent/CN107699746A/en
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/10Alloys containing non-metals
    • C22C1/1036Alloys containing non-metals starting from a melt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent

Abstract

A kind of nano titanium carbide particle enhancing ADC12 aluminum matrix composites and preparation method thereof, step:By nano silicon carbide titanium powder and aluminium powder input ball mill ball milling, the mixed-powder of nano titanium carbide and aluminium is obtained;Aluminium ingot is put into smelting furnace, aluminium silicon intermediate alloy is added into smelting furnace again, and copper is added in backward smelting furnace, the mixed-powder of nano titanium carbide and aluminium is added in most backward smelting furnace, the content for adding refining agent scarfing cinder degasification and analyzing tapping sample and adjust chemical element is:9.6 12.0% silicon, 1.5 3.5% copper and 1.0 3.0% nano titanium carbide, surplus are aluminium, are skimmed, and moulding by casting, obtain base to be post-processed;Base to be post-processed is put into heat-treatment furnace and heats and is incubated, goes out heat-treatment furnace and carries out water quenching, after water quenching, heats and is incubated again again, obtain finished product.Improve ADC12 aluminum substrates microstructure and improve mechanical property;Simple process and stably, prepare cost it is low, environmentally friendly.

Description

Nano titanium carbide particle enhancing ADC12 aluminum matrix composites and preparation method thereof
Technical field
The invention belongs to metal-base composites and its preparing technical field, and in particular to a kind of nano titanium carbide particle increases Strong ADC12 aluminum-base composite materials, and further relate to its preparation method.
Background technology
Foregoing ADC12 is the Japanese trade mark, also known as No. 12 aluminium material, the alloy designations YL113 domestic equivalent to China(Alloy The trade mark is YZ Alsi11Cu3), execution standard is GB/T15115-2009.U.S.'s alloy designations are 383, and execution standard is: ASTMB85-03(Standard Specification for Aluminum-Alloy Die Castings).
Particle enhanced aluminum-based composite material has high specific strength, high ratio modulus(High elastic modulus), thermal coefficient of expansion is small, with And the advantages that good wearability, it is widely used in the fields such as Aero-Space, communications and transportation as lightweight structure material. In recent years, developing rapidly with industries such as domestic and international Aero-Space and communications and transportation, to particle enhanced aluminum-based composite material It is required that more and more higher.Because the enhancing particle size in current grain reinforced metal aluminum matrix composite is mainly micron order(Such as CN103031462A), thus can reduce plasticity while composite material strength is improved.Research shows, by enhancing phase size drop To nanoscale, the plasticity of composite can be improved while intensity is improved and use and widen its application, will be detailed below being situated between The technical scheme to continue is caused under this background.
The content of the invention
The task of the present invention is that providing one kind helps to meet to improve plasticity while intensity is improved and use and widen The nano titanium carbide particle enhancing ADC12 aluminum matrix composites of application requirement.
Another task of the present invention is to provide a kind of preparation of nano titanium carbide particle enhancing ADC12 aluminum matrix composites Method, this method simple process and stably, prepare low cost, lossless environment and the nano titanium carbide particle increasing that can ensures preparation Strong ADC12 aluminum matrix composites embody described technique effect comprehensively.
What the top priority of the present invention was performed by, a kind of nano titanium carbide particle strengthens ADC12 aluminum-base composite materials Material, its chemical element and its quality % contents are:9.6-12.0% silicon, 1.5-3.5% copper, 1.0-3.0% sodium rice titanium carbide, Surplus is aluminium.
Another task of the present invention is to provide a kind of preparation of nano titanium carbide particle enhancing ADC12 aluminum matrix composites Method, comprise the following steps:
A the mixed-powder of nano titanium carbide and aluminium) is prepared, nano silicon carbide titanium powder and aluminium powder are put into ball mill ball milling and controlled The ball milling speed and Ball-milling Time of ball mill processed, obtain the mixed-powder of nano titanium carbide and aluminium;
B) melting, first aluminium ingot is put into smelting furnace, is heated to 750-800 DEG C and keeping temperature is constant, then add into smelting furnace Enter aluminium silicon intermediate alloy, when aluminium silicon intermediate alloy is completely melt and is stood when temperature recovery is to 750-800 DEG C, and melt backward Copper is added in furnace, after copper is completely melt again stand and temperature is risen to 800-850 DEG C, in most backward smelting furnace addition by Step A)Obtained nano titanium carbide and the mixed-powder of aluminium, stirs and cools, and adds refining agent scarfing cinder degasification and to liquation Sampling analysis and adjust chemical element quality % contents be:9.6-12.0% silicon, 1.5-3.5% copper and 1.0-3.0% receive Rice titanium carbide, surplus is aluminium, and then is stood, and skims, moulding by casting, obtains base to be post-processed;
C) post-process, will be by step B)Obtained base to be post-processed, which is put into heat-treatment furnace, to be heated and is incubated, and is gone out heat-treatment furnace and is entered Water-filling is quenched, and after water quenching, is heated and is incubated again again, obtains nano titanium carbide particle enhancing ADC12 aluminum matrix composites.
In the specific embodiment of the present invention, step A)Described in control ball mill ball milling speed and ball milling Time is that ball milling speed and Ball-milling Time are controlled as into 100-200r/min and 12-24h.
In another specific embodiment of the present invention, step A)Described in nano silicon carbide titanium powder and both aluminium powders Weight ratio be 2.5-3.5: 6-8.
In another specific embodiment of the present invention, the particle size of the nano silicon carbide titanium powder is received for 40-100 Rice.
In another specific embodiment of the present invention, step B)Described in aluminium silicon intermediate alloy be element silicon weight Amount accounts for 20% Al-20Si alloys of gross weight.
In the also specific embodiment of the present invention, step B)Described in time for standing be 8-12min;It is described The time stood again is 12-18min;Time that is described and then standing is 5-10min.
In a still more specific embodiment of the invention, step B)Described in time for stirring be 2-5min;It is described Cooling is to cool the temperature to 740-750 DEG C.
The present invention's and then in a specific embodiment, step C)Described in the heating-up temperature that heats in heat-treatment furnace For 500-530 DEG C, the time of the insulation is 6-12h.
Step C in yet a further embodiment of the present invention)Described in the temperature heated again be 150- 170 DEG C, the time being incubated again is 4-10h.
Technical scheme provided by the invention has technical effect that:Due to adding the rational nano-sized carbon of taken amount in formula Change titanium, thus ADC12 aluminum substrates microstructure can be improved and improve mechanical property, be met and improved while intensity is improved Plasticity and use and widen the requirement for answering scope;The preparation method of offer have simple process and stably, prepare cost it is low, to environment Aforementioned techniques effect that is lossless and can ensureing the nano titanium carbide particle prepared enhancing ADC12 aluminum matrix composites is able to comprehensively The strong point of embodiment.
Embodiment
Embodiment 1:
A the mixed-powder of nano titanium carbide and aluminium) is prepared, is that 80-100 nano silicon carbides titanium powder and aluminium powder press weight by particle size For amount than putting into ball mill ball millings for 2.5: 7, the ball milling speed control of ball mill is 100r/min, Ball-milling Time 18h, is received The mixed-powder of rice titanium carbide and aluminium;
B) melting, first aluminium ingot is put into(Input)750 DEG C are heated in smelting furnace and keeping temperature is constant at 750 DEG C, then to molten Aluminium silicon intermediate alloy is added in furnace, that is, the weight for adding element silicon accounts for 20% Al-20Si alloys of gross weight, when in aluminium silicon Between 12min is stood after alloy melting and when temperature recovery is to 750 DEG C, and copper is added in backward smelting furnace, when copper is completely molten 16min is stood after change again and temperature is risen to 800 DEG C, addition is by step A in most backward smelting furnace)Obtain i.e. by step A) The mixed-powder of the nano titanium carbide and aluminium that prepare, stir 5min and be cooled to 740 DEG C, add refining agent scarfing cinder degasification simultaneously And the quality % contents for analyzing tapping sample and adjusting the chemical element of liquation are:9.6% silicon, 3.5% copper and 1% nanometer Titanium carbide, surplus are aluminium, stand 10min, skim, moulding by casting, obtain base to be post-processed;
C) post-process, will be by step B)Obtained base to be post-processed is put into be introduced into heat-treatment furnace and is heated to 530 DEG C and is incubated 6h, goes out heat-treatment furnace and carries out water quenching, and heating furnace is introduced after water quenching and is heated to 170 DEG C and is incubated 4h again, obtains nano titanium carbide Particle strengthens ADC12 aluminum matrix composites.After testing, the nano titanium carbide particle strengthens ADC12 aluminum matrix composite T6 states Room-temperature mechanical property is as follows:Yield strength is 154MPa, tensile strength 195MPa, elongation percentage 11.47%.
Embodiment 2:
A the mixed-powder of nano titanium carbide and aluminium) is prepared, is that 60-80 nano silicon carbides titanium powder and aluminium powder press weight by particle size For amount than putting into ball mill ball millings for 3: 8, the ball milling speed control of ball mill is 200r/min, Ball-milling Time 24h, obtains nanometer The mixed-powder of titanium carbide and aluminium;
B) melting, first aluminium ingot is put into(Input)800 DEG C are heated in smelting furnace and keeping temperature is constant at 800 DEG C, then to molten Aluminium silicon intermediate alloy is added in furnace, that is, the weight for adding element silicon accounts for 20% Al-20Si alloys of gross weight, when in aluminium silicon Between 8min is stood after alloy melting and when temperature recovery is to 800 DEG C, and copper is added in backward smelting furnace, when copper is completely melt Stand 12min again afterwards and temperature is risen to 850 DEG C, addition is by step A in most backward smelting furnace)Obtain i.e. by step A)System The mixed-powder of the standby nano titanium carbide and aluminium, stir 2min and be cooled to 750 DEG C, add refining agent scarfing cinder degasification and Tapping sample is analyzed and the quality % contents of the chemical element of adjustment liquation are:12% silicon, 1.5% copper and 3% nano-sized carbon Change titanium, surplus is aluminium, stands 5min, skims, moulding by casting, obtain base to be post-processed;
C) post-process, will be by step B)Obtained base to be post-processed is put into be introduced into heat-treatment furnace and is heated to 500 DEG C and is incubated 12h, goes out heat-treatment furnace and carries out water quenching, and heating furnace is introduced after water quenching and is heated to 160 DEG C and is incubated 7h again, obtains nano titanium carbide Particle strengthens ADC12 aluminum matrix composites.After testing, the nano titanium carbide particle strengthens ADC12 aluminum matrix composite T6 states Room-temperature mechanical property is as follows:Yield strength is 185MPa, tensile strength 246MPa, elongation percentage 11.81%.
Embodiment 3:
A the mixed-powder of nano titanium carbide and aluminium) is prepared, is that 40-60 nano silicon carbides titanium powder and aluminium powder press weight by particle size For amount than putting into ball mill ball millings for 3.5: 6, the ball milling speed control of ball mill is 150r/min, Ball-milling Time 12h, is received The mixed-powder of rice titanium carbide and aluminium;
B) melting, first aluminium ingot is put into(Input)780 DEG C are heated in smelting furnace and keeping temperature is constant at 780 DEG C, then to molten Aluminium silicon intermediate alloy is added in furnace, that is, the weight for adding element silicon accounts for 20% Al-20Si alloys of gross weight, when in aluminium silicon Between 10min is stood after alloy melting and when temperature recovery is to 800 DEG C, and copper is added in backward smelting furnace, when copper is completely molten 18min is stood after change again and temperature is risen to 825 DEG C, addition is by step A in most backward smelting furnace)Obtain i.e. by step A) The mixed-powder of the nano titanium carbide and aluminium that prepare, stir 4min and be cooled to 745 DEG C, add refining agent scarfing cinder degasification simultaneously And the quality % contents for analyzing tapping sample and adjusting the chemical element of liquation are:10.8% silicon, 2.5% copper and 2% are received Rice titanium carbide, surplus is aluminium, stands 8min, skims, moulding by casting, obtain base to be post-processed;
C) post-process, will be by step B)Obtained base to be post-processed is put into be introduced into heat-treatment furnace and is heated to 515 DEG C and is incubated 9h, goes out heat-treatment furnace and carries out water quenching, and heating furnace is introduced after water quenching and is heated to 150 DEG C and is incubated 10h again, obtains nano titanium carbide Particle strengthens ADC12 aluminum matrix composites.After testing, the nano titanium carbide particle strengthens ADC12 aluminum matrix composite T6 states Room-temperature mechanical property is as follows:Yield strength is 161MPa, tensile strength 217MPa, elongation percentage 7.6%.

Claims (10)

1. a kind of nano titanium carbide particle strengthens ADC12 aluminum matrix composites, it is characterised in that its chemical element and its quality % contain Measure and be:9.6-12.0% silicon, 1.5-3.5% copper, 1.0-3.0% sodium rice titanium carbide, surplus is aluminium.
2. a kind of preparation method of nano titanium carbide particle enhancing ADC12 aluminum matrix composites as claimed in claim 1, it is special Sign is to comprise the following steps:
A the mixed-powder of nano titanium carbide and aluminium) is prepared, nano silicon carbide titanium powder and aluminium powder are put into ball mill ball milling and controlled The ball milling speed and Ball-milling Time of ball mill processed, obtain the mixed-powder of nano titanium carbide and aluminium;
B) melting, first aluminium ingot is put into smelting furnace, is heated to 750-800 DEG C and keeping temperature is constant, then add into smelting furnace Enter aluminium silicon intermediate alloy, when aluminium silicon intermediate alloy is completely melt and is stood when temperature recovery is to 750-800 DEG C, and melt backward Copper is added in furnace, after copper is completely melt again stand and temperature is risen to 800-850 DEG C, in most backward smelting furnace addition by Step A)Obtained nano titanium carbide and the mixed-powder of aluminium, stirs and cools, and adds refining agent scarfing cinder degasification and to liquation Sampling analysis and adjust chemical element quality % contents be:9.6-12.0% silicon, 1.5-3.5% copper and 1.0-3.0% receive Rice titanium carbide, surplus is aluminium, and then is stood, and skims, moulding by casting, obtains base to be post-processed;
C) post-process, will be by step B)Obtained base to be post-processed, which is put into heat-treatment furnace, to be heated and is incubated, and is gone out heat-treatment furnace and is entered Water-filling is quenched, and after water quenching, is heated and is incubated again again, obtains nano titanium carbide particle enhancing ADC12 aluminum matrix composites.
3. the preparation method of nano titanium carbide particle enhancing ADC12 aluminum matrix composites according to claim 2, its feature It is step A)Described in control ball mill ball milling speed and Ball-milling Time be to control ball milling speed and Ball-milling Time respectively It is made as 100-200r/min and 12-24h.
4. nano titanium carbide particle according to claim 1 strengthens ADC12 aluminum matrix composites, it is characterised in that step A) Described in nano silicon carbide titanium powder and both aluminium powders weight ratio be 2.5-3.5: 6-8.
5. the nano titanium carbide particle enhancing ADC12 aluminum matrix composites according to claim 1 or 4, it is characterised in that institute The particle size for stating nano silicon carbide titanium powder is 40-100 nanometers.
6. the preparation method of nano titanium carbide particle enhancing ADC12 aluminum matrix composites according to claim 2, its feature It is step B)Described in aluminium silicon intermediate alloy account for 20% Al-20Si alloys of gross weight for the weight of element silicon.
7. the preparation method of nano titanium carbide particle enhancing ADC12 aluminum matrix composites according to claim 2, its feature It is step B)Described in time for standing be 8-12min;The time stood again is 12-18min;Described and then standing Time be 5-10min.
8. the preparation method of nano titanium carbide particle enhancing ADC12 aluminum matrix composites according to claim 2, its feature It is step B)Described in time for stirring be 2-5min;The cooling is to cool the temperature to 740-750 DEG C.
9. the preparation method of nano titanium carbide particle enhancing ADC12 aluminum matrix composites according to claim 2, its feature It is step C)Described in the heating-up temperature that heats in heat-treatment furnace be 500-530 DEG C, the time of the insulation is 6-12h.
10. the preparation method of nano titanium carbide particle enhancing ADC12 aluminum matrix composites according to claim 2, it is special Sign is step C)Described in the temperature heated again be 150-170 DEG C, the time being incubated again is 4-10h.
CN201710880169.4A 2017-09-26 2017-09-26 Nano titanium carbide particle enhancing ADC12 aluminum matrix composites and preparation method thereof Pending CN107699746A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109930040A (en) * 2018-12-17 2019-06-25 张家港市固业金属制品有限公司 A kind of pack alloy carrying out surface anodization and its preparation process

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Application publication date: 20180216