CN103643060B - B 4c/Al matrix material and preparation method thereof - Google Patents
B 4c/Al matrix material and preparation method thereof Download PDFInfo
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- CN103643060B CN103643060B CN201310627244.8A CN201310627244A CN103643060B CN 103643060 B CN103643060 B CN 103643060B CN 201310627244 A CN201310627244 A CN 201310627244A CN 103643060 B CN103643060 B CN 103643060B
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- 239000011159 matrix material Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 238000003756 stirring Methods 0.000 claims abstract description 40
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 36
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 36
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 25
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 19
- 238000007670 refining Methods 0.000 claims abstract description 18
- 229910052786 argon Inorganic materials 0.000 claims abstract description 13
- 238000007664 blowing Methods 0.000 claims abstract description 13
- 238000005266 casting Methods 0.000 claims abstract description 10
- 238000010907 mechanical stirring Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000002203 pretreatment Methods 0.000 claims abstract description 6
- 238000010792 warming Methods 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- 239000004411 aluminium Substances 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 26
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 239000005030 aluminium foil Substances 0.000 description 9
- 239000002131 composite material Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- NCLXGWPWFDWEMF-UHFFFAOYSA-N [Ti].[Cr].[Zn].[Mg].[Mn].[Si].[Fe].[Cu] Chemical compound [Ti].[Cr].[Zn].[Mg].[Mn].[Si].[Fe].[Cu] NCLXGWPWFDWEMF-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 229910001148 Al-Li alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000000713 high-energy ball milling Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000009997 thermal pre-treatment Methods 0.000 description 1
Abstract
The invention discloses a kind of B
4the preparation method of C/Al matrix material, it comprises the following steps: the boron carbide powder of diameter 10-100 micron grinds, screens by (1) after the pre-treatment; (2) prepare aluminium alloy melt, blowing argon gas refining removes the gred; (3) boron carbide powder obtained in step (1) is dropped in aluminium alloy melt, aluminium alloy melt be cooled to its semi-solid temperature interval and apply mechanical stirring and induction stirring; And (4) by stir after aluminium alloy melt be warming up to full liquid state after, above melt, apply pressure by melt press-in die.According to B of the present invention
4the B of preparation method's acquisition of C/Al matrix material
4in C/Al matrix material, B
4c even particle distribution, disperse, dense structure, does not have the casting flaws such as obvious pore.
Description
Technical field
The invention belongs to field of compound material, more particularly, the present invention relates to a kind of B
4c/Al matrix material and preparation method thereof.
Background technology
B
4c/Al has low density, high strength, high elastic coefficient, high thermal conductance and high neutron absorption ability, therefore, is widely used in national defence, aerospace and Nuclear Power Industry field.High-content B
4the B of C
4c/Al matrix material has important use in Nuclear Power Industry, is a kind of desirable spent fuel storage rack material.
US Patent No. 5,700,962 and Chinese patent patent of invention ZL201010607497.5 disclose a kind of B respectively
4the preparation method of C/Al matrix material, it comprises: aluminium powder and boron carbide powder high-energy ball milling mixed and be pressed into blank in advance, sinter blank into sintered blank, and sintered blank is carried out extruding and hot rolling to prepare the boron carbide particles reinforced aluminum matrix composites of high-content, even particle distribution.But there is complex procedures and the high shortcoming of cost in above-mentioned preparation method, is unfavorable for commercial scale production.Even if by accumulation ply rolling method, obtain the B that norbide volume fraction is about 12%
4c/Al matrix material, but, due to work hardening, be difficult to the B obtaining high level
4c/Al matrix material.
Stirring casting method is the B of a kind of low cost, high yield
4c/Al composite material and preparation method thereof; it carries out usually in 600-850 DEG C of temperature range, and the wetting angle under this temperature range between boron carbide particles and molten aluminium is greater than 90 degree, and boron carbide particles is difficult to enter melt; therefore, must process to improve to boron carbide particles or melt wetting.US Patent No. 5,858,460 employings improve soaking between itself and Al-Li alloy matrix in the method for boron carbide particles surface-coated one deck silvering, obtain the B that norbide volume content is 10%, 20%
4c/Al matrix material, but silver-plated cost is high and can produce nitrogen oxides pollution.
In addition, at stirring casting B
4in the process of C/Al matrix material, when in melt, boron carbide particles content is higher, the viscosity of melt is comparatively large also may cause fluidity of molten poor, can bring impact, melt can be caused to fill the series of problems such as type is imperfect, feeding capacity is poor on the castability of melt.
In view of this, necessaryly a kind of B is provided
4c/Al matrix material and preparation method thereof, to be difficult between boron carbide particles and aluminum substrate to soak to overcome, the problem of boron carbide particles skewness, melt casting poor-performing.
Summary of the invention
The object of the invention is to: a kind of B is provided
4c/Al matrix material and preparation method thereof, to be difficult between boron carbide particles and aluminum substrate to soak to solve, the problem of boron carbide particles skewness, melt casting poor-performing.
In order to realize foregoing invention object, the invention provides a kind of B
4the preparation method of C/Al matrix material, it comprises the following steps:
(1) boron carbide powder of diameter 10-100 micron is ground after the pre-treatment, screens;
(2) prepare aluminium alloy melt, blowing argon gas refining removes the gred;
(3) boron carbide powder obtained in step (1) is dropped in aluminium alloy melt, aluminium alloy melt be cooled to its semi-solid temperature interval and stir; And
(4), after the aluminium alloy melt after stirring being warming up to full liquid state, above melt, pressure is applied by melt press-in die.
As B of the present invention
4the one of the preparation method of C/Al matrix material is improved, and in step (1), the pre-treatment of boron carbide powder is: in air atmosphere, with 390-410 DEG C of heating 1.9-2.1h.
As B of the present invention
4the one of the preparation method of C/Al matrix material is improved, in step (2), in mass percentage, the composition of the aluminium alloy melt prepared is silicon 0.2-1%, iron 0.2-1%, copper 3.8-4.9%, manganese 0.3-1%, magnesium 1.2-1.8%, chromium < 0.1%, zinc 0.1-0.25%, titanium 1-5%, aluminium surplus.The proportioning of this kind of aluminium alloy melt is not only conducive to the following process deformability improving matrix material, and the titanium wherein contained can help B
4open each other between C particle, and be combined closely with alloy matrix aluminum.
As B of the present invention
4the one of the preparation method of C/Al matrix material is improved, and in step (2), blowing argon gas refining argon flow amount used is about 9-11cc/min, and refining time is about 3-5min, and blowing refining temperature is 700 DEG C ± 10 DEG C.
As B of the present invention
4the one of the preparation method of C/Al matrix material is improved, and in step (3), the temperature stirred aluminium alloy melt is 625 DEG C ± 5 DEG C, and vacuum tightness is 100-2000Pa.
As B of the present invention
4the one of the preparation method of C/Al matrix material is improved, and in step (4), the temperature of aluminium alloy melt casting is 740 DEG C ± 10 DEG C.
As B of the present invention
4the one of the preparation method of C/Al matrix material is improved, and in step (3), stirs as mechanical stirring or machinery-double electromagnetic stir.
As B of the present invention
4the one of the preparation method of C/Al matrix material is improved, and in step (3), stir as mechanical stirring, agitating vane is positioned at bottom melt, and agitating vane rotating speed is 500 ± 20r/min.
As B of the present invention
4the one of the preparation method of C/Al matrix material is improved, in step (3), stir as machinery-double electromagnetic stirs, churned mechanically agitating vane is positioned at bottom melt, agitating vane rotating speed is 500 ± 20r/min, the sine-wave current frequency of induction stirring is 20Hz, strength of current peak value 10A, altogether stir about 30min.
As B of the present invention
4the one of the preparation method of C/Al matrix material is improved, B
4b in C/Al matrix material
4the volumn concentration of C is 10%-30%.
In order to realize foregoing invention object, present invention also offers a kind of B
4c/Al matrix material, it is obtained by aforementioned preparation process.
Relative to prior art, B of the present invention
4c/Al matrix material and preparation method thereof has the following advantages:
1) adopt and will grind again after boron carbide powder preheating, sieve, thermal pretreatment effectively can improve soaking between boron carbide particles and aluminum substrate, grinding and technique of sieving can remove the reunion generated in warm, the add-on increasing norbide, the effect avoiding norbide to reunite;
2) on churned mechanically basis, induction stirring is introduced, travelling-magnetic-field or electromagnetic oscillation is applied to melt, melt each several part stirring extent can be made even, effectively eliminate the boron carbide particles local occurred because melt each several part stirs inequality in single mechanical agitation process and reunite.
3) adopt the forging type inhaling casting, effectively overcome to stir and terminate the problem that rear melt viscosity is higher, poor fluidity, castability are poor, improve B
4the performance of C/Al matrix material.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, to B of the present invention
4c/Al matrix material and preparation method thereof is described in detail, in accompanying drawing:
Fig. 1 is B prepared by the embodiment of the present invention 1
4the metallograph of C/Al composite sample, wherein, B
4the volume fraction of C is 10%, and the alr mode of employing is mechanical stirring.
Fig. 2 is B prepared by the embodiment of the present invention 2
4the metallograph of C/Al composite sample, wherein, B
4the volume fraction of C is 20%, and the alr mode of employing is mechanical stirring.
Fig. 3 is B prepared by the embodiment of the present invention 3
4the metallograph of C/Al composite sample, wherein, B
4the volume fraction of C is 30%, and the alr mode of employing is that mechanical stirring adds induction stirring.
Embodiment
In order to make goal of the invention of the present invention, technical scheme and technique effect more clear, below in conjunction with drawings and Examples, the present invention is described in more detail.Should be understood that, the embodiment described in this specification sheets is only to explain the present invention, is not intended to limit the present invention.
Embodiment 1
Step 1. pre-treatment, takes a certain amount of 325 order core level B
4the former powder of C, is placed in resistance furnace by its drawout on container, with 390 DEG C of heating 2.1h in air atmosphere.
Step 2. is sieved after being ground by the boron carbide powder of step 1 gained, removes the particle of wherein particle diameter more than 100 microns, takes the boron carbide powder 1.5Kg of diameter 10-100 micron and uses aluminium foil coated.
Step 3. is got a certain amount of fine aluminium and is heated in stove, melts, and when temperature reaches 690 DEG C, is encased by a certain amount of pure magnesium aluminium-foil paper in press-in melt; Continue to heat up, when temperature is increased to 700 DEG C, add load weighted AlCu50, Zn, Al-Fe10, Al-Cr5, Al-Mn10, Al-Ti10 master alloy stirring in advance, the melt of composition shown in preparation following table, due to containing appropriate alloying element, matrix is not only conducive to preparing matrix material but also matrix material possesses certain subsequent thermal processing performance; Until completely melted, blowing argon gas refining 3min is carried out to melt and skims, argon flow amount used is 10cc/min, refining time is 3min, blowing refining temperature is 700 DEG C ± 10 DEG C, by dropping in melt through pretreated boron carbide powder of wrapping with aluminium foil in advance in step 2, close bell, and body of heater is evacuated to 500Pa.
| Silicon | Iron | Copper | Manganese | Magnesium | Chromium | Zinc | Titanium | Aluminium |
| 0.5% | 0.5% | 4.2% | 0.8% | 1.5% | 0.1% | 0.25% | 1% | Surplus |
Step 4. is incubated after melt is cooled to 625 DEG C, slowly falls near bottom agitating vane to melt, increases rotating speed gradually, finally by stabilization of speed at 500r/min, eddy current can either be formed and particle is involved in melt does not produce splashing again; Along with stirring is carried out, boron carbide particles is involved in melt gradually, altogether stir about 30min.
Agitating vane rotating speed is down to 100r/min by step 5., and slowly rises from liquid level; Melt is warming up to 740 DEG C to skim, pressurizes above melt after a little for bath surface scum silica frost is taken out, melt is inhaled in mould.
The sample of gained carries out cutting by step 6., polish, carry out metallurgical analysis after polishing, and metallograph as shown in Figure 1.
Embodiment 2
Step 1. takes a certain amount of 325 order core level B
4c powder, is placed in resistance furnace by its drawout on container, with 400 DEG C of heating 2h in air atmosphere.
Step 2. is sieved after being ground by the boron carbide powder of step 1 gained, takes the boron carbide powder 3.3Kg of diameter 10-100 micron and uses aluminium foil coated.
Step 3. is got a certain amount of fine aluminium and is heated in stove, melts, and when temperature reaches 690 DEG C, is encased by a certain amount of pure magnesium aluminium-foil paper in press-in melt; Continue to heat up, when temperature is increased to 700 DEG C, add load weighted AlCu50, Zn, AlFe10, AlMn10, AlCr5, AlTi10 master alloy stirring in advance, the melt of composition shown in configuration following table.Until completely melted, blowing argon gas refining 3min is carried out to melt and skims, argon flow amount used is 10cc/min, refining time is 3min, blowing refining temperature is 700 DEG C ± 10 DEG C, by dropping in melt through pretreated boron carbide powder of wrapping with aluminium foil in advance in step 2, close bell, and body of heater is evacuated to 500Pa.
| Silicon | Iron | Copper | Manganese | Magnesium | Chromium | Zinc | Titanium | Aluminium |
| 0.5% | 0.5% | 4.2% | 0.8% | 1.5% | 0.1% | 0.25% | 5% | Surplus |
Step 4. is incubated after melt is cooled to 625 DEG C, slowly falls near bottom agitating vane to melt, increases rotating speed gradually, finally by stabilization of speed at 500r/min, eddy current can either be formed and particle is involved in melt does not produce splashing again; Along with stirring is carried out, boron carbide particles is involved in melt gradually, altogether stir about 30min.
Agitating vane rotating speed is down to 100r/min by step 5., and slowly rises from liquid level; Melt is warming up to 740 DEG C to skim, pressurizes above melt after a little for bath surface scum silica frost is taken out, melt is inhaled in mould.
The sample of gained carries out cutting by step 6., polish, carry out metallurgical analysis after polishing, and metallograph as shown in Figure 2.
Embodiment 3
Step 1. takes a certain amount of 325 order core level B
4c powder, is placed in resistance furnace by its drawout on container, with 410 DEG C of heating 1.9h in air atmosphere.
Step 2. is sieved after being ground by the boron carbide powder of step 1 gained, takes the boron carbide powder 5.75Kg of diameter 10-100 micron and uses aluminium foil coated.
Step 3. is got a certain amount of fine aluminium and is heated in stove, melts, and when temperature reaches 690 DEG C, is encased by a certain amount of pure magnesium aluminium-foil paper in press-in melt; Continue to heat up, when temperature is increased to 700 DEG C, add load weighted AlCu50, Zn, AlFe10, AlMn10, AlCr5, AlTi10 master alloy stirring in advance, the melt of composition shown in configuration following table.Until completely melted, blowing argon gas refining 3min is carried out to melt and skims, argon flow amount used is 10cc/min, refining time is 3min, blowing refining temperature is 700 DEG C ± 10 DEG C, by dropping in melt through pretreated boron carbide powder of wrapping with aluminium foil in advance in step 2, close bell, and body of heater is evacuated to 500Pa.
| Silicon | Iron | Copper | Manganese | Magnesium | Chromium | Zinc | Titanium | Aluminium |
| 0.5% | 0.5% | 4.2% | 0.8% | 1.5% | 0.1% | 0.25% | 1% | Surplus |
Step 4. is incubated after melt is cooled to 625 DEG C, slowly falls near bottom agitating vane to melt, increases rotating speed gradually, finally by stabilization of speed at 500r/min, eddy current can either be formed and particle is involved in melt does not produce splashing again; Open induction stirring, regulate sine-wave current frequency to 20Hz, strength of current peak value 10A.Along with stirring is carried out, boron carbide particles is involved in melt gradually, altogether stir about 30min.
After step 5. composite stirring 30min, agitating vane speed is down to 100r/min, and slowly rises from liquid level, stop induction stirring.Melt is warming up to 740 DEG C to skim, pressurizes above melt after a little for bath surface scum silica frost is taken out, melt is inhaled in mould.
The sample of gained carries out cutting by step 6., polish, carry out metallurgical analysis after polishing, and metallograph as shown in Figure 3.
B of the present invention
4the preparation method of C/Al matrix material can prepare B efficiently
4c volume content up to 30% B
4c/Al matrix material, in the metallograph shown in as can be seen from Fig. 1 to Fig. 3: according to B of the present invention
4b of the present invention prepared by the preparation method of C/Al matrix material
4in C/Al matrix material, B
4c even particle distribution, disperse, dense structure, does not produce the casting flaws such as obvious pore.
In addition, when boron carbide powder volume content is 10%, 20%, adopting mechanical stirring to be enough to obtain Granular composite in macro-scale very well, does not almost have the B of casting flaw
4c/Al matrix material, but B on micro-scale
4c particle is slightly reunited; When boron carbide powder volume content is 30%, owing to adding induction stirring technique, effectively break up B at micro-scale
4the reunion of C particle, obtains evenly, the high B of disperse
4the matrix material of C volume content.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification sheets, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (10)
1. a B
4the preparation method of C/Al matrix material, is characterized in that, comprises the following steps:
(1) boron carbide powder of diameter 10-100 micron is ground after the pre-treatment, screens;
(2) prepare aluminium alloy melt, blowing argon gas refining removes the gred;
(3) boron carbide powder obtained in step (1) is dropped in aluminium alloy melt, aluminium alloy melt be cooled to its semi-solid temperature interval and stir; And
(4), after the aluminium alloy melt after stirring being warming up to full liquid state, above melt, pressure is applied by melt press-in die, wherein, B
4b in C/Al matrix material
4the volumn concentration of C is 10%-30%.
2. B according to claim 1
4the preparation method of C/Al matrix material, is characterized in that, in step (1), the pre-treatment of boron carbide powder is: in air atmosphere, with 390-410 DEG C of heating 1.9-2.1h.
3. B according to claim 1
4the preparation method of C/Al matrix material, it is characterized in that, in step (2), in mass percentage, the composition of the aluminium alloy melt prepared is silicon 0.2-1%, iron 0.2-1%, copper 3.8-4.9%, manganese 0.3-1%, magnesium 1.2-1.8%, chromium < 0.1%, zinc 0.1-0.25%, titanium 1-5%, aluminium surplus.
4. B according to claim 1
4the preparation method of C/Al matrix material, is characterized in that, in step (2), blowing argon gas refining argon flow amount used is 9-11cc/min, and refining time is 3-5min, and blowing refining temperature is 700 DEG C ± 10 DEG C.
5. B according to claim 1
4the preparation method of C/Al matrix material, is characterized in that, in step (3), the temperature stirred aluminium alloy melt is 625 DEG C ± 5 DEG C, and vacuum tightness is 100-2000Pa.
6. B according to claim 1
4the preparation method of C/Al matrix material, is characterized in that, in step (4), the temperature of aluminium alloy melt casting is 740 DEG C ± 10 DEG C.
7. B according to claim 1
4the preparation method of C/Al matrix material, is characterized in that, in step (3), stirs as mechanical stirring or machinery-double electromagnetic stir.
8. B according to claim 7
4the preparation method of C/Al matrix material, is characterized in that, in step (3), stir as mechanical stirring, agitating vane is positioned at bottom melt, and agitating vane rotating speed is 500 ± 20r/min.
9. B according to claim 1
4the preparation method of C/Al matrix material, it is characterized in that, in step (3), stir as machinery-double electromagnetic stirs, churned mechanically agitating vane is positioned at bottom melt, agitating vane rotating speed is 500 ± 20r/min, and the sine-wave current frequency of induction stirring is 20Hz, strength of current peak value 10A, stirs 30min altogether.
10. a B
4c/Al matrix material, is characterized in that, described B
4c/Al matrix material is obtained by the preparation method according to any one of claim 1 to 9.
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| CN104946911B (en) * | 2015-06-29 | 2017-03-08 | 哈尔滨工业大学 | A kind of spent fuel storage rack high-volume fractional B4The preparation method of C/Al composite |
| CN105761773B (en) * | 2016-03-07 | 2017-09-29 | 镇江纽科利核能新材料科技有限公司 | The preparation method of spentnuclear fuel storing neutron absorber material |
| CN109762990B (en) * | 2018-12-28 | 2020-01-07 | 清华大学深圳研究生院 | Recovery and regeneration method of boron carbide aluminum-based composite material |
| CN109825737A (en) * | 2019-02-14 | 2019-05-31 | 四川聚能核技术工程有限公司 | A kind of fusion casting preparation method of aluminum-based boron carbide composite material |
| CN111020300B (en) * | 2019-12-05 | 2021-09-10 | 江苏大学 | Preparation method of thermal cracking resistant binary nanoparticle reinforced aluminum matrix composite |
| CN111515360A (en) * | 2020-04-23 | 2020-08-11 | 昆明理工大学 | Preparation method of cylindrical multilayer composite casting |
| CN112680622A (en) * | 2020-12-18 | 2021-04-20 | 深圳优越科技新材料有限公司 | Light high-strength boron carbide particle reinforced aluminum matrix composite material and preparation method thereof |
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| JP4319939B2 (en) * | 2004-04-16 | 2009-08-26 | 電気化学工業株式会社 | Method for producing aluminum alloy-ceramic composite |
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