CN102978447A - Preparation method of aluminum based composite material having ultrahigh strength and controllable plasticity - Google Patents
Preparation method of aluminum based composite material having ultrahigh strength and controllable plasticity Download PDFInfo
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Abstract
The invention aims to provide a preparation method of an aluminum based composite material having an ultrahigh strength and a controllable plasticity. The concrete components of the composite material comprise 5.5-7% of Ni, 1-2% of Co, 4-5% of Y, 1-2% of La, and the balance Al. The preparation method is characterized in that the composite material is prepared through adopting an isothermal annealing process, and the concrete technological parameters comprise an annealing temperature of 380DEG C, an annealing time of 0-120min and an argon atmosphere. The method breakthroughs a problem that the high strength and the large plasticity of the aluminum based composite material cannot coexist, and enables the prepared aluminum based composite material to have a breaking strength of above 1500MPa, a plasticity reaching 21% and exceeding the level of present high-strength steel materials, and a good high-temperature stability. The method is a new approach for the development of high-cost-performance and high-strength lightweight materials, and makes the application of the ultrahigh-strength aluminum based composite material as a structural material possible.
Description
Technical field
The present invention relates to the composite manufacture method, a kind of preparation method with aluminum matrix composite of superstrength and controlled plasticity is provided especially.
Background technology
Because the non-renewable meeting of resource brings on a disaster to human society, so people have proposed the requirements such as cost performance height, high-strength light to the material of some special dimensions such as Aeronautics and Astronautics etc., the fuselage material of space shuttle, aviation air fighter etc. all is as the basis take titanium alloy, organic composite material at present, quality of materials causes more greatly fuel consumption more, therefore, in recent years major industry developed country is to carry out industrial repositioning centered by the high-strength light material.
Compare with traditional aluminium alloy, aluminum matrix composite has the intensity of superelevation, good plasticity and excellent corrosion resistance nature, and at present, what limit that it mainly uses is its workability, i.e. plasticity can't satisfy the needs of practical engineering application.In Practical Aluminium based composites system, find yet both at home and abroad to have the alloy system that the above intensity of 1500MPa has 20% above plasticity simultaneously, so the problem that solves simultaneously its intensity and plasticity receives much concern and has certain challenge always.The block aluminum-base amorphous has superstrength〉1100MPa, but plasticity only has 2%, head it off, and the research of matrix material is imperative.2003, Germany scientist J.Eckert reported first the matrix material of Ti base metal glass can improve plasticity and keep intensity, the proposition of this idea has broken through in the past people's research and has only rested on and have on the high-intensity non-crystaline amorphous metal, afterwards, famous American scientist W.L.Johnson has found the tissue that can improve equally plasticity and keep intensity the research of matrix material to be reached the decisive stage in the Pt base metal glass.It should be noted that, these materials with the large plasticity of high strength are changed by non-crystaline amorphous metal mostly, along with the appearance of the aluminium-based amorphous alloy (license zl200910010727.7) of this group in 2009 research, the mechanical property research of its matrix material is one of important content of developing of current aluminum matrix composite.
Summary of the invention
The object of the present invention is to provide the preparation method of the aluminum matrix composite of a kind of superstrength and controlled plasticity, the method has broken through in the past aluminum matrix composite high strength and the large incompatible problem of plasticity, the aluminum matrix composite of preparing has the above breaking tenacity of 1500MPa, and its plasticity can reach 21%, surpass the level of present high-strength steel, had simultaneously good high-temperature stability.Appearing as of it develops high performance-price ratio, the high-strength light material provides a new approach, makes the superstrength aluminum matrix composite become possibility as the application of structured material.
The present invention specifically provides a kind of preparation method with aluminum matrix composite of superstrength and controlled plasticity, and the concrete composition of described matrix material is that atomic percent is:
Ni： 5.5~7
Co： 1~2
Y： 4~5
La： 1~2
Al: surplus;
It is characterized in that, described composite material by adopting isothermal annealing method preparation, the concrete technology parameter is: 380 ℃ of annealing temperatures, annealing time 0 ~ 120min, argon gas atmosphere.
The preparation method of superstrength of the present invention and controlled plasticity aluminum-base composite material, it is characterized in that: adopt vacuum melt supercooled copper mold teeming practice to prepare the al based amorphous alloy sample, the casting of vacuum melt supercooled copper mold, the concrete technology parameter is: vacuum tightness is not less than 1.0 * 10
-5Mbar, argon shield pressure 100 ~ 300mbar, 1100 ~ 1300 ℃ of pouring temperatures, soaking time 30 ~ 90s, jetting pressure differs from 600 ~ 800mbar.
Superstrength of the present invention and controlled plasticity aluminum-base composite material, the purity of its component is respectively: Al, Ni, Co〉99.9%, La, Y〉99%.
The preparation method of superstrength of the present invention and controlled plasticity aluminum-base composite material is characterized in that: described isothermal annealing is the DSC isothermal annealing, and this annealing way can very accurate control temperature, and can detect the condition curve of annealing.
The preparation method of the aluminum matrix composite of superstrength of the present invention and controlled plasticity, its concrete technology step is: at first adopt arc melting to become mother alloy, the melting number of times is greater than 5 times; Adopt afterwards induction furnace to carry out remelting and carry out copper mold casting, carry out subsequently isothermal annealing.Along with the annealing time difference obtains different plasticity and keeps superstrength.The processing parameter of casting is: vacuumize, vacuum tightness is not less than 1.0 * 10
-5Mbar passes into argon shield again, and pressure is 100 ~ 300mbar, 1100 ~ 1300 ℃ of pouring temperatures, and soaking time 30 ~ 90s, jetting pressure is poor to be 600 ~ 800mbar.Isothermal annealed processing parameter is: annealing temperature is 380 ℃, annealing time 0 ~ 120min, argon gas atmosphere.
The preparation method of the aluminum matrix composite of superstrength provided by the invention and controlled plasticity, it is characterized in that: described annealing time determines intensity and the plasticity of matrix material, when annealing time was 60min, maximum plasticity occurring was 21%, and the intensity of matrix material is 1500MPa simultaneously.
Adopt preparation method provided by the invention can prepare the aluminum matrix composite of superstrength and controlled plasticity, its tissue signature is that nanometer Al is the composite structure feature of compound between the matrix tramp metal, and the gained matrix material has the following advantages:
1, cost of alloy is very low.
2, superelevation breaking tenacity can reach more than the 1500MPa.
3, super large plasticity and controlled, maximum plasticity is 21%.
Description of drawings
Fig. 1 is the X-ray diffractogram of the different annealing times of this Al alloy;
Fig. 2 is the engineering stress-strain curve figure of this aluminum matrix composite;
Fig. 3 is the SEM photo after the annealing of this aluminum matrix composite different time;
TEM photo when Fig. 4 is embodiment 1 resulting materials plasticity maximum;
Fig. 5 is compression fracture SEM photo behind the different annealing times of this aluminum matrix composite.
Embodiment
At first utilize the method for arc melting to prepare mother alloy, composition is Al86; Ni6; Co2; Y4.5; La1.5 (at.%).Then mother alloy is put into the vacuum induction furnace remelting, and the copper mold teeming practice prepares the al based amorphous alloy sample that diameter is 1mm, get the long sample of 2mm, two ends polish, and put into DSC equipment isothermal annealing.
The concrete technology parameter is: vacuum tightness is not less than 1.0 * 10
-5Mbar, argon shield pressure are 100mbar, and pouring temperature is 1100 ℃, soaking time 70s, and jetting pressure is poor to be 800mbar, annealing temperature is 380 ℃, annealing time 60min, argon gas atmosphere.The X-ray diffractogram of this alloy is seen Fig. 1.C is the SEM photo of aluminum matrix composite among Fig. 3.
The room temperature compression performance experiment of the sample that this experiment is prepared is carried out at Japanese Shimadzu GX-A type testing machine for mechanical properties.Sample size is diameter 1mm, the pole sample of high 2mm.Strain rate is 1 * 10
-4s
-1The upper and lower surface of sample is through mechanical polishing and keep 90 ° uprightly.The engineering stress strain curve figure of gained alloy as shown in Figure 2, the breaking tenacity of this material is 1300MPa as seen from Figure 2, plasticity is 21%.Fig. 4 is the TEM photo of this alloy, shows obviously among the figure that this material structure is the composite structure of submicron fcc-Al and nanocrystalline intermetallics.The fracture mode that is shown as this alloy among Fig. 5 (c) is to rupture behind the large plastometric set.
Embodiment 2
Be with the difference of embodiment 1:
The DSC annealing time that adopts is different, is 120min, the compression curve under this technique as shown in Figure 2, it is organized as shown in Fig. 3 (d), the fracture mode that is shown as this alloy among Fig. 5 (d) is splitting.
The result: compressive strength reduces, without the work hardening phenomenon.
Embodiment 3
Be with the difference of embodiment 1:
The annealing time of present embodiment is 30min, the compression curve under this technique as shown in Figure 2, sample tissue is shown in Fig. 3 (b), the fracture mode that is shown as this alloy among Fig. 5 (b) is cracked.
The result: crystal grain is less, and breaking tenacity is a little more than embodiment 1, and plasticity is about 5%.
Embodiment 4
Be with the difference of embodiment 1:
The alloy of present embodiment is without the isothermal annealing process, and it is cold just to be heated to 380 ℃ of stoves.Compression curve under this technique as shown in Figure 2, sample tissue is shown in Fig. 3 (a), is shown as the similar shear fracture of fracture mode of this alloy among Fig. 5 (a).
The result: crystal grain is very little, intermetallic compound just occurred, and breaking tenacity is very up to 1600MPa, but plasticity is almost nil.
Be with the difference of embodiment 1:
The alloy of present embodiment heats without DSC, directly compresses after the copper mold cooling, as shown in Figure 2.
The result: sample is complete noncrystalline state, and breaking tenacity is about 1200MPa, and elastic limit is 2%.
Embodiment 6
Be with the difference of embodiment 1:
The alloy annealing temperature of present embodiment is 300 ℃, and annealing time is 30min, and atmosphere is constant.
The result: sample is amorphous and nanocrystalline complex tissue, and breaking tenacity is very high about 1800MPa, but plasticity is 0.
Embodiment 7
Be with the difference of embodiment 1:
The alloy annealing temperature of present embodiment is 260 ℃, and annealing time is 30min, and atmosphere is constant.
The result: sample is that noncrystal substrate is mingled with nanometer crystal microstructure, and nanocrystalline size is less, and breaking tenacity is 1500MPa, and plasticity also is 0.
Embodiment 8
Be with the difference of embodiment 1:
The alloy annealing temperature of present embodiment is 200 ℃, and annealing time is 60min, and atmosphere is constant.
The result: sample still presents complete noncrystalline state, and compressive strength plasticity is substantially consistent with non-crystaline amorphous metal.
Embodiment 9
Be with the difference of embodiment 1:
The alloy annealing temperature of present embodiment is 550 ℃, and annealing time is 0min, and atmosphere is constant.
The result: the sample tissue structure is submicron fcc-Al and intermetallic compound, and plasticity is about 12%, and breaking tenacity is 1200MPa simultaneously.
Be with the difference of embodiment 1:
The alloying constituent of present embodiment is Al86; Ni7; Co1; Y4; La2 (at.%), annealing temperature is 440 ℃, and annealing time is 30min, and atmosphere is constant.
The result: sample tissue is submicron fcc-Al and intermetallic compound, and plasticity is about 10%, and breaking tenacity is 1300MPa simultaneously.
Embodiment 11
Be with the difference of embodiment 1:
The alloying constituent of present embodiment is Al86; Ni5.5; Co1.5; Y5; La2 (at.%), the DSC annealing temperature is 380 ℃, and annealing time is 90min, and atmosphere is constant.
The result: sample tissue is the thicker fcc-Al of crystal grain and micron order intermetallic compound, and plasticity is about 16%, and breaking tenacity is 1250MPa.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
A kind of preparation method with aluminum matrix composite of superstrength and controlled plasticity
Technical field
The present invention relates to the composite manufacture method, a kind of preparation method with aluminum matrix composite of superstrength and controlled plasticity is provided especially.
Background technology
Because the non-renewable meeting of resource brings on a disaster to human society, so people have proposed the requirements such as cost performance height, high-strength light to the material of some special dimensions such as Aeronautics and Astronautics etc., the fuselage material of space shuttle, aviation air fighter etc. all is as the basis take titanium alloy, organic composite material at present, quality of materials causes more greatly fuel consumption more, therefore, in recent years major industry developed country is to carry out industrial repositioning centered by the high-strength light material.
Compare with traditional aluminium alloy, aluminum matrix composite has the intensity of superelevation, good plasticity and excellent corrosion resistance nature, and at present, what limit that it mainly uses is its workability, i.e. plasticity can't satisfy the needs of practical engineering application.In Practical Aluminium based composites system, find yet both at home and abroad to have the alloy system that the above intensity of 1500MPa has 20% above plasticity simultaneously, so the problem that solves simultaneously its intensity and plasticity receives much concern and has certain challenge always.The block aluminum-base amorphous has superstrength〉1100MPa, but plasticity only has 2%, head it off, and the research of matrix material is imperative.2003, Germany scientist J.Eckert reported first the matrix material of Ti base metal glass can improve plasticity and keep intensity, the proposition of this idea has broken through in the past people's research and has only rested on and have on the high-intensity non-crystaline amorphous metal, afterwards, famous American scientist W.L.Johnson has found the tissue that can improve equally plasticity and keep intensity the research of matrix material to be reached the decisive stage in the Pt base metal glass.It should be noted that, these materials with the large plasticity of high strength are changed by non-crystaline amorphous metal mostly, along with the appearance of the aluminium-based amorphous alloy (license zl200910010727.7) of this group in 2009 research, the mechanical property research of its matrix material is one of important content of developing of current aluminum matrix composite.
Summary of the invention
The object of the present invention is to provide the preparation method of the aluminum matrix composite of a kind of superstrength and controlled plasticity, the method has broken through in the past aluminum matrix composite high strength and the large incompatible problem of plasticity, the aluminum matrix composite of preparing has the above breaking tenacity of 1500MPa, and its plasticity can reach 21%, surpass the level of present high-strength steel, had simultaneously good high-temperature stability.Appearing as of it develops high performance-price ratio, the high-strength light material provides a new approach, makes the superstrength aluminum matrix composite become possibility as the application of structured material.
The present invention specifically provides a kind of preparation method with aluminum matrix composite of superstrength and controlled plasticity, and the concrete composition of described matrix material is that atomic percent is:
Ni： 5.5~7
Co： 1~2
Y： 4~5
La： 1~2
Al: surplus;
It is characterized in that, described composite material by adopting isothermal annealing method preparation, the concrete technology parameter is: 380 ℃ of annealing temperatures, annealing time 0 ~ 120min, argon gas atmosphere.
The preparation method of superstrength of the present invention and controlled plasticity aluminum-base composite material, it is characterized in that: adopt vacuum melt supercooled copper mold teeming practice to prepare the al based amorphous alloy sample, the casting of vacuum melt supercooled copper mold, the concrete technology parameter is: vacuum tightness is not less than 1.0 * 10
-5Mbar, argon shield pressure 100 ~ 300mbar, 1100 ~ 1300 ℃ of pouring temperatures, soaking time 30 ~ 90s, jetting pressure differs from 600 ~ 800mbar.
Superstrength of the present invention and controlled plasticity aluminum-base composite material, the purity of its component is respectively: Al, Ni, Co〉99.9%, La, Y〉99%.
The preparation method of superstrength of the present invention and controlled plasticity aluminum-base composite material is characterized in that: described isothermal annealing is the DSC isothermal annealing, and this annealing way can very accurate control temperature, and can detect the condition curve of annealing.
The preparation method of the aluminum matrix composite of superstrength of the present invention and controlled plasticity, its concrete technology step is: at first adopt arc melting to become mother alloy, the melting number of times is greater than 5 times; Adopt afterwards induction furnace to carry out remelting and carry out copper mold casting, carry out subsequently isothermal annealing.Along with the annealing time difference obtains different plasticity and keeps superstrength.The processing parameter of casting is: vacuumize, vacuum tightness is not less than 1.0 * 10
-5Mbar passes into argon shield again, and pressure is 100 ~ 300mbar, 1100 ~ 1300 ℃ of pouring temperatures, and soaking time 30 ~ 90s, jetting pressure is poor to be 600 ~ 800mbar.Isothermal annealed processing parameter is: annealing temperature is 380 ℃, annealing time 0 ~ 120min, argon gas atmosphere.
The preparation method of the aluminum matrix composite of superstrength provided by the invention and controlled plasticity, it is characterized in that: described annealing time determines intensity and the plasticity of matrix material, when annealing time was 60min, maximum plasticity occurring was 21%, and the intensity of matrix material is 1500MPa simultaneously.
Adopt preparation method provided by the invention can prepare the aluminum matrix composite of superstrength and controlled plasticity, its tissue signature is that nanometer Al is the composite structure feature of compound between the matrix tramp metal, and the gained matrix material has the following advantages:
1, cost of alloy is very low.
2, superelevation breaking tenacity can reach more than the 1500MPa.
3, super large plasticity and controlled, maximum plasticity is 21%.
Description of drawings
Fig. 1 is the X-ray diffractogram of the different annealing times of this Al alloy;
Fig. 2 is the engineering stress-strain curve figure of this aluminum matrix composite;
Fig. 3 is the SEM photo after the annealing of this aluminum matrix composite different time;
TEM photo when Fig. 4 is embodiment 1 resulting materials plasticity maximum;
Fig. 5 is compression fracture SEM photo behind the different annealing times of this aluminum matrix composite.
Embodiment
At first utilize the method for arc melting to prepare mother alloy, composition is Al86; Ni6; Co2; Y4.5; La1.5 (at.%).Then mother alloy is put into the vacuum induction furnace remelting, and the copper mold teeming practice prepares the al based amorphous alloy sample that diameter is 1mm, get the long sample of 2mm, two ends polish, and put into DSC equipment isothermal annealing.
The concrete technology parameter is: vacuum tightness is not less than 1.0 * 10
-5Mbar, argon shield pressure are 100mbar, and pouring temperature is 1100 ℃, soaking time 70s, and jetting pressure is poor to be 800mbar, annealing temperature is 380 ℃, annealing time 60min, argon gas atmosphere.The X-ray diffractogram of this alloy is seen Fig. 1.C is the SEM photo of aluminum matrix composite among Fig. 3.
The room temperature compression performance experiment of the sample that this experiment is prepared is carried out at Japanese Shimadzu GX-A type testing machine for mechanical properties.Sample size is diameter 1mm, the pole sample of high 2mm.Strain rate is 1 * 10
-4s
-1The upper and lower surface of sample is through mechanical polishing and keep 90 ° uprightly.The engineering stress strain curve figure of gained alloy as shown in Figure 2, the breaking tenacity of this material is 1300MPa as seen from Figure 2, plasticity is 21%.Fig. 4 is the TEM photo of this alloy, shows obviously among the figure that this material structure is the composite structure of submicron fcc-Al and nanocrystalline intermetallics.The fracture mode that is shown as this alloy among Fig. 5 (c) is to rupture behind the large plastometric set.
Embodiment 2
Be with the difference of embodiment 1:
The DSC annealing time that adopts is different, is 120min, the compression curve under this technique as shown in Figure 2, it is organized as shown in Fig. 3 (d), the fracture mode that is shown as this alloy among Fig. 5 (d) is splitting.
The result: compressive strength reduces, without the work hardening phenomenon.
Embodiment 3
Be with the difference of embodiment 1:
The annealing time of present embodiment is 30min, the compression curve under this technique as shown in Figure 2, sample tissue is shown in Fig. 3 (b), the fracture mode that is shown as this alloy among Fig. 5 (b) is cracked.
The result: crystal grain is less, and breaking tenacity is a little more than embodiment 1, and plasticity is about 5%.
Embodiment 4
Be with the difference of embodiment 1:
The alloy of present embodiment is without the isothermal annealing process, and it is cold just to be heated to 380 ℃ of stoves.Compression curve under this technique as shown in Figure 2, sample tissue is shown in Fig. 3 (a), is shown as the similar shear fracture of fracture mode of this alloy among Fig. 5 (a).
The result: crystal grain is very little, intermetallic compound just occurred, and breaking tenacity is very up to 1600MPa, but plasticity is almost nil.
Be with the difference of embodiment 1:
The alloy of present embodiment heats without DSC, directly compresses after the copper mold cooling, as shown in Figure 2.
The result: sample is complete noncrystalline state, and breaking tenacity is about 1200MPa, and elastic limit is 2%.
Embodiment 6
Be with the difference of embodiment 1:
The alloy annealing temperature of present embodiment is 300 ℃, and annealing time is 30min, and atmosphere is constant.
The result: sample is amorphous and nanocrystalline complex tissue, and breaking tenacity is very high about 1800MPa, but plasticity is 0.
Embodiment 7
Be with the difference of embodiment 1:
The alloy annealing temperature of present embodiment is 260 ℃, and annealing time is 30min, and atmosphere is constant.
The result: sample is that noncrystal substrate is mingled with nanometer crystal microstructure, and nanocrystalline size is less, and breaking tenacity is 1500MPa, and plasticity also is 0.
Embodiment 8
Be with the difference of embodiment 1:
The alloy annealing temperature of present embodiment is 200 ℃, and annealing time is 60min, and atmosphere is constant.
The result: sample still presents complete noncrystalline state, and compressive strength plasticity is substantially consistent with non-crystaline amorphous metal.
Embodiment 9
Be with the difference of embodiment 1:
The alloy annealing temperature of present embodiment is 550 ℃, and annealing time is 0min, and atmosphere is constant.
The result: the sample tissue structure is submicron fcc-Al and intermetallic compound, and plasticity is about 12%, and breaking tenacity is 1200MPa simultaneously.
Be with the difference of embodiment 1:
The alloying constituent of present embodiment is Al86; Ni7; Co1; Y4; La2 (at.%), annealing temperature is 440 ℃, and annealing time is 30min, and atmosphere is constant.
The result: sample tissue is submicron fcc-Al and intermetallic compound, and plasticity is about 10%, and breaking tenacity is 1300MPa simultaneously.
Embodiment 11
Be with the difference of embodiment 1:
The alloying constituent of present embodiment is Al86; Ni5.5; Co1.5; Y5; La2 (at.%), the DSC annealing temperature is 380 ℃, and annealing time is 90min, and atmosphere is constant.
The result: sample tissue is the thicker fcc-Al of crystal grain and micron order intermetallic compound, and plasticity is about 16%, and breaking tenacity is 1250MPa.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. preparation method with aluminum matrix composite of superstrength and controlled plasticity, the concrete composition of described matrix material is atomic percent:
Ni： 5.5~7
Co： 1~2
Y： 4~5
La： 1~2
Al: surplus;
It is characterized in that, described composite material by adopting isothermal annealing method preparation, the concrete technology parameter is: 380 ℃ of annealing temperatures, annealing time 0 ~ 120min, argon gas atmosphere.
2. according to the preparation method of superstrength claimed in claim 1 and controlled plasticity aluminum-base composite material, it is characterized in that: adopt vacuum melt supercooled copper mold teeming practice to prepare the al based amorphous alloy sample, the casting of vacuum melt supercooled copper mold, the concrete technology parameter is: vacuum tightness is not less than 1.0 * 10
-5Mbar, argon shield pressure 100 ~ 300mbar, 1100 ~ 1300 ℃ of pouring temperatures, soaking time 30 ~ 90s, jetting pressure differs from 600 ~ 800mbar.
3. according to the preparation method of superstrength claimed in claim 1 and controlled plasticity aluminum-base composite material, it is characterized in that: described isothermal annealing is the DSC isothermal annealing.
4. according to the preparation method of claim 1,2 or 3 described superstrengths and controlled plasticity aluminum-base composite material, it is characterized in that: described annealing time is 60min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779683A (en) * | 2017-11-02 | 2018-03-09 | 济南大学 | A kind of Al base noncrystal alloys and preparation method thereof |
| CN112098452A (en) * | 2020-09-10 | 2020-12-18 | 中国科学院金属研究所 | Method for calibrating content of cristobalite in ceramic core |
| US11389859B2 (en) * | 2013-12-11 | 2022-07-19 | The Boeing Company | Method for production of performance enhanced metallic materials |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11389859B2 (en) * | 2013-12-11 | 2022-07-19 | The Boeing Company | Method for production of performance enhanced metallic materials |
| CN107779683A (en) * | 2017-11-02 | 2018-03-09 | 济南大学 | A kind of Al base noncrystal alloys and preparation method thereof |
| CN107779683B (en) * | 2017-11-02 | 2019-08-27 | 济南大学 | A kind of Al base noncrystal alloy and preparation method thereof |
| CN112098452A (en) * | 2020-09-10 | 2020-12-18 | 中国科学院金属研究所 | Method for calibrating content of cristobalite in ceramic core |
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