CN1546709A - Deformable aluminium alloy containing aluminum, zinc, magnesium, copper and beryllium - Google Patents
Deformable aluminium alloy containing aluminum, zinc, magnesium, copper and beryllium Download PDFInfo
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- CN1546709A CN1546709A CNA2003101115146A CN200310111514A CN1546709A CN 1546709 A CN1546709 A CN 1546709A CN A2003101115146 A CNA2003101115146 A CN A2003101115146A CN 200310111514 A CN200310111514 A CN 200310111514A CN 1546709 A CN1546709 A CN 1546709A
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Abstract
The invention discloses an aluminium, zinc, magnesium, copper and beryllium deformed aluminium alloy, wherein the content of a finite amount of alloyed beryllium element and the matched heat treatment can improve the strength and hardness for these alloys, the combination property for the alloys can also be improved.
Description
Technical field
The invention belongs to wrought aluminium alloy material field, being specifically related to a kind of is the novel wrought aluminium alloy material of alloying element as Al-Zn-Mg-Cu with beryllium element.
Background technology
Al-Zn-Mg-Cu is that wrought aluminium alloy is the high-intensity wrought aluminium alloy of a class, and it represents alloy is 7475 aluminium alloys of the U.S., is equivalent to the LC4 aluminium alloy of China.
(wt.%) is as follows for 7475 al alloy components and content thereof: Zn:5.20～6.20, and Mg:1.90～2.60, Cu:1.20～1.90, Cr:0.18～0.25, Mn :≤0.06, Fe :≤0.12, Si :≤0.10, Ti :≤0.06:, surplus is Al.
(wt.%) is as follows for LC4 al alloy component and content thereof: Zn:5.0～7.0, and Mg:1.80～2.8, Cu:1.40～2.0, Cr:0.1～0.25, Mn:0.02～0.06, Fe :≤0.12, Si :≤0.10, Ti :≤0.06, surplus is Al.
Al-Zn-Mg-Cu is that alloy belongs to heat-treatable strengthened wrought aluminium alloy, therefore, to the development of its performance mainly based on the control of microstructure, this control is to realize by heat-treating to the adjustment of alloying constituent and to alloy, wherein, most important a kind of heat treating method is quenching+age hardening.
Beryllium also is the very strong element of a kind of chemically reactive, can form with other many elements to contain beryllium alloy.As aluminium beryllium alloy, titanium-beryllium, beryllium copper, nickel-beryllium alloy etc.In these alloys, beryllium makes alloy have lower density, higher strength and stiffness, and as casting aluminium beryllium alloy Beralcast191, its density is 2180kg/m
3, than aluminium alloy A-356 (2680kg/m
3), titanium alloy T i-6Al-4V (4700kg/m
3), aluminum composite Al-20SiC (2740kg/m
3) low, its yield strength is 158.6MPa, and tensile strength is 215MPa, and the rigidity of this alloy is 3.5 times of aluminium, and its quality is lighter by 22% than aluminium.The rigidity of aluminium beryllium alloy Beralcast191 also is the several times of magnesium and aluminum matrix composite rigidity.But beryllium alumin(i)um alloy has good castibility, also can heat-treat it, when adopting hot isostatic pressing to make, not only can improve its intensity but also can improve its plasticity.As long as reasonable in design, the comparable conventional cast aluminum alloy part of the quality of beryllium alumin(i)um alloy part is light more than 50%, and has good comprehensive performances.
Summary of the invention
The object of the present invention is to provide a kind of aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy, changing the tissue that former Al-Zn-Mg-Cu is a wrought aluminium alloy, thereby continue to have improved its over-all properties.
The present invention's aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy, alloying element comprise that aluminium zinc-magnesium copper is the various elements of wrought aluminium alloy, and wherein each element wt percentage amounts (Wt.%) is, Zn:5.0～7.0, Mg:1.80～2.80, Cu:1.20～2.0, Cr:0.10～0.25, Mn :≤0.06, Fe :≤0.12, Si :≤0.10, Ti :≤0.06, Al is a surplus, and alloying element also comprises the beryllium element of alloying, and the Be element accounts for 0.03%～0.65% of aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy weight.
The objective of the invention is to develop a kind of new A l-Zn-Mg-Cu is wrought aluminium alloy, be to add a certain amount of beryllium in the wrought aluminium alloy promptly at Al-Zn-Mg-Cu, make beryllium as a kind of alloy element, participate in and act on the phase transformation whole process of this class alloy, thereby over-all properties, particularly hardness and the intensity of this class alloy have been improved.
Neodoxy of the present invention is: adding beryllium element to Al-Zn-Mg-Cu is in the wrought aluminium alloy, makes it to become a kind of alloy element wherein; 0.03%～0.65% the beryllium element melting that accounts for wrought aluminium alloy weight is in the wrought aluminium alloy to Al-Zn-Mg-Cu, can form the aluminum, zinc, magnesium, copper and beryllium alloy series; After beryllium element becomes the element that Al-Zn-Mg-Cu is the alloying in the wrought aluminium alloy, be that the wrought aluminium alloy material is compared, can obviously improve the over-all properties of material, particularly aspect hardness and intensity with former Al-Zn-Mg-Cu.
The roughly step of preparation novel aluminum zinc-magnesium copper wrought aluminium alloy material is: aluminium zinc-magnesium copper wrought aluminium alloy+beryllium constitutes the aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy, wherein, the Be constituent content is 0.03%～0.65% in the alloy, and Be constituent content recommendation is 0.03%～0.60%.
Preparing the used beryllium of this aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy can be the master alloy of beryllium, also can be the beryllium metal.
Description of drawings
Fig. 1 age hardening curves I
Fig. 2 age hardening curves II
Fig. 3 age hardening curves III
Embodiment
The embodiment of different distortion aluminium alloy:
With No. 00 aluminium ingot intensification fusing, temperature when the interpolation order of each alloying element and interpolation is pressed the aluminum alloy melting routine, the last beryllium metal of 0.03%, 0.11%, 0.60% ratio that in aluminum alloy melt, adds respectively again, treat to carry out refining treatment, insulation after it melts fully, pour into stock, rolling, can obtain respectively containing beryllium 0.03% aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy material, contain the aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy material of beryllium 0.11% and contain the aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy material of beryllium 0.60%.Zn:5.41 in the material 1, Mg:2.43, Cu:1.49, Be:0.03, Cr:0.13, Mn :≤0.06, Fe :≤0.12, Si :≤0.10, Ti :≤0.06, Al is a surplus; Zn:5.39 in the material 2, Mg:1.95, Cu:1.23, Be:0.11, Cr:0.20, Mn :≤0.06, Fe :≤0.12, Si :≤0.10, Ti :≤0.06, Al is a surplus; Zn:6.8 in the material 3, Mg:2.36, Cu:2.0, Be:0.6, Cr:0.13, Mn :≤0.06, Fe :≤0.12, Si :≤0.10, Ti :≤0.06, Al is a surplus;
The single-stage aging that the aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy material, the aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy material that contains beryllium 0.11% that contain beryllium 0.039%, the aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy material and 7475 aluminium alloys that contain beryllium 0.60% are carried out under different solid solubility temperatures, the different aging temp is handled respectively, measures their hardness HB and intensity.
Thermal treatment process: 673～783K insulation 1 hour is quenched.Quenchant is a cold water, water temperature＜313K.After the quenching, artificial aging, aging temp is incubated 6～12 hours at 373～403K, and its intensity and hardness all are higher than 7475 aluminium alloys of no Be.Yield strength σ
0.2〉=45MPa, tensile strength sigma
b〉=58MPa; Hardness value is up to 140HB.And the aluminium zinc-magnesium copper wrought aluminium alloy performance index that do not contain beryllium are worth less than this, wherein, and the yield strength σ of 7475 aluminium alloys that performance is best
0.2Be 40～42MPa, tensile strength sigma
bBe 50～54MPa, hardness value is up to 111HB.
Example one:
In temperature is 753K solid solution 1 hour, and under the 393K aging condition, the peak value of hardness of 7475 aluminium alloys is 111HB, and the peak value of hardness that contains the Al-Zn-Mg-Cu-Be aluminium alloy of beryllium 0.03% is 139HB; The peak value of hardness that contains the Al-Zn-Mg-Cu-Be aluminium alloy of beryllium 0.11% is 134HB, and the peak value of hardness that contains the Al-Zn-Mg-Cu-Be aluminium alloy of beryllium 0.60% is 128HB, sees Fig. 1.
Example two:
In temperature is 783K solid solution 1 hour, and under the 393K aging condition, the peak value of hardness of 7475 aluminium alloys is 111HB; The peak value of hardness that contains the Al-Zn-Mg-Cu-Be aluminium alloy of beryllium 0.03% is 140HB; The peak value of hardness that contains the Al-Zn-Mg-Cu-Be aluminium alloy of beryllium 0.11% is 137HB, and the peak value of hardness that contains the Al-Zn-Mg-Cu-Be aluminium alloy of beryllium 0.60% is 130HB, sees Fig. 2.
Example three:
In temperature is 723K solid solution 1 hour, and under the 453K aging condition, the peak value of hardness of 7475 aluminium alloys is 106HB; The peak value of hardness that contains the Al-Zn-Mg-Cu-Be aluminium alloy of beryllium 0.03% is 140HB; The peak value of hardness that contains the Al-Zn-Mg-Cu-Be aluminium alloy of beryllium 0.11% is 137HB, and the peak value of hardness that contains the Al-Zn-Mg-Cu-Be aluminium alloy of beryllium 0.60% is 130HB, sees Fig. 3.
Identical at aging temp, under the identical condition of solid solubility temperature, the aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy is than the hardness height of 7475 aluminium alloys.
Example four;
The Al-Zn-Mg-Cu-Be aluminium alloy that contains beryllium 0.03% is 783K insulation 1 hour in temperature, and shrend is then at temperature 393K insulation 16 hours, its σ
0.2=47.6MPa, σ
b=60.1MPa.
Example five:
The Al-Zn-Mg-Cu-Be aluminium alloy that contains beryllium 0.11% is 753K insulation 1 hour in temperature, and shrend is then at temperature 393K insulation 16 hours, its σ
0.2=47.1MPa, σ
b=59.3MPa.
Example six:
The Al-Zn-Mg-Cu-Be aluminium alloy that contains beryllium 0.60% is 753K insulation 1 hour in temperature, and shrend is then at temperature 393K insulation 16 hours, its σ
0.2=46.1MPa, σ
b=58.5MPa.
Claims (2)
1, a kind of aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy, alloying element comprise that aluminium zinc-magnesium copper is the various elements of wrought aluminium alloy, and wherein each element wt percentage amounts is, Zn:5.0～7.0, Mg:1.80～2.80, Cu:1.20～2.0, Cr:0.10～0.25, Mn :≤0.06, Fe :≤0.12, Si :≤0.10, Ti :≤0.06, Al is a surplus, it is characterized in that alloying element also comprises the beryllium element of alloying, and the Be element accounts for 0.03%～0.65% of aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy weight.
2, aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy according to claim 1 is characterized in that the Be element accounts for 0.03%～0.60% of aluminum, zinc, magnesium, copper and beryllium wrought aluminium alloy weight.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2003101115146A CN1546709A (en) | 2003-12-04 | 2003-12-04 | Deformable aluminium alloy containing aluminum, zinc, magnesium, copper and beryllium |
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| CNA2003101115146A CN1546709A (en) | 2003-12-04 | 2003-12-04 | Deformable aluminium alloy containing aluminum, zinc, magnesium, copper and beryllium |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439533C (en) * | 2006-10-17 | 2008-12-03 | 山东大学 | Aluminium-silicon-copper-magnesium series deforming alloy and its preparing method |
| CN102660693A (en) * | 2011-12-15 | 2012-09-12 | 贵州华科铝材料工程技术研究有限公司 | Aluminum alloy treated by using TiN powder and BeH2 powder, and preparation method thereof |
| CN105441753A (en) * | 2015-11-28 | 2016-03-30 | 丹阳市宸兴环保设备有限公司 | Aluminum alloy rail and manufacturing method thereof |
| CN108048713A (en) * | 2017-12-18 | 2018-05-18 | 华中科技大学 | A kind of aluminium zinc-magnesium copper system high-strength thin-crystal aluminium alloy and preparation method thereof |
-
2003
- 2003-12-04 CN CNA2003101115146A patent/CN1546709A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439533C (en) * | 2006-10-17 | 2008-12-03 | 山东大学 | Aluminium-silicon-copper-magnesium series deforming alloy and its preparing method |
| CN102660693A (en) * | 2011-12-15 | 2012-09-12 | 贵州华科铝材料工程技术研究有限公司 | Aluminum alloy treated by using TiN powder and BeH2 powder, and preparation method thereof |
| CN102660693B (en) * | 2011-12-15 | 2013-06-26 | 贵州华科铝材料工程技术研究有限公司 | Aluminum alloy treated by using TiN powder and BeH2 powder, and preparation method thereof |
| CN105441753A (en) * | 2015-11-28 | 2016-03-30 | 丹阳市宸兴环保设备有限公司 | Aluminum alloy rail and manufacturing method thereof |
| CN108048713A (en) * | 2017-12-18 | 2018-05-18 | 华中科技大学 | A kind of aluminium zinc-magnesium copper system high-strength thin-crystal aluminium alloy and preparation method thereof |
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