CN103255322B - High-toughness ultrathin die-cast aluminum lithium alloy - Google Patents
High-toughness ultrathin die-cast aluminum lithium alloy Download PDFInfo
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- CN103255322B CN103255322B CN201310212826.XA CN201310212826A CN103255322B CN 103255322 B CN103255322 B CN 103255322B CN 201310212826 A CN201310212826 A CN 201310212826A CN 103255322 B CN103255322 B CN 103255322B
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Abstract
The invention discloses a high-toughness ultrathin die-cast aluminum lithium alloy which comprises the following components in percentage by weight: 1-3% of zinc, 5-7% of silicon, 0.3-3% of copper, 0.1-10% of magnesium, 0.1-0.5% of lithium, 0.3-0.6% of strontium, 0.1-0.3% of lanthanum, 0.1-0.3% of cerium and the balance of aluminum. The high-toughness ultrathin die-cast aluminum lithium alloy disclosed by the invention has the advantages of better fatigue resistance, crack growth resistance, corrosion resistance and heat resistance.
Description
Technical field
The present invention relates to a kind of die casting aluminium lithium alloy, the ultra-thin die casting aluminium lithium alloy of especially a kind of high tenacity.
Background technology
Current aluminium diecast alloy technology is quite ripe, but because the geometrical body of aluminium diecast alloy is simple, mechanical property is low, and therefore range of application is subject to certain limitation.For adapting to the demand of the large-scale production that has certain mechanical property and the good general decoration of solidity to corrosion, China is in the urgent need to the ultra-thin die casting aluminium lithium alloy of high tenacity.Chinese patent literature CN1062176A discloses a kind of high performance rare-earth aluminium lithium alloy, this alloy for the tired flawless life-span that solves existing Al-Li alloy and exist low, short crack spreading rate is fast, the problems such as solidity to corrosion is poor, and provide a kind of Al-Li-Cu-Zr-Ce rare-earth aluminium-lithium alloy of (or La), this Al-Li alloy, in actual use, if used as sheet material, its tired flawless life-span increases, and short crack spreading rate decreases, still, it uses as die-casting material, and but performance is not fine aspect these two.Therefore, be badly in need of wanting a kind of Al-Li alloy on market, it will have good tired flawless life-span and lower short crack spreading rate, and is suitable for producing by die casting mode the Al-Li alloy of parts.
Summary of the invention
In order to overcome the problems referred to above, the present invention provides a kind of fatigue resistance to society, crack propagation drag, and solidity to corrosion, thermotolerance is all better, and is suitable for producing in die casting mode the ultra-thin die casting aluminium lithium alloy of high tenacity of parts.
Technical scheme of the present invention is: provide a kind of high tenacity ultra-thin die casting aluminium lithium alloy, be made up of: zinc 1-3% the component of following weight per-cent; Silicon 5-7%; Copper 0.3-3%; Manganese 0.1-10%; Lithium 0.1-0.5%; Strontium 0.3-0.6%; Lanthanum 0.1-0.3%; Cerium 0.1-0.3%; Surplus is aluminium.
The present invention preferably scheme is the ultra-thin die casting aluminium lithium alloy of described high tenacity, is made up of: zinc 1.5-2.5% the component of following weight per-cent; Silicon 5.5-6.5%; Copper 0.5-2.5%; Manganese 1-8%; Lithium 0.2-0.4%; Strontium 0.4-0.5%; Lanthanum 0.2-0.3%; Cerium 0.2-0.3%; Surplus is aluminium.
The present invention has all better advantages of fatigue resistance, crack propagation drag, solidity to corrosion and thermotolerance.
Embodiment
Embodiment 1
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1%; Silicon 5%; Copper 0.3%; Manganese 0.1%; Lithium 0.1%; Strontium 0.3%; Lanthanum 0.1%; Cerium 0.1%; Surplus is aluminium.
Embodiment 2
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1.5%; Silicon 5.5%; Copper 0.5%; Manganese 1%; Lithium 0.2%; Strontium 0.4%; Lanthanum 0.2%; Cerium 0.2%; Surplus is aluminium.
Embodiment 3
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 2.5%; Silicon 6.5%; Copper 2.5%; Manganese 8%; Lithium 0.4%; Strontium 0.5%; Lanthanum 0.3%; Cerium 0.3%; Surplus is aluminium.
Embodiment 4
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 3%; Silicon 7%; Copper 3%; Manganese 10%; Lithium 0.5%; Strontium 0.6%; Lanthanum 0.3%; Cerium 0.3%; Surplus is aluminium.
If on above-mentioned basic component, add weight percent 0.1-0.5% samarium or/ytterbium, its better effects if.Concrete component is as follows:
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1-3%; Silicon 5-7%; Copper 0.3-3%; Manganese 0.1-10%; Lithium 0.1-0.5%; Strontium 0.3-0.6%; Lanthanum 0.1-0.3%; Cerium 0.1-0.3%; Samarium 0.1-0.5%; Surplus is aluminium.
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1-3%; Silicon 5-7%; Copper 0.3-3%; Manganese 0.1-10%; Lithium 0.1-0.5%; Strontium 0.3-0.6%; Lanthanum 0.1-0.3%; Cerium 0.1-0.3%; Ytterbium 0.1-0.5%; Surplus is aluminium.
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1-3%; Silicon 5-7%; Copper 0.3-3%; Manganese 0.1-10%; Lithium 0.1-0.5%; Strontium 0.3-0.6%; Lanthanum 0.1-0.3%; Cerium 0.1-0.3%; Samarium 0.1-0.5%; Ytterbium 0.1-0.5%; Surplus is aluminium.
Wherein, originally preferably scheme is the ultra-thin die casting aluminium lithium alloy of described high tenacity, is made up of: zinc 1.5-2.5% the component of following weight per-cent; Silicon 5.5-6.5%; Copper 0.5-2.5%; Manganese 1-8%; Lithium 0.2-0.4%; Strontium 0.4-0.5%; Lanthanum 0.2-0.3%; Cerium 0.2-0.3%; Samarium 0.2-0.4%; Surplus is aluminium.
The ultra-thin die casting aluminium lithium alloy of described high tenacity, is made up of the component of following weight per-cent: zinc 1.5-2.5%; Silicon 5.5-6.5%; Copper 0.5-2.5%; Manganese 1-8%; Lithium 0.2-0.4%; Strontium 0.4-0.5%; Lanthanum 0.2-0.3%; Cerium 0.2-0.3%; Ytterbium 0.2-0.4%; Surplus is aluminium.
The ultra-thin die casting aluminium lithium alloy of described high tenacity, is made up of the component of following weight per-cent: zinc 1.5-2.5%; Silicon 5.5-6.5%; Copper 0.5-2.5%; Manganese 1-8%; Lithium 0.2-0.4%; Strontium 0.4-0.5%; Lanthanum 0.2-0.3%; Cerium 0.2-0.3%; Samarium 0.2-0.4%; Ytterbium 0.2-0.4%; Surplus is aluminium.
Embodiment 5
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1%; Silicon 5%; Copper 0.3%; Manganese 0.1%; Lithium 0.1%; Strontium 0.3%; Lanthanum 0.1%; Cerium 0.1%; Samarium 0.1%; Surplus is aluminium.
Embodiment 6
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1.5%; Silicon 5.5%; Copper 0.5%; Manganese 1%; Lithium 0.2%; Strontium 0.4%; Lanthanum 0.2%; Cerium 0.2%; Samarium 0.2%; Surplus is aluminium.
Embodiment 7
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 2.5%; Silicon 6.5%; Copper 2.5%; Manganese 8%; Lithium 0.4%; Strontium 0.5%; Lanthanum 0.3%; Cerium 0.3%; Samarium 0.4%; Surplus is aluminium.
Embodiment 8
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 3%; Silicon 7%; Copper 3%; Manganese 10%; Lithium 0.5%; Strontium 0.6%; Lanthanum 0.3%; Cerium 0.3%; Samarium 0.5%; Surplus is aluminium.
Embodiment 9
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1%; Silicon 5%; Copper 0.3%; Manganese 0.1%; Lithium 0.1%; Strontium 0.3%; Lanthanum 0.1%; Cerium 0.1%; Ytterbium 0.1%; Surplus is aluminium.
Embodiment 10
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1.5%; Silicon 5.5%; Copper 0.5%; Manganese 1%; Lithium 0.2%; Strontium 0.4%; Lanthanum 0.2%; Cerium 0.2%; Ytterbium 0.2%; Surplus is aluminium.
Embodiment 11
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 2.5%; Silicon 6.5%; Copper 2.5%; Manganese 8%; Lithium 0.4%; Strontium 0.5%; Lanthanum 0.3%; Cerium 0.3%; Ytterbium 0.4%; Surplus is aluminium.
Embodiment 12
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 3%; Silicon 7%; Copper 3%; Manganese 10%; Lithium 0.5%; Strontium 0.6%; Lanthanum 0.3%; Cerium 0.3%; Ytterbium 0.5%; Surplus is aluminium.
Embodiment 13
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1%; Silicon 5%; Copper 0.3%; Manganese 0.1%; Lithium 0.1%; Strontium 0.3%; Lanthanum 0.1%; Cerium 0.1%; Samarium 0.1%; Ytterbium 0.1%; Surplus is aluminium.
Embodiment 14
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 1.5%; Silicon 5.5%; Copper 0.5%; Manganese 1%; Lithium 0.2%; Strontium 0.4%; Lanthanum 0.2%; Cerium 0.2%; Samarium 0.2%; Ytterbium 0.2%; Surplus is aluminium.
Embodiment 15
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 2.5%; Silicon 6.5%; Copper 2.5%; Manganese 8%; Lithium 0.4%; Strontium 0.5%; Lanthanum 0.3%; Cerium 0.3%; Samarium 0.4%; Ytterbium 0.4%; Surplus is aluminium.
Embodiment 16
The ultra-thin die casting aluminium lithium alloy of a kind of high tenacity, is made up of the component of following weight per-cent: zinc 3%; Silicon 7%; Copper 3%; Manganese 10%; Lithium 0.5%; Strontium 0.6%; Lanthanum 0.3%; Cerium 0.3%; Samarium 0.5%; Ytterbium 0.5%; Surplus is aluminium.
In the various embodiments described above, in component, contained trace element and the impurity that meets national standard is considered as trace element and the impurity that this alloy allows.
The applicant is the various embodiments described above and existing several similar alloy, aspect two of castability and strength propertys, does concrete comparison, and its property is all better than existing several alloy, and concrete outcome is in table one.
Claims (2)
1. the ultra-thin die casting aluminium lithium alloy of high tenacity, is characterized in that, is made up of: zinc 1-3% the component of following weight per-cent; Silicon 5-7%; Copper 0.3-3%; Manganese 0.1-10%; Lithium 0.1-0.5%; Strontium 0.3-0.6%; Lanthanum 0.1-0.3%; Cerium 0.1-0.3%; Surplus is aluminium.
2. the ultra-thin die casting aluminium lithium alloy of high tenacity according to claim 1, is characterized in that, is made up of: zinc 1.5-2.5% the component of following weight per-cent; Silicon 5.5-6.5%; Copper 0.5-2.5%; Manganese 1-8%; Lithium 0.2-0.4%; Strontium 0.4-0.5%; Lanthanum 0.2-0.3%; Cerium 0.2-0.3%; Surplus is aluminium.
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| CN201310212826.XA CN103255322B (en) | 2013-06-02 | 2013-06-02 | High-toughness ultrathin die-cast aluminum lithium alloy |
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| CN201310212826.XA CN103255322B (en) | 2013-06-02 | 2013-06-02 | High-toughness ultrathin die-cast aluminum lithium alloy |
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| CN103255322B true CN103255322B (en) | 2014-12-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1062176A (en) * | 1990-12-05 | 1992-06-24 | 西北工业大学 | High performance rare-earth aluminium lithium alloy |
| CN101805845B (en) * | 2009-08-27 | 2011-06-22 | 贵州华科铝材料工程技术研究有限公司 | Li-Nb-RE high-strength heat-resistance aluminium alloy material and preparation method thereof |
| CN102925762A (en) * | 2012-11-05 | 2013-02-13 | 虞海香 | Aluminum alloy for high-pressure casting |
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