CN104060130A - Lithium aluminum alloy used for aviation - Google Patents

Lithium aluminum alloy used for aviation Download PDF

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Publication number
CN104060130A
CN104060130A CN201410307365.9A CN201410307365A CN104060130A CN 104060130 A CN104060130 A CN 104060130A CN 201410307365 A CN201410307365 A CN 201410307365A CN 104060130 A CN104060130 A CN 104060130A
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CN
China
Prior art keywords
accounts
lithium
aviation
chromium
manganese
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410307365.9A
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Chinese (zh)
Inventor
刘慧慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangjagang City Jia Sheng Machinery Co Ltd
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Zhangjagang City Jia Sheng Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Zhangjagang City Jia Sheng Machinery Co Ltd filed Critical Zhangjagang City Jia Sheng Machinery Co Ltd
Priority to CN201410307365.9A priority Critical patent/CN104060130A/en
Publication of CN104060130A publication Critical patent/CN104060130A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a lithium aluminum alloy used for the aviation. The lithium aluminum alloy used for the aviation is composed of six metal elements of aluminum, lithium, zinc, chromium, manganese and titanium. The elements of the lithium aluminum alloy used for the aviation comprise, by weight percentage, 86.4% to 91.8% of the aluminum, 2.8% to 4.3% of the lithium, 1.6% to 2.5% of the zinc, 1.2% to 2.1% of the chromium, 0.7% to 1.5% of the manganese and 1.9% to 3.2% of the titanium. According to the lithium aluminum alloy used for the aviation, the lithium, the zinc, the chromium, the manganese the titanium and other metal elements are added into the aluminum-based alloy with the aluminum as the substrate, so that proportion of the alloy can be reduced, rigidity is improved, high strength, good corrosion resistance and fatigue resistance and proper scalability are still maintained, meanwhile production cost is reduced, and the application range is broadened.

Description

A kind of aviation lithium-aluminium alloy
Technical field
The present invention relates to a kind of alloy, be specifically related to a kind of aviation lithium-aluminium alloy.
Background technology
Novel material is the important foundation of aeronautical and space technology, and the development of aeronautical and space technology constantly proposes new problem and requirement to Materials science again.Al-Li alloy is a field with the fastest developing speed in airframe material in recent ten years, be subject to the extensive concern of Aeronautics and Astronautics and seafaring, attracting many scientists to study it, as the exploitation cause of Al-Li alloy springs up like bamboo shoots after a spring rain, developing rapidly.But along with scientific and technical development and improvement, the lithium-aluminium alloy instantly using cannot meet the user demand in market.
Summary of the invention
The object of the present invention is to provide one to fall low-alloyed proportion, increase rigidity, keep higher intensity, preferably erosion resistance and fatigue resistance and suitable ductility, reduced production cost, expanded the aviation lithium-aluminium alloy of the scope of application.
Technical scheme of the present invention is, a kind of aviation lithium-aluminium alloy, described aviation is combined by aluminium, lithium, zinc, chromium, manganese and six kinds of metal ingredients of titanium with lithium-aluminium alloy, described aviation is respectively with the shared weight percent of each composition in lithium-aluminium alloy: described aluminium accounts for 86.4%-91.8%, described lithium accounts for 2.8%-4.3%, and described zinc accounts for 1.6%-2.5%, and described chromium accounts for 1.2%-2.1%, described manganese accounts for 0.7%-1.5%, and described titanium accounts for 1.9%-3.2%.
In a preferred embodiment of the present invention, described aviation is specially with the shared weight percent of each composition in lithium-aluminium alloy: described aluminium accounts for 91.2%, and described lithium accounts for 2.9%, described zinc accounts for 1.7%, described chromium accounts for 1.3%, and described manganese accounts for 0.8%, and described titanium accounts for 2.1%.
In a preferred embodiment of the present invention, described aviation is specially with the shared weight percent of each composition in lithium-aluminium alloy: described aluminium accounts for 87.1%, and described lithium accounts for 4.2%, described zinc accounts for 2.4%, described chromium accounts for 1.9%, and described manganese accounts for 1.3%, and described titanium accounts for 3.1%.
Of the present invention is a kind of aviation lithium-aluminium alloy, by add the metallic elements such as lithium, zinc, chromium, manganese and titanium in the aluminum base alloy taking aluminium as base, low-alloyed proportion can fall, increase rigidity, and still keep higher intensity, good erosion resistance and fatigue resistance and suitable ductility, reduce production cost simultaneously, expanded the scope of application.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Of the present invention is a kind of aviation lithium-aluminium alloy, described aviation is combined by aluminium, lithium, zinc, chromium, manganese and six kinds of metal ingredients of titanium with lithium-aluminium alloy, described aviation is respectively with the shared weight percent of each composition in lithium-aluminium alloy: described aluminium accounts for 86.4%-91.8%, described lithium accounts for 2.8%-4.3%, described zinc accounts for 1.6%-2.5%, described chromium accounts for 1.2%-2.1%, and described manganese accounts for 0.7%-1.5%, and described titanium accounts for 1.9%-3.2%.
Further, described aviation is specially with the shared weight percent of each composition in lithium-aluminium alloy: described aluminium accounts for 91.2%, and described lithium accounts for 2.9%, and described zinc accounts for 1.7%, and described chromium accounts for 1.3%, and described manganese accounts for 0.8%, and described titanium accounts for 2.1%.
Further, described aviation is specially with the shared weight percent of each composition in lithium-aluminium alloy: described aluminium accounts for 87.1%, and described lithium accounts for 4.2%, and described zinc accounts for 2.4%, and described chromium accounts for 1.9%, and described manganese accounts for 1.3%, and described titanium accounts for 3.1%.
In addition, can be by regulating the Different Weight per-cent of each composition in alloy, the alloy property height obtaining is differed.
Of the present invention is a kind of aviation lithium-aluminium alloy, by add the metallic elements such as lithium, zinc, chromium, manganese and titanium in the aluminum base alloy taking aluminium as base, low-alloyed proportion can fall, increase rigidity, and still keep higher intensity, good erosion resistance and fatigue resistance and suitable ductility, reduce production cost simultaneously, expanded the scope of application.
The foregoing is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.

Claims (3)

1. an aviation lithium-aluminium alloy, it is characterized in that: described aviation lithium-aluminium alloy is combined by aluminium, lithium, zinc, chromium, manganese and six kinds of metal ingredients of titanium, described aviation is respectively with the shared weight percent of each composition in lithium-aluminium alloy: described aluminium accounts for 86.4%-91.8%, described lithium accounts for 2.8%-4.3%, described zinc accounts for 1.6%-2.5%, described chromium accounts for 1.2%-2.1%, and described manganese accounts for 0.7%-1.5%, and described titanium accounts for 1.9%-3.2%.
2. aviation lithium-aluminium alloy according to claim 1, it is characterized in that: described aviation shared weight percent of each composition in lithium-aluminium alloy is specially: described aluminium accounts for 91.2%, described lithium accounts for 2.9%, described zinc accounts for 1.7%, described chromium accounts for 1.3%, described manganese accounts for 0.8%, and described titanium accounts for 2.1%.
3. aviation lithium-aluminium alloy according to claim 1, it is characterized in that: described aviation shared weight percent of each composition in lithium-aluminium alloy is specially: described aluminium accounts for 87.1%, described lithium accounts for 4.2%, described zinc accounts for 2.4%, described chromium accounts for 1.9%, described manganese accounts for 1.3%, and described titanium accounts for 3.1%.
CN201410307365.9A 2014-07-01 2014-07-01 Lithium aluminum alloy used for aviation Pending CN104060130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410307365.9A CN104060130A (en) 2014-07-01 2014-07-01 Lithium aluminum alloy used for aviation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410307365.9A CN104060130A (en) 2014-07-01 2014-07-01 Lithium aluminum alloy used for aviation

Publications (1)

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CN104060130A true CN104060130A (en) 2014-09-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108699636A (en) * 2016-01-22 2018-10-23 本田技研工业株式会社 Acieral

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001391A1 (en) * 1982-10-05 1984-04-12 Secr Defence Brit Improvements in or relating to aluminium alloys
GB2137227B (en) * 1983-03-31 1986-04-09 Alcan Int Ltd Aluminium-lithium alloys
CN101967588A (en) * 2010-10-27 2011-02-09 中国航空工业集团公司北京航空材料研究院 Damage-resistant aluminum-lithium alloy and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001391A1 (en) * 1982-10-05 1984-04-12 Secr Defence Brit Improvements in or relating to aluminium alloys
GB2137227B (en) * 1983-03-31 1986-04-09 Alcan Int Ltd Aluminium-lithium alloys
CN101967588A (en) * 2010-10-27 2011-02-09 中国航空工业集团公司北京航空材料研究院 Damage-resistant aluminum-lithium alloy and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108699636A (en) * 2016-01-22 2018-10-23 本田技研工业株式会社 Acieral

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Application publication date: 20140924