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Al-Mg-Sc-Zr aluminum alloy plate and manufacturing method thereof

A zirconium-aluminum alloy and a manufacturing method, which are applied in the field of aluminum-magnesium-scandium-zirconium-aluminum alloy sheets and their manufacturing fields, can solve the problems of high space vehicle carrying capacity and payload launch cost, and achieve high anti-radiation stability and good corrosion resistance. , the effect of inhibiting recrystallization

Active Publication Date: 2015-06-10
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing aluminum-magnesium alloy used in aerospace affects the carrying capacity, payload and high launch cost of aerospace vehicles, and provides an aluminum-magnesium-scandium-zirconium-aluminum alloy plate and a manufacturing method thereof

Method used

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specific Embodiment approach 1

[0015] Specific embodiment 1: In this embodiment, the mass percentage of each element in an aluminum-magnesium-scandium-zirconium-aluminum alloy plate is as follows: Mg: 5.5%-6.5%, Mn: 0.15%-0.4%, Sc: 0.2%-0.4%, Zr: 0.1%~0.2%, Ti: 0.02%~0.05%, Be: 0.0005%.~0.005%, Cu﹤0.05%, Zn﹤0.05%, Si﹤0.10%, Fe﹤0.20%, single impurity≤0.05%, total Impurity≤0.15%, the balance is Al, and the mass percentage of Fe>Si.

[0016] The impurity elements in this embodiment originate from aluminum ingots; impurities Si﹤0.10%, Fe﹤0.20%, Cu﹤0.05%, Zn﹤0.05%, other individual impurities≤0.05%, and the total impurities≤0.15%. Impurities have no effect on the properties of aluminum alloy sheets.

[0017] Compared with the currently widely used 5A06 alloy, the aluminum-magnesium-scandium-zirconium alloy plate of this embodiment has higher mechanical properties at room temperature and low temperature, and damage tolerance. Good high concentration hydrogen peroxide compatibility. The advanced surface level c...

specific Embodiment approach 2

[0019] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the mass percentages of the elements in the Al-MgS-Zr-Al alloy plate are as follows: Mg: 6.2%, Mn: 0.15%-0.4%, Sc: 0.25%, Zr : 0.14%, Ti: 0.03%, Be: 0.0025%, Cu﹤0.05%, Zn﹤0.05%, Si﹤0.10%, Fe﹤0.20%, single impurity≤0.05%, total impurity≤0.15%, the balance is Al , and the mass percentage of Fe>the mass percentage of Si. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0020] Specific embodiment three: In this embodiment, a manufacturing method of an aluminum-magnesium-scandium-zirconium-aluminum alloy plate includes the following steps: 1. Ingredients: according to the mass percentage of each element in the aluminum-magnesium-scandium-zirconium-aluminum alloy plate, Mg: 5.5% to 6.5%, Mn: 0.15% ~ 0.4%, Sc: 0.2% ~ 0.4%, Zr: 0.1% ~ 0.2%, Ti: 0.02% ~ 0.05%, Be: 0.0005%. ~ 0.005% and the balance of Al Weighing pure aluminum Ingots, pure magnesium ingots, aluminum-manganese master alloys, aluminum-scandium master alloys, aluminum-titanium master alloys, magnesium-zirconium master alloys, aluminum-beryllium master alloys and aluminum-titanium-boron grain refiners;

[0021] 2. Melting: A. Add the pure aluminum ingot and aluminum-manganese intermediate alloy weighed in step 1 into the melting furnace by using the electric furnace self-feeding solid material method. The melting temperature is 760-810°C. When the melt temperature reaches 800°C, add alu...

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Abstract

The invention provides an Al-Mg-Sc-Zr aluminum alloy plate and a manufacturing method thereof, and relates to the Al-Mg-Sc-Zr aluminum alloy plate and the manufacturing method thereof. Traditional aluminium magnesium alloy is replaced by the novel aluminum alloy plate, so that the purposes of further reducing the dead-weight of aerospace crafts such as spacecrafts, missiles and satellites, improving the carrying capacity, increasing the useful load, and lowering the cost for launching are achieved. The Al-Mg-Sc-Zr aluminum alloy plate contains the following elements: Mg, Mn, Sc, Zr, Ti and Be. The manufacturing method comprises the steps of firstly, burdening; secondly, smelting; thirdly, casting; fourthly, homogenizing annealing; fifthly, hot rolling; sixthly, prestretching; seventhly, finished product saw cutting; and then the Al-Mg-Sc-Zr aluminum alloy plate is obtained. The Al-Mg-Sc-Zr aluminum alloy plate has the advantages that the normal-temperature and low-temperature mechanical property and the damage-resisting tolerance are higher, the welding performance and the corrosion resistance are excellent, and the high concentration hydrogen peroxide compatibility is better. The Al-Mg-Sc-Zr aluminum alloy plate is applicable to the manufacturing field of astronautic and aeronautic aluminum alloy plates.

Description

technical field [0001] The invention relates to an aluminum-magnesium-scandium-zirconium-aluminum alloy plate and a manufacturing method thereof. Background technique [0002] In order to meet the design and material selection needs of aerospace users, further reduce the self-weight of spacecraft, missiles and satellites and other aerospace vehicles, greatly improve the carrying capacity, increase the payload and reduce the launch cost, a new type of aluminum alloy plate is needed to replace the traditional aluminum magnesium. alloy. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the existing aluminum-magnesium alloy used in aerospace affects the carrying capacity, payload and high launch cost of aerospace vehicles, and provides an aluminum-magnesium-scandium-zirconium-aluminum alloy plate and a manufacturing method thereof. [0004] The mass percentages of the elements in the aluminum magnesium scandium zirconium alum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/03C22F1/047B22D7/00
CPCB22D1/007C22C1/026C22C1/03C22C21/08C22F1/047
Inventor 路丽英吕新宇雷金琴林森丛福官王强李海仙于莉莉王海彬殷云霞
Owner NORTHEAST LIGHT ALLOY CO LTD
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