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High-strength aluminum alloy material and preparing method thereof

A technology of aluminum alloy materials and aluminum-nickel alloys, which is applied in the field of aluminum alloy materials, can solve problems such as low strength, and achieve the effects of increasing strength, increasing volume fraction, and improving mechanical properties

Inactive Publication Date: 2019-05-17
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Technical problem to be solved by the present invention: Aiming at the shortcomings of the current cast aluminum-silicon alloy such as low strength, the present invention provides a high-strength aluminum alloy material

Method used

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  • High-strength aluminum alloy material and preparing method thereof
  • High-strength aluminum alloy material and preparing method thereof
  • High-strength aluminum alloy material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: Prepare high-strength aluminum alloy material as follows:

[0042] 1. Preparation of raw materials:

[0043] Raw materials Si, Fe, Cu, Mn, Mg, Sn, Ru, Lu, and Al are all made of pure substances, with a purity greater than 99.5%; Ni is made of aluminum-nickel alloy, and the weight percentage of Ni is 15% %, the rest is aluminum; Sr is in the form of aluminum-strontium alloy as the raw material for preparation, wherein the weight percentage of Sr is 15%, and the rest is aluminum, P is in the form of aluminum-phosphorus alloy, and the weight percentage of P is 10% %, and the rest is aluminum.

[0044] Mn, Ru, and Lu pure material raw materials are all in powder form, with an average particle size of 200 mesh; Al-Ni alloy raw materials are in powder form, with a powder particle size of 100 mesh; aluminum-phosphorus alloy and aluminum-strontium alloy are both in granular form, with a particle diameter of 2mm, Si, Fe, Cu, Mg, Al are lumps or metal ingots, Sn i...

Embodiment 2

[0055] Embodiment 2: Prepare high-strength aluminum alloy material as follows:

[0056] 1. Preparation of raw materials:

[0057] The raw materials Si, Fe, Cu, Mn, Mg, Sn, Ru, Lu, and Al are all made of pure substances, and the purity is greater than 99.9%; Ni is used as a raw material in the form of aluminum-nickel alloy, and the weight percentage of Ni is 15% %, the rest is aluminum; Sr is in the form of aluminum-strontium alloy as the raw material for preparation, wherein the weight percentage of Sr is 15%, and the rest is aluminum, P is in the form of aluminum-phosphorus alloy, and the weight percentage of P is 10% %, and the rest is aluminum.

[0058] Mn, Ru, and Lu pure material raw materials are all in powder form, with an average particle size of 300 mesh; Al-Ni alloy raw materials are in powder form, with a powder particle size of 200 mesh; aluminum-phosphorus alloy and aluminum-strontium alloy are both in granular form, with a particle diameter of 4mm, Si, Fe, Cu, ...

Embodiment 3

[0069] Embodiment 3: Prepare high-strength aluminum alloy material as follows:

[0070] 1. Preparation of raw materials:

[0071]The raw materials Si, Fe, Cu, Mn, Mg, Sn, Ru, Lu, and Al are all made of pure substances, and the purity is greater than 99.7%; Ni is used as a raw material in the form of aluminum-nickel alloy, and the weight percentage of Ni is 15% %, the rest is aluminum; Sr is in the form of aluminum-strontium alloy as the raw material for preparation, wherein the weight percentage of Sr is 15%, and the rest is aluminum, P is in the form of aluminum-phosphorus alloy, and the weight percentage of P is 10% %, and the rest is aluminum.

[0072] Mn, Ru, and Lu pure material raw materials are all in powder form, with an average particle size of 200-300 mesh; aluminum-nickel alloy raw materials are in powder form, with a powder particle size of 100-200 mesh, and aluminum-phosphorus alloy and aluminum-strontium alloy are both in granular form , The particle diameter i...

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Abstract

The invention discloses a high-strength aluminum alloy material. The material comprises, by weight percent, 0.6 to 0.8% of Fe, 0.95 to 1.25% of Cr, 2 to 6% of Zn, 0.05 to 0.08% of Pt, 2 to 6% of Sn, 0.2 to 0.8% of Bi, 0.01 to 0.04% of Th, 0.1 to 0.5% of Sb, 0.01 to 0.04% of Dy, 0.01 to 0.04% of P and the balance Al. Solute atoms fused into the solid solution enable strength and hardness of the alloy solid solution to be increased, according to the preparing method, pre-cooling casting chilling action is adopted, refined crystalline strengthening of elements is promoted, during casting, an Al-Sr alloy is adopted for carrying out the metamorphic reaction, and the volume fraction of the alpha phase crystal form can be effectively improved, through hot extrusion and rolling process after casting, the microstructure is improved, the mechanical property of the aluminum alloy can be improved, and the material can be widely applied to the manufacturing field.

Description

technical field [0001] The invention belongs to the field of aluminum alloy materials, in particular to a high-strength aluminum alloy material and a preparation method thereof. Background technique [0002] Ultra-high-strength aluminum alloy is a type of ultra-high-strength aluminum alloy material developed in the 1960s based on the needs of aerospace applications. This type of alloy has excellent mechanical properties, and the effect of reducing the weight of components is particularly obvious. Representative preparation technologies for ultra-high-strength aluminum alloy materials include: semi-continuous casting technology, powder metallurgy technology, spray deposition technology, etc. [0003] The semi-continuous casting preparation technology is currently one of the main preparation technologies for 7000 series aluminum alloy ingots. This technology was successfully developed by France for the first time, and then different types of crystallizers were developed based...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/03C22F1/043B22C1/02
Inventor 赵浩峰于鹏郑建华李紫嫣
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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