High-strength anti-fatigue aluminum alloy and preparation method thereof

An anti-fatigue, aluminum alloy technology, applied in the field of aluminum materials, can solve the problems of limited application range, gap, and easy failure of aluminum alloy components

Active Publication Date: 2020-01-07
黄山市龙跃铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of science and technology and industrial economy in recent years, new requirements have been put forward for the performance of materials, and aluminum alloy profiles are facing unprecedented challenges. There are many kinds of alloys, but there is still a certain gap with foreign countries
Some properties of existing aluminum alloy profiles are still not ideal, such as strength, fatigue resistance and heat resistance, which makes aluminum alloy components prone to failure in practical applications, and limits their application range to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-strength anti-fatigue aluminum alloy, its composition includes: Cu: 4.1%, Mg: 0.6%, Mn: 0.69%, Ti: 0.5%, La: 0.1%, Ni: 0.15%, Fe: 0.46%. , Si: 0.11%, Zr: 0.1%, Ce: 0.12%, W: 0.13%, Y: 0.12%, Ge: 0.37%, Sn: 0.03%, Pr+Nd+Er: 0.22%, V: 0.05%, The balance is Al.

Embodiment 2

[0024] A high-strength anti-fatigue aluminum alloy, its composition includes: Cu: 3.6%, Mg: 0.9%, Mn: 0.57%, Ti: 0.55%, La: 0.17%, Ni: 0.31%, Fe: 0.53%. , Si: 0.27%, Zr: 0.13%, Ce: 0.26%, W: 0.1%, Y: 0.19%, Ge: 0.46%, Sn: 0.07%, Pr: 0.02%, Nd: 0.07%, Er: 0.2% , V: 0.09%, and the balance is Al.

[0025] The present invention also proposes a method for preparing the high-strength anti-fatigue aluminum alloy, comprising the following steps:

[0026] S1, Al-Cu master alloy, pure magnesium, Al-Mn master alloy, Al-Ti master alloy, Al-La master alloy, Al-Ni master alloy, Al-Fe master alloy, Al-Si master alloy, Al- Zr master alloy, Al-Ce master alloy, Al-W master alloy, Al-Y master alloy, pure germanium, Al-Sn master alloy, Al-Pr master alloy, Al-Nd master alloy, Al-Er master alloy, Al -V intermediate alloy and high-purity aluminum are used as raw materials, and the raw materials are melted and cast to obtain alloy ingots;

[0027] S2. Perform homogenization treatment, hot rolling,...

Embodiment 3

[0029]A high-strength anti-fatigue aluminum alloy, its composition includes: Cu: 3.8%, Mg: 0.9%, Mn: 0.62%, Ti: 0.27%, La: 0.08%, Ni: 0.27%, Fe: 0.41%. , Si: 0.19%, Zr: 0.04%, Ce: 0.17%, W: 0.18%, Y: 0.16%, Ge: 0.32%, Sn: 0.12%, Pr: 0.03%, Nd: 0.01%, Er: 0.12% , V: 0.06%, and the balance is Al.

[0030] The present invention also proposes a method for preparing the high-strength anti-fatigue aluminum alloy, comprising the following steps:

[0031] S1, Al-Cu master alloy, pure magnesium, Al-Mn master alloy, Al-Ti master alloy, Al-La master alloy, Al-Ni master alloy, Al-Fe master alloy, Al-Si master alloy, Al- Zr master alloy, Al-Ce master alloy, Al-W master alloy, Al-Y master alloy, pure germanium, Al-Sn master alloy, Al-Pr master alloy, Al-Nd master alloy, Al-Er master alloy, Al -V intermediate alloy and high-purity aluminum are used as raw materials, and the raw materials are melted and cast to obtain alloy ingots;

[0032] S2. Perform homogenization treatment, hot rolling...

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Abstract

The invention discloses a high-strength anti-fatigue aluminum alloy and a preparation method thereof. The alloy is prepared from, by mass percent, 3.6%-4.1% of Cu, 0.6%-1.1% of Mg, 0.57%-0.69% of Mn,0.35%-0.72% of Ti+La, 0.15%-0.31% of Ni, 0.41%-0.53% of Fe, 0.11%-0.27% of Si, 0.04%-0.13% of Zr, 0.12%-0.26% of Ce, 0.1%-0.18% of W, 0.12%-0.19% of Y, 0.32%-0.46% of Ge, 0.03%-0.12% of Sn, 0.16%-0.29% of Pr+Nd+Er, 0.05%-0.09% of V and the balance Al. The preparation of the aluminum alloy is simple in process, and the obtained aluminum alloy is high in strength, good in toughness and excellent inheat stability and fatigue resistance.

Description

technical field [0001] The invention relates to the technical field of aluminum materials, in particular to a high-strength anti-fatigue aluminum alloy and a preparation method thereof. Background technique [0002] Aluminum alloy is a general term for alloys with aluminum as the matrix element. As the most widely used non-ferrous metal structural material in the industry, it has low density, high strength, good plasticity, easy processing, corrosion resistance, electrical conductivity, thermal conductivity and corrosion resistance. Excellent, easy surface coloring, recyclable regeneration and other advantages, has been widely used in aviation, aerospace, automobiles, construction packaging, ships and chemical industries and other fields. With the rapid development of science and technology and industrial economy in recent years, new requirements have been put forward for the performance of materials, and aluminum alloy profiles are facing unprecedented challenges. There ar...

Claims

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Application Information

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IPC IPC(8): C22C21/16C22C1/03C22F1/057
CPCC22C1/026C22C1/03C22C21/16C22F1/002C22F1/057
Inventor 金义泉
Owner 黄山市龙跃铜业有限公司
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