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Er,Zr composite rein forced Al-Mg-Mn alloy

A technology for alloys and final products, applied in the field of aluminum alloy materials, can solve problems such as no reports, and achieve high-temperature mechanical properties and improve mechanical properties.

Inactive Publication Date: 2006-10-25
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the above applications and research use mixed rare earths. Although some research has been done on the role of single rare earths Y, Sc, Er, etc. Especially the research and application of Al-Mg-Mn medium-strength, corrosion-resistant and weldable aluminum alloys widely used in the fields of ships, aircrafts, vehicles, etc. have not been reported.

Method used

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  • Er,Zr composite rein forced Al-Mg-Mn alloy
  • Er,Zr composite rein forced Al-Mg-Mn alloy
  • Er,Zr composite rein forced Al-Mg-Mn alloy

Examples

Experimental program
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Effect test

example 1

[0012] Example 1: adopt Al-6%Er master alloy, 2.3% Al-4.52%Zr master alloy, 6.98% Al-10.02%Mn master alloy and 4.8% pure magnesium accounting for 3.33% of the total weight of the alloy, and the rest are Raw material of pure aluminum, ingot metallurgy, covered with covering agent, C 6 Cl 6 Degassing and refining, smelting in a crucible resistance furnace to form an alloy ingot with a composition of Al-4.5%Mg-0.7%Mn-0.2%Er-0.1%Zr. The ingot is homogenized and annealed at 480°C for 24 hours, then cut and milled, diathermy (470°C for 1 hour) and hot rolled (78% of the total reduction), cooled to room temperature and then intermediate annealed (470°C for 1 hour) And cold rolled (67% total reduction) to produce a 1.5mm thick plate, and its mechanical properties were measured. The results are shown in Table 1 for alloy C.

example 2

[0013] Example 2: adopt Al-6%Er master alloy, 2.3% Al-4.52%Zr master alloy, 6.98% Al-10.02%Mn master alloy and 4.8% pure magnesium accounting for 6.67% of the total weight of the alloy, and the rest are Raw material of pure aluminum, ingot metallurgy, covered with covering agent, C 6 Cl 6 Degassing and refining, smelting in a crucible resistance furnace to form an alloy ingot with a composition of Al-4.5%Mg-0.7%Mn-0.4%Er-0.1%Zr. The ingot was homogenized and annealed at 480°C for 24 hours, then cut and face milled, diathermy (470°C for 1 hour) and hot rolled (78% of the total reduction), cooled to room temperature and then intermediate annealed (470°C for 1 hour) And cold rolled (67% total reduction) to produce a 1.5mm thick plate, and its mechanical properties were measured. The results are shown in Table 1 for alloy D.

example 3

[0014] Example 3: adopt Al-6%Er master alloy, 2.3% Al-4.52%Zr master alloy, 6.98% Al-10.02%Mn master alloy and 4.8% pure magnesium accounting for 10% of the total weight of the alloy, and the rest are Raw material of pure aluminum, ingot metallurgy, covered with covering agent, C 6 Cl 6 Degassing and refining, smelting in a crucible resistance furnace to form an alloy ingot with a composition of Al-4.5%Mg-0.7%Mn-0.6%Er-0.1%Zr. The ingot was homogenized and annealed at 480°C for 24 hours, then cut and face milled, diathermy (470°C for 1 hour) and hot rolled (78% of the total reduction), cooled to room temperature and then intermediate annealed (470°C for 1 hour) And cold rolled (67% total reduction) to produce a 1.5mm thick plate, and its mechanical properties were measured. The results are shown in Table 1 for E alloy.

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Abstract

The AL-Mg-Mn alloy complex intensified by Er, Zr relates to the technical domain of the metal alloy, concretely, it belongs to the aluminum alloy with the microalloy process. The invention aims to solve the problem of seeking the element used in the aluminum microalloy process, the element can intensify the aluminum alloy group to improve the ability of the aluminum alloy. The AL-Mg-Mn alloy complex intensified by Er, Zr characterized in that the lanthanide Er accounting for the 0.01%-0.6% of the gross weight of the final outcome and the transitional element Zr accounting for the 0.01-0.2% of the gross weight of the final outcome are added into the A1-4.5% Mg-0.7% alloy. Because of adding the minim lanthanide Er and the transitional element Zr, the machine capability of the A1-4.5% Mg-0.7% aluminum during the cold rolling state and the anneal of the room temperature can be improved highly, the resisting draw intension and the bending intension of the alloy can be improved 15-17%, the extending rate keeps even. At the same time, the A1-4.5%Mg-0.7%Mn alloy after the process of the microalloy has the higher high temperature capability, it can be used for the resisting hot aluminum alloy under the 200 temperature.

Description

technical field [0001] The invention relates to the technical field of metal alloys, in particular to an aluminum alloy material through microalloying. Background technique [0002] The results of the literature survey show that rare earths have the functions of removing impurities, degassing, and modifying properties in aluminum alloys. Foreign research on rare earth aluminum alloys focuses on aluminum alloys containing Sc. The domestic application of rare earths in aluminum alloys started in the late 1970s, in the metamorphic effect of rare earths in casting Al-Si alloys, the application of rare earths in electrical aluminum alloys, and the application of rare earths in architectural aluminum profiles etc. have achieved good results, and some research has been done on the role of rare earth Ce and Y in Al-Si alloys. Most of the above applications and research use mixed rare earths. Although some research has been done on the role of single rare earths Y, Sc, Er, etc. Es...

Claims

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Application Information

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IPC IPC(8): C22C21/06
Inventor 聂祚仁邢泽炳苏学宽季小兰邹景霞左铁镛
Owner BEIJING UNIV OF TECH
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