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Method for preparing ODS (Oxide Dispersion Strengthened) 6063 composite material

A composite material and dispersion strengthening technology, which is applied in the field of aluminum matrix composite material preparation, to achieve the effect of low production cost, high density and uniform composition

Inactive Publication Date: 2018-11-30
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there is no research on the in situ synthesis of Al 2 o 3 Report on Reinforced 6063 Composite Material

Method used

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  • Method for preparing ODS (Oxide Dispersion Strengthened) 6063 composite material

Examples

Experimental program
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Effect test

Embodiment example 1

[0017] The 6063 aluminum alloy powder was high-energy ball milled for 10 hours, and pressed at 175 MPa for 3 minutes by cold isostatic pressing, and the pressed sample was sintered in a nitrogen atmosphere at a sintering temperature of 600°C and a sintering time of 115 minutes. The ODS 6063 aluminum matrix composite plate was prepared by hot extrusion. The heat treatment process conditions are solution temperature of 525°C, solution time of 5.5 hours, aging temperature of 170°C, and aging time of 11 hours.

Embodiment example 2

[0019] The 6063 aluminum alloy powder was high-energy ball milled for 10 hours, and pressed at 180 MPa for 2 minutes by cold isostatic pressing, and the pressed sample was sintered in a nitrogen environment at a sintering temperature of 590°C and a sintering time of 120 minutes. The ODS 6063 aluminum matrix composite plate was prepared by hot extrusion. The heat treatment process conditions are solution temperature of 530°C, solution time of 5 hours, aging temperature of 175°C, and aging time of 10 hours.

Embodiment example 3

[0021] The 6063 aluminum alloy powder was high-energy ball milled for 10 hours, and pressed at 180 MPa for 2 minutes by cold isostatic pressing, and the pressed sample was sintered in a nitrogen environment at a sintering temperature of 595°C and a sintering time of 118 minutes. The ODS 6063 aluminum matrix composite plate was prepared by hot extrusion. The heat treatment process conditions are solution temperature of 535°C, solution time of 4.5 hours, aging temperature of 170°C, and aging time of 10.5 hours.

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Abstract

The invention belongs to the field of aluminum-based composite material preparation, and relates to a method for utilizing an ODS (Oxide Dispersion Strengthened) aluminum-based composite material. Themethod is characterized in that an ODS aluminum-based composite material plate is prepared through the steps of ball milling of powder, pressing, sintering, extrusion molding, thermal treatment and the like, wherein the conditions of a thermal treatment technology are as follows: the solid solution temperature is 525 to 535 DEG C, the solid solution time is 4.5 to 5.5 hours, the aging temperatureis 170 to 175 DEG C, and the aging time is 10 to 11 hours. According to the method disclosed by the invention, in-situ growth of Al2O3 nanoparticles in 6063 composite material is realized by adoptinga powder metallurgy method, and the Al2O3 nanoparticles are uniformly dispersed in a matrix. The prepared ODS aluminum-based composite material is uniform in components and high in density; the production cost is low, and large-scale production is easy.

Description

technical field [0001] The invention belongs to the field of preparation of aluminum-based composite materials, and in particular relates to a method for strengthening aluminum-based composite materials by using oxide dispersion. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal material in the industry. As a medium-strength alloy that can be strengthened by heat treatment, 6063 aluminum alloy is widely used in automobile manufacturing, building profiles, irrigation pipes and other fields. With the rapid development of society, aluminum alloys manufactured by traditional methods are increasingly unable to meet people's needs for manufacturing industrial products. Concerns that dispersion strengthened (DS) aluminum matrix composites can greatly improve the properties of aluminum alloys [J. Suthar, K.M. Patel, Processing issues, machining, and applications of aluminum metal matrix composites, Materials and Manufacturing Processes 33 (2018) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C32/00C22C21/00C22C1/05B22F9/04B22F3/20
CPCC22C32/0036B22F3/20B22F9/04B22F2003/208B22F2009/043B22F2998/10C22C1/05C22C21/00B22F3/04B22F3/1007B22F2003/248
Inventor 常永勤李明洋陶锡晨郭远航陈存广郭志猛
Owner UNIV OF SCI & TECH BEIJING