Preparation method of bidirectional perpendicular controlled-rolling trace TiC reinforced Al-Cu-Mg alloy plate

A technology of al-cu-mg and alloy plates, which is applied in the field of preparation of Al-Cu-Mg alloy plates reinforced by micro-amount of TiC in two-way vertical controlled rolling, can solve the problems of poor strengthening effect of ceramic particles, difficulty in particle uniform dispersion and interface bonding, etc. Achieve the effect of grain refinement, density improvement, room temperature tensile strength and yield strength improvement
CN109554571AActive Publication Date: 2019-04-02JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JILIN UNIV
Publication Date
2019-04-02

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Abstract

The invention discloses a preparation method of a bidirectional perpendicular controlled-rolling trace TiC reinforced Al-Cu-Mg alloy plate. The preparation method comprises the steps that 1, TiC-Al intermediate alloy is prepared through an endogenous preparation method; 2, Al-Cu-Mg alloy melt is prepared; 3, the TiC-Al intermediate alloy is pre-heated and then pressed into the Al-Cu-Mg alloy melt,so that the addition of TiC ceramic particles is 0.1-0.6%, by weight, of the total amount of Al-Cu-Mg alloy melt; 4, a slag remover is added, after stirring and heat preservation are conducted, the melt surface dross is removed; 5, after the melt is cast into a steel mold, TiC reinforced Al-Cu-Mg alloy ingot is obtained; 6, the TiC reinforced Al-Cu-Mg alloy ingot is cut into a cuboid alloy block,and the surface oxidation film of the alloy block is removed by grinding; and 7, after the alloy block is subjected to homogenization treatment, second rolling, solidification, water quenching and the aging treatment are conducted after first rolling and annealing, and the TiC reinforced Al-Cu-Mg alloy plate is obtained.
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Description

technical field

[0001] The invention belongs to the technical field of aluminum alloys and their processing and preparation, and in particular relates to a method for preparing Al-Cu-Mg alloy sheets reinforced by bidirectional vertical controlled rolling with trace amounts of TiC. Background technique

[0002] As a light metal material, aluminum alloy is widely used in the fields of transportation, heat sink and packaging because of its good processing performance, high specific strength and specific stiffness. The 2014 aluminum alloy is an Al-Cu-Mg alloy, which has high strength and high temperature performance due to its high Cu content, and is an important high-strength aluminum-based material. The traditional external addition method and endogenous method are not easy to achieve uniform dispersion of particles and good interfacial bonding between the reinforcement and the matrix interface, which usually makes the strengthening effect of ceramic particles poor. Contents...

Claims

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