Method for preparing ultrathin aluminum-magnesium layered composite material through low-temperature rolling

A layered composite material, low-temperature rolling technology, applied in metal rolling, temperature control, metal rolling, etc., can solve the problems of low strength and low density, achieve high interface quality, low equipment requirements, and flexible application Effect
CN112828037AActive Publication Date: 2021-05-25CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2021-05-25

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Abstract

The invention relates to a preparation method of an ultrathin aluminum-magnesium layered composite material, and belongs to the technical field of aluminum-magnesium composite materials. The preparation method comprises processes of aluminum alloy powder and magnesium alloy powder pressing and forming, presintering, composite rolling and post-treatment. When the aluminum alloy powder is presintered after being pressed and formed, a temperature is controlled to be 500-630 DEG C, and time is larger than or equal to 60 minutes; when the magnesium alloy powder is presintered after being pressed and formed, a temperature is controlled to be 500-630 DEG C, and time is more than or equal to 60 minutes; during composite rolling, a temperature is controlled to be 270-450 DEG C, preferably 275-350 DEG C, and during composite rolling, single-pass rolling reduction is 30-80%; and when the composite rolling temperature is lower than 310 DEG C, the single-pass rolling reduction is 40-80%. According to the preparation method of the ultrathin aluminum-magnesium layered composite material, the aluminum-magnesium layered composite material with excellent performance is obtained under a low-temperature condition (lower than 300 DEG C) for the first time. Meanwhile, the product yield is greatly improved under a low-temperature hot rolling condition.
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Description

technical field

[0001] The invention relates to a preparation method of an ultra-thin aluminum-magnesium layered composite material, belonging to the technical field of aluminum-magnesium composite materials. Background technique

[0002] A single metal material is limited by its own characteristics and it is difficult to meet special performance requirements, while composite materials can realize the complementary properties of component materials, so that the overall material presents better physical, chemical and mechanical properties, which greatly expands the scope of materials. field of application. As common lightweight metal materials, aluminum alloy and magnesium alloy have overlapping application fields. Therefore, it is of great significance to carry out research on aluminum-magnesium composite materials and integrate the excellent properties of the two materials for the application fields of aluminum and magnesium materials. Aluminum-magnesium composite material...

Claims

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