Heat treatment method for improving high-temperature endurance performance of deformed aluminum-copper-magnesium-silver alloy

A heat treatment method and aluminum-copper-magnesium technology, applied in the field of metal material processing, can solve problems such as difficulty meeting performance requirements, failing to reflect high-temperature mechanical properties, failing to produce ideal effects, etc., to improve long-term high-temperature durability and excellent long-term performance High temperature durability, the effect of excellent high temperature durability
CN112662969AInactive Publication Date: 2021-04-16CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2021-04-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of metal material treatment, and particularly relates to a heat treatment method for improving the high-temperature endurance performance of a deformed aluminum-copper-magnesium-silver alloy. The heat treatment method comprises the steps that S1, the aluminum-copper-magnesium-silver alloy is subjected to solid solution and quenching treatment, and then artificial aging treatment is conducted for 0-1h; and S2, the aluminum-copper-magnesium-silver alloy material treated in the step S1 is subjected to tensile deformation treatment and then subjected to artificial aging treatment for 1-8h, and the deformed aluminum-copper-magnesium-silver alloy with excellent high-temperature endurance performance is obtained. According to the method, the stable formation of the heat-resistant omega phase or the precursor thereof is ensured through short-time artificial aging in advance, so that the heat-resistant omega phase or the precursor thereof can still exist stably after deformation treatment, the mass formation of the heat-resistant omega phase in the subsequent artificial aging process is promoted, and the excellent long-time high-temperature endurance property of the shape-variable alloy is ensured.
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Description

technical field

[0001] The invention belongs to the technical field of metal material treatment, and in particular relates to a heat treatment method for improving the high-temperature durability performance of a deformed aluminum-copper-magnesium-silver alloy. Background technique

[0002] With the continuous development of the aerospace industry, the demand for high-performance heat-resistant aluminum alloy materials is increasing day by day. Under the action of heat and load, the structural parts of high-speed aircraft often require no destructive fracture after hundreds or even thousands of hours of service. However, traditional heat-resistant aluminum alloys, such as 2618 alloy, are difficult to meet the performance requirements of long-term service in high-temperature environments.

[0003] Aluminum-copper-magnesium-silver alloy is a new type of heat-resistant aluminum alloy material. Its high-temperature mechanical properties are significantly better than the existing...

Claims

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