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A preparation method of low-stacking-fault-energy copper alloy sheet and strip

A technology of copper alloy plates and strips, applied in metal processing equipment, etc., can solve problems such as unsatisfactory performance requirements, and achieve the effect of increasing the probability of twin crystal formation

Active Publication Date: 2022-04-01
ZHONGBEI UNIV
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Problems solved by technology

In recent years, with the rapid development of my country's economy, especially the rapid development of rail transit and aerospace, the industry's performance requirements for aluminum bronze have also been continuously improved, requiring alloys with higher strength (tensile strength > 600MPa) hardness ( Hardness > 200HV) and wear resistance, the conventional heat treatment process has been unable to meet the growing performance requirements

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  • A preparation method of low-stacking-fault-energy copper alloy sheet and strip
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  • A preparation method of low-stacking-fault-energy copper alloy sheet and strip

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Embodiment Construction

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail in combination with the embodiments and accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. The technical scheme of the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0036] A method for preparing a low-stacking-fault-energy copper alloy plate and strip, comprising the following steps:

[0037] 1) Ingredients: According to the mass ratio Cu:Al:Ni=89.43:7.51:3.06, weigh cathode pure copper, industrial pure nickel, and industrial pure aluminum.

[0038] 2) Vacuum induction melting: vacuum induction melting is carried out on the alloy, and the v...

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Abstract

The invention proposes a method for preparing low-stacking-fault-energy copper alloy plates and strips, which belongs to the field of forming and processing thin non-ferrous metal strips; the method includes the steps of preparing raw materials containing Cu, Al and Ni according to a certain mass ratio, and smelting to obtain Melt, hot rolled into forged billet sample, multi-directional forging, recrystallization annealing, rapid deformation, annealing treatment; through the above methods to obtain nano-scale Ni 3 Al and NiAl precipitation strengthening phases and nanoscale twins with a width of 3-5nm strengthen the matrix; through the above-mentioned series of measures, Cu-Al-Ni alloy strip products with high strength and high hardness are finally obtained.

Description

technical field [0001] The invention belongs to the field of forming and processing nonferrous metal thin strips, and relates to a processing method for high-performance copper alloy strips, in particular to a preparation method for low-stacking fault energy copper alloy strips. Background technique [0002] Aluminum bronze alloy has excellent physical and mechanical properties, wear resistance and corrosion resistance, and has been widely used in the manufacture of wear-resistant parts under high-stress working conditions. In recent years, with the rapid development of my country's economy, especially the rapid development of rail transit and aerospace, the industry's performance requirements for aluminum bronze have also been continuously improved, requiring alloys with higher strength (tensile strength > 600MPa) hardness ( Hardness > 200HV) and wear resistance, the conventional heat treatment process has been unable to meet the growing performance requirements. [0...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/01C22F1/08C22F1/02B21J5/02C22C1/02
CPCC22C9/01C22C1/02C22F1/08C22F1/02B21J5/02B21J5/002
Inventor 赵宇宏顾涛侯华武立施宇聪张帅鑫冀宇
Owner ZHONGBEI UNIV
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