Unlock instant, AI-driven research and patent intelligence for your innovation.

High strength aluminum alloy material

An aluminum alloy material and aluminum alloy technology, applied in the field of aluminum alloy materials, can solve the problems of pitting corrosion and stress corrosion of aluminum alloy materials, and achieve the effects of improving surface quality and surface treatment performance, improving structural fatigue life, and reducing stress concentration.

Inactive Publication Date: 2017-06-13
FOSHAN SHANGHAO DOOR & WINDOW CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on aluminum alloy materials in different environments is mainly limited to the corrosion characteristics of aluminum alloy materials such as pitting corrosion and stress corrosion.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: A high-strength aluminum alloy material, including the following material components in mass percentages:

[0029] Cu: 2.32%;

[0030] Mg: 1.66%;

[0031] Mn: 0.88%;

[0032] Si: 0.4%;

[0033] Rb: 0.41%;

[0034] Zn: 0.33%;

[0035] Ti: 0.22%;

[0036] Cr: 0.12%;

[0037] The balance is Al and a small amount of impurities.

[0038] The potential of aluminum alloy is -0.80~-0.88Vsce.

Embodiment 2

[0039] Embodiment 2: A high-strength aluminum alloy material, including the following material components in mass percentages:

[0040] Cu: 1.55%;

[0041] Mg: 1.36%;

[0042] Mn: 0.78%;

[0043] Si: 0.61%;

[0044] Rb: 0.62%;

[0045] Zn: 0.22%;

[0046] Ti: 0.24%;

[0047] Cr: 0.09%;

[0048] The balance is Al and a small amount of impurities.

[0049] The potential of aluminum alloy is -0.80~-0.88Vsce.

Embodiment 3

[0050] Embodiment 3: A high-strength aluminum alloy material, including the following material components in mass percentages:

[0051] Cu: 2.72%;

[0052] Mg: 1.32%;

[0053] Mn: 0.77%;

[0054] Si: 0.64%;

[0055] Rb: 0.32%;

[0056] Zn: 0.41%;

[0057] Ti: 0.23%;

[0058] Cr: 0.12%;

[0059] The balance is Al and a small amount of impurities.

[0060] The potential of aluminum alloy is -0.80~-0.88Vsce.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an aluminum alloy material, in particular to a high strength aluminum alloy material. The high strength aluminum alloy material comprises, by mass percent, 1%-3% of Cu, 1%-2% of Mg, 0.5%-1% of Mn, 0.2%-0.8% of Si, 0.2%-0.8% of Rb, 0.1%-0.5% of Zn, 0.05%-0.3% of Ti, 0.05%-0.15% of Cr and the balance Al and small-amount impurities. The high strength aluminum alloy material has the beneficial effects that the product surface quality and the surface treatment performance are improved. By means of a high strength aluminum alloy etching pit, stress concentration is reduced, the structure fatigue quality is improved, and therefore the structure fatigue service life is prolonged. Etching pit front edge micro-defects are fewer, damage is less, and the product corrosion service life is prolonged.

Description

technical field [0001] The invention relates to aluminum alloy materials, in particular to a high-strength aluminum alloy material. Background technique [0002] The main corrosion form of high-strength aluminum alloy is pitting corrosion, which causes the fatigue performance of the material to decline. The reason is mainly due to corrosion damage, especially the main features such as cracks, which lead to the generation of fatigue sources and the expansion of fatigue cracks, which directly affect the structural life. and its intensity. At present, the research on aluminum alloy materials in different environments is mainly limited to the corrosion characteristics of aluminum alloy materials such as pitting corrosion and stress corrosion. Therefore, it is of great significance to study the corrosion damage characteristics of high-strength aluminum alloys for the fatigue performance of materials and to avoid corrosion fatigue fractures. Contents of the invention [0003] ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/14C22C21/16C22C21/18C22C21/08
CPCC22C21/14C22C21/08C22C21/16C22C21/18
Inventor 刘正英
Owner FOSHAN SHANGHAO DOOR & WINDOW CO LTD