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

A kind of al-mg-zn-li alloy and its plate preparation method

An alloy, aluminum alloy technology, applied in the field of aviation materials, can solve problems such as troublesome and difficult to implement

Inactive Publication Date: 2017-01-04
CENT SOUTH UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But turning to rolling is relatively troublesome to implement, and it is even more difficult to implement in industrial production

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of al-mg-zn-li alloy and its plate preparation method
  • A kind of al-mg-zn-li alloy and its plate preparation method
  • A kind of al-mg-zn-li alloy and its plate preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with specific examples.

[0024] In each embodiment, the weight percentage of alloy chemical composition is controlled as follows: Mg=3.0-8.0%; Zn=2.1-5.0%; Li<2.0%; Cu<2.0%; Mn<1.2%; Fe<0.3%; Si<0.3% ; Add one or more elements of Cr, Ti, Zr, Sc, Hf, La, Ce, Pr, Nd, Ag, the addition of a single element is less than 0.5%; there are inevitably other impurity elements, other impurities A single element does not exceed 0.05%, the total amount of impurities does not exceed 0.2%, and the balance is Al. In order to reflect the superiority of the material performance, the chemical composition of the alloy in the embodiment is further controlled within the preferred range.

[0025] The material preparation process is: melting and casting—homogenization—sawing and milling—heating—rolling—solid solution—quenching—aging. In order to further illustrate the superiority of the present invention, comparative examp...

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

PropertyMeasurementUnit
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses Al-Mg-Zn-Li alloy and a preparation method for an alloy plate. The alloy comprises the following chemical components in percentage by weight: 3.0-8.0% of Mg, 2.1-5.0% of Zn, less than 2.0% of Li, less than 2.0% of Cu, less than 1.2% of Mn, less than 0.3% of Fe and less than 0.3% of Si; one or more of Cr, Ti, Zr, Sc, Hf, La, Ce, Pr, Nd and Ag are added, and the additive amount of a single element is less than 0.5%; other impurity elements also exist inevitably, the content of a single element in the other impurity elements does not exceed 0.05%, the total impurity content does not exceed 0.2%, and the balance is Al. A preparation process for the alloy comprises steps of fusion casting, homogenization, sawing-milling, heating, rolling, solid solution treatment, quenching, ageing and the like in sequence, wherein a three-stage homogenization system is adopted in the homogenization step, and the prepared plate is relatively high in strength and relatively low in density.

Description

technical field [0001] The invention specifically relates to an Al-Mg-Zn-Li alloy and a method for preparing the alloy sheet thereof. The alloy material can be used for aviation materials, but is not limited to aviation materials. Background technique [0002] The density of pure Al is 2.70g / cm 3 , the density of pure Mg is 1.74g / cm 3 , the density of pure Li is 0.53g / cm 3 , Adding Mg or Li elements to aluminum alloys is currently a feasible method to reduce the density of aluminum alloys, and the density reduction effect of adding Li is better. Taking pure aluminum as an example, for every 1% increase of Mg in pure aluminum, the density can be reduced by 0.55%, and for every 1% increase of Li, the density can be reduced by 3.9%. The development of Al-Mg-X, Al-Li-X, Al-Mg-Li-X (X refers to other elements) alloys is the main development direction of low-density aluminum alloys at present. [0003] If the density of aluminum alloy is reduced by adding Mg element, if the ad...

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 Patents(China)
IPC IPC(8): C22C21/08C22C21/06C22C21/10C22F1/047C22F1/053
CPCC22C21/06C22C21/08C22C21/10C22F1/047C22F1/053
Inventor 邓运来戴青松张佳琪欧世声付平王冯权刘胜胆张劲唐建国叶凌英张新明
Owner CENT SOUTH UNIV