Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Recrystallization resistant anti-corrosion aluminum alloy

An aluminum alloy and recrystallization technology, applied in the field of metal alloys, can solve the problems of high price and difficult industrial aluminum alloy production, and achieve the effect of low price and improved strength

Inactive Publication Date: 2008-10-29
CENT SOUTH UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high price of Sc, the current market price is about 40,000 RMB / kg, so it is difficult to be practically used in the production of industrial aluminum alloys.

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
  • Recrystallization resistant anti-corrosion aluminum alloy
  • Recrystallization resistant anti-corrosion aluminum alloy
  • Recrystallization resistant anti-corrosion aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Alloy B-1 in the table was prepared. Add high-purity aluminum (purity 99.99%) into graphite clay crucible and melt it in a resistance crucible furnace at a melting temperature of 780°C. After melting high-purity aluminum, add Al-Cu, Al-Cr, Al-Zr, Al- Ce master alloy, lowered to 760°C, added industrial pure Zn (purity 99.9%), melted and stirred well, then added industrial pure Mg (purity 99.9%), after removing surface slag, added 0.2% ~ 0.4% of six Ethyl chloride (C 2 Cl 6) Refining agent deslagging and degassing, let it stand for 10 to 15 minutes, pour it into the iron mold, and demould after cooling.

Embodiment 2

[0038] Example 2: Prepare the alloy B-2 in the table. Add high-purity aluminum (purity 99.99%) into graphite clay crucible and melt it in a resistance crucible furnace at a melting temperature of 780°C. After melting high-purity aluminum, add Al-Cu, Al-Cr, Al-Zr, Al- Ce master alloy, lowered to 760°C, added industrial pure Zn (purity 99.9%), melted and stirred well, then added industrial pure Mg (purity 99.9%), after removing surface slag, added 0.2% ~ 0.4% of six Ethyl chloride (C 2 Cl 6 ) Refining agent deslagging and degassing, let it stand for 10 to 15 minutes, pour it into the iron mold, and demould after cooling.

Embodiment 3

[0039] Example 3: Alloy B-3 in the table was prepared. Add high-purity aluminum (purity 99.99%) into graphite clay crucible and melt it in a resistance crucible furnace at a melting temperature of 780°C. After melting high-purity aluminum, add Al-Cu, Al-Cr, Al-Zr, Al- Ce master alloy, lowered to 760°C, added industrial pure Zn (purity 99.9%), melted and stirred well, then added industrial pure Mg (purity 99.9%), after removing surface slag, added 0.2% ~ 0.4% of six Ethyl chloride (C 2 Cl 6 ) Refining agent deslagging and degassing, let it stand for 10 to 15 minutes, pour it into the iron mold, and demould after cooling.

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 discloses a recrystallization-resistance birmabrite, which comprises main alloying elements Al-Mg-(Zn-Cu), and also comprises Zr-Cr-Ce accounting for 0.1 to 1.2 percent of the mass percent of the birmabrite. The Zr, the Cr and the Ce are combined-added in the Al-Mg-(Zn-Cu) alloy, so that a multiple aluminide dispersed part is formed, the recrystallization of the Al-Mg-(Zn-Cu) alloy is effectively inhibited, the deformation recovery structure is kept, and the intensity, the fracture toughness property and the stress resistance corrosive nature of the alloy are increased; in addition, the price of the Zr, the Cr and the Ce is relatively cheap, and the recrystallization-resistance birmabrite is applied to the industrialized production.

Description

technical field [0001] The invention belongs to the field of metal alloys, in particular to anti-recrystallization and corrosion-resistant aluminum alloys. Background technique [0002] It is one of the ways to simultaneously improve the strength and corrosion resistance of aluminum alloys by forming micro-dispersed phases through multi-element microalloying, effectively inhibiting recrystallization and grain growth, and maintaining the deformation recovery structure. In the early stage, the non-coherent aluminide dispersed phase was formed by adding trace amounts of Cr and Mn. Later changed to add Zr to form metastable Ll 2 Type Al 3 Zr dispersed phase, which improves the resistance to recrystallization and improves the stress corrosion resistance, but metastable Ll 2 Type Al 3 Zr transforms into incoherent stable DO during long-term homogenization and solution treatment at high temperature 23 Type Al 3 Zr dispersed phase, therefore, the effect of inhibiting recrystal...

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): C22C21/00
Inventor 陈康华方华婵张茁祝昌军黄兰萍
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com