Title:
HIGH-STRENGTH HIGH-TOUGHNESS WELDABLE IN-SITU NANO-REINFORCED RARE EARTH ALUMINUM ALLOY AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/246889
Kind Code:
A1
Abstract:
The invention relates to an aluminum alloy material, in particular to a high-strength high-toughness weldable in-situ nano-reinforced rare earth aluminum alloy and a preparation method therefor. According to the invention, in-situ nano ceramic particles and rare earth elements are simultaneously introduced into an Al-Zn-Mg alloy, such that crystal grains can be effectively refined, and the strength and toughness of the alloy are significantly improved; and the rare earth nano precipitated phase and the in-situ nanoparticles which are distributed in the crystal/crystal boundary can remarkably increase the recrystallization temperature of the alloy, effectively inhibit the dynamic recovery, reduce the redissolution of alloy elements and improve the weldability of the alloy.
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Inventors:
KAI XIZHOU (CN)
ZHAO YUTAO (CN)
PENG YANJIE (CN)
CHEN GANG (CN)
CHEN RUIKUN (CN)
WU LIN (CN)
TAO RAN (CN)
LIANG XIANGFENG (CN)
ZHAO YUTAO (CN)
PENG YANJIE (CN)
CHEN GANG (CN)
CHEN RUIKUN (CN)
WU LIN (CN)
TAO RAN (CN)
LIANG XIANGFENG (CN)
Application Number:
PCT/CN2021/098105
Publication Date:
December 01, 2022
Filing Date:
June 03, 2021
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
C22C21/10; C22C1/10; C22C32/00; C22F1/053
Foreign References:
| CN107739865A | 2018-02-27 | |||
| CN102021428A | 2011-04-20 | |||
| CN102021422A | 2011-04-20 | |||
| JPH0849033A | 1996-02-20 | |||
| US20090263277A1 | 2009-10-22 |
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
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