Enhanced Mechanical Properties and Corrosion Resistance of Novel Al-Zn-Mg-Er-Zr Alloy by Two-Stage Aging Treatment

被引：0
作者：
Chen Jiongshen [1 ]
Rong Li [1 ]
Wei Wu [1 ]
Huang Hui [1 ]
Gao Kunyuan [1 ]
Wu Xiaolan [1 ]
Wen Shengping [1 ]
Qi Peng [1 ]
Nie Zuoren [1 ]
机构：
[1] Beijing Univ Technol, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2023年 / 52卷 / 07期
关键词：
Al-Zn-Mg-Er-Zr; two-stage aging; microstructure; mechanical properties; exfoliation corrosion; MICROSTRUCTURAL EVOLUTION; HEAT-TREATMENT; CU ALLOY; PRECIPITATION; STRENGTH; BEHAVIOR; ADDITIONS; RRA; SC;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The mechanical properties and corrosion resistance of a novel Al-Zn-Mg-Er- Zr alloy under different aging processes were systematically studied. The microstructure of the alloy was analyzed by EBSD, XRD, SEM, TEM to understand the relationship between the best comprehensive properties of the alloy and its microstructure mode. It was found that the excellent two- stage aging process was 90 degrees C/12 h+145 degrees C/18 h, the corresponding yield strength and elongation were 388 MPa and 14.0%, the susceptibility to exfoliation corrosion was PB. At the same time, the main strengthening phases (GP zone and eta' phase) of the alloy numerously precipitated in the matrix, the eta phase at the grain boundary was discontinuous.
引用
收藏
页码：2453 / 2460
页数：8
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