Influence of cerium on microstructures and mechanical properties of Al-Zn-Mg-Cu alloys

被引：0
作者：
赖建平 [1 ]
姜荣票 [1 ]
刘华山 [1 ]
敦小龙 [1 ]
李艳芬 [1 ]
李晓谦 [2 ]
机构：
[1] School of Materials Science and Engineering,Central South University
[2] School of Mechanical and Electrical Engineering, Central South University
来源：
JournalofCentralSouthUniversity | 2012年 / 19卷 / 04期
关键词：
Al-Zn-Mg-Cu alloy; cerium; microstructure; homogenization; precipitation;
D O I：
暂无
中图分类号：
TG146.21 [];
学科分类号：
080502 ;
摘要：
Effect of element cerium (Ce) on microstructure and mechanical properties of Al-Zn-Mg-Cu alloys has been investigated by transmission electron microscopy (TEM), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and hardness test. The results show that addition of Ce can remarkably refine the as-cast grains and eutectic microstructure. A transformation from Mg(Zn,Cu,Al)2 phase to Al2CuMg phase is observed during homogenization. Furthermore, the Ce addition introduces changes in the precipitation process and consequently in the age-hardening behavior of the alloy. Microstructural measurements reveal that the addition of Ce promotes the precipitation of η' phase, but it also partly retards the precipitation of GP zones. The density of precipitates decreases in a certain degree and rod-like η' precipitates increase when Ce content is from 0.2% to 0.4% (mass fraction).
引用
收藏
页码：869 / 874
页数：6
相关论文
共 50 条
[41]   Influence of second phases on mechanical properties of spray-deposited Al-Zn-Mg-Cu alloy [J].
Jia, Yandong ;
Cao, Fuyang ;
Ning, Zhiliang ;
Guo, Shu ;
Ma, Pan ;
Sun, Jianfei .
MATERIALS & DESIGN, 2012, 40 :536-540
[42]   Low temperature mechanical properties of scandium-modified Al-Zn-Mg-Cu alloys [J].
Senkov, ON ;
Miracle, DB ;
Milman, YV ;
Scott, JM ;
Lotsko, DV ;
Sirko, A .
ALUMINUM ALLOYS 2002: THEIR PHYSICAL AND MECHANICAL PROPERTIES PTS 1-3, 2002, 396-4 :1127-1132
[43]   Modeling the Effects of Cu Variations on the Precipitated Phases and Properties of Al-Zn-Mg-Cu Alloys [J].
Li, Xiaomei ;
Yu, J. J. .
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2013, 22 (10) :2970-2981
[44]   Modelling of the Precipitated Phases and Properties of Al-Zn-Mg-Cu Alloys [J].
Yu, Jingjing ;
Li, Xiaomei .
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION, 2011, 32 (04) :350-360
[45]   Effect of warm deformation on precipitation and mechanical properties of a cryorolled Al-Zn-Mg-Cu sheet [J].
Mei, L. ;
Chen, X. P. ;
Ren, P. ;
Nie, Y. Y. ;
Huang, G. J. ;
Liu, Q. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 771
[46]   Enhancing grain refinement and mechanical properties of Al-Zn-Mg-Cu alloys via TiC particle reinforcement [J].
Peng, Jianfei ;
Yuan, Shuaijie ;
Wang, Wanlin ;
Gan, Peiyuan ;
Ji, Junyu ;
Zeng, Jie .
MATERIALS TODAY COMMUNICATIONS, 2025, 46
[47]   Effect of minor Sc and Zr on recrystallization behavior and mechanical properties of novel Al-Zn-Mg-Cu alloys [J].
Liu, Jing ;
Yao, Pei ;
Zhao, Naiqin ;
Shi, Chunsheng ;
Li, Huijun ;
Li, Xuan ;
Xi, Desheng ;
Yang, Shuo .
JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 657 :717-725
[48]   Spinning-additive hybrid manufacturing of Al-Zn-Mg-Cu alloys: Microstructure evaluation and mechanical properties [J].
Zhou, Siyu ;
Wang, Shuo ;
Tan, Anyu ;
Xie, Han ;
Zhou, Song ;
Liu, Dehua ;
Yang, Guang .
ADDITIVE MANUFACTURING, 2024, 93
[49]   Effect of Zn content and Sc?Zr addition on microstructure and mechanical properties of Al-Zn-Mg-Cu alloys [J].
Jiang, Haitao ;
Xing, Hui ;
Xu, Zihan ;
Yang, Bing ;
Liang, Enquan ;
Zhang, Jiao ;
Sun, Baode .
JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 947
[50]   Effect of Gd on Microstructures and Mechanical Properties of Al-Zn-Mg-Cu-Zr Alloys [J].
Mei Feiqiang ;
Wang Shaohua ;
Fang Canfeng ;
Meng Lingang ;
Jia Fei ;
Hao Hai ;
Zhang Xingguo .
RARE METAL MATERIALS AND ENGINEERING, 2012, 41 :258-261
12345