Effects of Sc addition and rolling on the microstructure and mechanical properties of Al-35Zn alloys

被引：18

作者：

Liu, C. Y. ^{[1
]}

Zhang, X. ^{[2
]}

Xia, C. Q. ^{[2
]}

Feng, Z. H. ^{[2
]}

Liu, S. G. ^{[2
]}

Zhang, Z. G. ^{[2
]}

Ma, M. Z. ^{[2
]}

Liu, R. P. ^{[2
]}

机构：

[1] Guilin Univ Technol, Minist Educ, Key Lab New Proc Technol Nonferrous Met & Mat, Guilin 541004, Peoples R China

[2] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 703卷

关键词：

Microstructure; Mechanical properties; Al alloy; Rolling; AL-MG ALLOYS; ZR MICROALLOYING ADDITIONS; SEVERE PLASTIC-DEFORMATION; HIGH-PRESSURE TORSION; ZN ALLOY; RECRYSTALLIZATION; PRECIPITATION;

D O I：

10.1016/j.msea.2017.07.042

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Sc addition and rolling were performed to optimize the mechanical properties of Al alloys with high Zn concentrations. The addition of 0.5 Sc reduced the grain size of the Al-35Zn alloys during solidification, heat treatment, and rolling. Nanosized, rod-shaped Zn particles dynamically precipitated from the Al lattice during hot rolling and consequently coarsened during further cold rolling. Following 50% hot rolling and 80% cold rolling, Al-35Zn-0.5Sc alloy demonstrated the highest strength, i.e., an ultimate tensile strength (UTS) of 482 MPa. Moreover, following 90% hot rolling, Al-35Zn-0.55c alloy demonstrated balanced mechanical properties including high strength and reasonable ductility (UTS and tensile elongation of 430 MPa and 10%, respectively). This work provided an effective strategy to fabricate Al alloys with high Zn concentrations and excellent mechanical properties.

引用

收藏

页码：45 / 53

页数：9

相关论文

共 20 条

[1] Softening by severe plastic deformation and hardening by annealing of aluminum-zinc alloy: Significance of elemental and spinodal decompositions [J].

Alhamidi, Ali ;

Edalati, Kaveh ;

Horita, Zenji ;

Hirosawa, Shoichi ;

Matsuda, Kenji ;

Terada, Daisuke .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 610 :17-27

[2] Extraordinary high-strain rate superplasticity of severely deformed Al-Mg-Sc-Zr alloy [J].

Avtokratova, E. ;

Sitdikov, O. ;

Markushev, M. ;

Mulyukov, R. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 538 :386-390

[3] A microstructure-based model for describing the material properties of Al-Zn alloys during high pressure torsion [J].

Borodachenkova, M. ;

Barlat, F. ;

Wen, W. ;

Bastos, A. ;

Gracio, J. J. .

INTERNATIONAL JOURNAL OF PLASTICITY, 2015, 68 :150-163

[4] Effects of Sc and Zr microalloying additions on the recrystallization texture and mechanism of Al-Zn-Mg alloys [J].

Deng, Ying ;

Xu, Guofu ;

Yin, Zhimin ;

Lei, Xuefeng ;

Huang, Jiwu .

JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 580 :412-426

[5] Effects of Sc and Zr microalloying additions on the microstructure and mechanical properties of new Al-Zn-Mg alloys [J].

Deng, Ying ;

Yin, Zhimin ;

Zhao, Kai ;

Duan, Jiaqi ;

He, Zhenbo .

JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 530 :71-80

[6] Recrystallization, precipitation, and resultant mechanical properties of rolled Al-Zn alloy after aging [J].

Liu, C. Y. ;

Qu, B. ;

Ma, Z. Y. ;

Ma, M. Z. ;

Liu, R. P. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 657 :284-290

[7] Evaluation of microstructure and mechanical properties of Al-Zn alloy during rolling [J].

Liu, C. Y. ;

Ma, M. Z. ;

Liu, R. P. ;

Luo, K. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 654 :436-441

[8] Dynamic precipitation of Al-Zn alloy during rolling and accumulative roll bonding [J].

Liu, C. Y. ;

Yu, L. ;

Ma, M. Z. ;

Liu, R. P. ;

Ma, Z. Y. .

PHILOSOPHICAL MAGAZINE LETTERS, 2015, 95 (11) :539-546

[9] Static and Dynamic Precipitation Behavior of the Al-20wt.% Zn Alloy [J].

Liu, Chong-Yu ;

Jiang, Hong-Jie ;

Wang, Chun-Xia ;

Qi, Hai-Quan ;

Li, Yi-Bing ;

Ma, Ming-Zhen ;

Liu, Ri-Ping .

CHINESE PHYSICS LETTERS, 2016, 33 (05)

[10] 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