Simultaneously enhancing the strength and ductility of particulate-reinforced aluminum matrix composite by aging treatment

被引:2
作者
Zhang, Xuezheng [1 ,2 ]
Chen, Tijun [1 ]
机构
[1] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
[2] Dongguan Eontec Co Ltd, Dongguan 523662, Peoples R China
关键词
Aluminum; Composite; Ductility; Powder processing; Strength; TENSILE PROPERTIES; MECHANICAL-PROPERTIES; BEHAVIOR; ALLOY; MICROSTRUCTURE; SYNERGY;
D O I
10.1557/s43578-021-00389-x
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this work, powder thixoforming technique was utilized to prepare 10 vol% SiC particulate-reinforced 6061 alloy matrix (SiCp/6061Al) composite and artificial aging treatment was conducted to enhance mechanical properties. The results reveal that the aging process of SiCp/6061Al composite at 175 degrees C can be divided into three stages: under-aged (0.5-10 h) stage, peak-aged (10 h) stage and over-aged (10-48 h) stage, which were dominated by Guinier-Preston zone, beta '' and beta phase, respectively. Correspondingly, the tensile strengths of this composite exhibited a trend of first rising (0.5-10 h) and then decreasing (10-48 h), while the elongation continuously decreased all the time. Comparing with the as-fabricated composite, optimal aging treatment for 10 h led to maximum ultimate tensile strength of 309 MPa, yield strength of 240 MPa and a moderate elongation of 3.7%, representing remarkable increments of 34.3%, 87.5% and 42.3%, respectively. The aging behaviors of SiCp/6061Al composite and corresponding strengthening as well as toughening mechanisms were discussed. Graphic abstract
引用
收藏
页码:3445 / 3459
页数:15
相关论文
共 59 条
[51]   Hierarchically structured diamond composite with exceptional toughness [J].
Yue, Yonghai ;
Gao, Yufei ;
Hu, Wentao ;
Xu, Bo ;
Wang, Jing ;
Zhang, Xuejiao ;
Zhang, Qi ;
Wang, Yanbin ;
Ge, Binghui ;
Yang, Zhenyu ;
Li, Zihe ;
Ying, Pan ;
Liu, Xiaoxiao ;
Yu, Dongli ;
Wei, Bin ;
Wang, Zhongchang ;
Zhou, Xiang-Feng ;
Guo, Lin ;
Tian, Yongjun .
NATURE, 2020, 582 (7812) :370-+
[52]  
Zhang X., 2019, EFFECTS HEAT TREATME
[53]   Solution treatment: A route towards enhancing tensile ductility of SiCp/6061A1 composite via powder thixoforming and comparison of micromechanical strength modeling [J].
Zhang, X. Z. ;
Chen, T. J. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 696 :466-477
[54]   Effects of solution treatment on tensile properties and strengthening mechanisms of SiCp/6061Al composites fabricated by powder thixoforming [J].
Zhang, X. Z. ;
Chen, T. J. ;
Qin, Y. H. .
MATERIALS & DESIGN, 2016, 99 :182-192
[55]   Overcoming the strength-ductility trade-off of an aluminum matrix composite by novel core-shell structured reinforcing particulates [J].
Zhang, Xuezheng ;
Chen, Tijun ;
Ma, Siming ;
Qin, He ;
Ma, Jinyuan .
COMPOSITES PART B-ENGINEERING, 2021, 206
[56]   Bimodal microstructure dispersed with nanosized precipitates makes strong aluminum alloy with large ductility [J].
Zhang, Xuezheng ;
Chen, Tijun .
MATERIALS & DESIGN, 2020, 191
[57]   Toughening mechanisms of solution-treated SiCp/6061 aluminum matrix composites fabricated via powder thixoforming [J].
Zhang, Xuezheng ;
Chen, Tijun .
JOURNAL OF MATERIALS RESEARCH, 2018, 33 (18) :2728-2740
[58]   Precipitation behavior and strengthening-toughening mechanism of hot rolled sheet of Ti65 titanium alloy during aging process [J].
Zhang, Zhixin ;
Fan, Jiangkun ;
Wu, Zhihong ;
Zhao, Ding ;
Gao, Qi ;
Wang, Qinbo ;
Chen, Zhiyong ;
Tang, Bin ;
Kou, Hongchao ;
Li, Jinshan .
JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 831
[59]   Aging behavior and precipitation kinetics of SiCp/6061Al composites [J].
Zhao M. ;
Wu G. ;
Jiang L. .
Journal of Materials Science, 2004, 39 (5) :1759-1763