Wear resistance of graphene nano-platelets (GNPs) reinforced AlSi10Mg matrix composite prepared by SLM

被引:112
作者
Wu, Liyun [1 ]
Zhao, Zhanyong [1 ]
Bai, Peikang [1 ,2 ]
Zhao, Wenjie [1 ]
Li, Yuxin [1 ]
Liang, Minjie [1 ]
Liao, Haihong [1 ]
Huo, Pengcheng [1 ]
Li, Jing [1 ]
机构
[1] North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Shanxi, Peoples R China
[2] Shanxi Inst Technol, Yangquan 045000, Peoples R China
基金
中国国家自然科学基金;
关键词
Selective laser melting (SLM); Aluminum matrix composite (AMC); Graphene; Microstructure; Wear resistance; TRIBOLOGICAL PROPERTIES; MECHANICAL-PROPERTIES; CARBON NANOTUBES; NANOCOMPOSITES; BEHAVIOR; MICROSTRUCTURE; ALLOY; INTERFACE; FRICTION; HARDNESS;
D O I
10.1016/j.apsusc.2019.144156
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In order to improve the wear resistance of aluminum alloys and expand its applications, the microstructure and tribological properties of nano-graphene reinforced aluminum matrix composites-which were fabricated by selective laser melting (SLM)-were investigated. Experiments were conducted to investigate the effect of slide speeds (0.3-0.9 m/s) and normal loads (10N-30N), which demonstrated the dislocation strengthening and load strengthening resulting from the homogeneous dispersion of graphene nano-platelets (GNPs) enhance the wear resistance of GNPs/AlSi10Mg composites. With the increase of slide speed, the wear rate of composites decreases and the wear regime changes from abrasive wear to delamination wear, which is because the formation of a relatively stable mechanically mixed layer (MML) reduces the contact area between the counterbody material and the wear surface, and the nano-graphene bridges between the subsurface cracks improve the tribological performance. Meanwhile, with the increase of normal load, the predominant wear regime of the reinforced composite is the combination of delamination wear and oxidize wear. And the coefficient of friction (COF) decreases as the slide speed increases, which is because the self-lubricating property of graphene nano-platelets makes it easy to form interlayer sliding and reduce friction effectively.
引用
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页数:11
相关论文
共 47 条
[1]   DIFFERENT BEHAVIOUR OF HEXAGONAL + CUBIC METALS IN THEIR FRICTION WEAR + WORK HARDENING DURIING ABRASION [J].
ALISON, PJ ;
WILMAN, H .
BRITISH JOURNAL OF APPLIED PHYSICS, 1964, 15 (03) :281-&
[2]   Dry Sliding Wear Behavior and a Proposed Criterion for Mild to Severe Wear Transition of Mg-3Al-0.4Si-0.1Zn Alloy [J].
An, J. ;
Sun, W. ;
Niu, X. D. .
TRIBOLOGY LETTERS, 2017, 65 (03)
[3]  
Barada P.S., 2018, MAT TODAY P, V5, P20549
[4]   Aligning graphene in bulk copper: Nacre-inspired nanolaminated architecture coupled with in-situ processing for enhanced mechanical properties and high electrical conductivity [J].
Cao, Mu ;
Xiong, Ding-Bang ;
Tan, Zhanqiu ;
Ji, Gang ;
Amin-Ahmadi, Behnam ;
Guo, Qiang ;
Fan, Genlian ;
Guo, Cuiping ;
Li, Zhiqiang ;
Zhang, Di .
CARBON, 2017, 117 :65-74
[5]   Sliding wear map for the magnesium alloy Mg-9Al-0.9 Zn (AZ91) [J].
Chen, H ;
Alpas, AT .
WEAR, 2000, 246 (1-2) :106-116
[6]   Preparation of semi-solid ZL101 aluminum alloy slurry by serpentine channel [J].
Cheng, Shu-jian ;
Zhao, Yu-hong ;
Hou, Hua ;
Jin, Yu-chun ;
Guo, Xiao-xiao .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2016, 26 (07) :1820-1825
[7]   Interface and mechanical/thermal properties of graphene/copper composite with Mo2C nanoparticles grown on graphene [J].
Chu, Ke ;
Wang, Fan ;
Li, Yu-biao ;
Wang, Xiao-hu ;
Huang, Da-jian ;
Geng, Zhong-rong .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2018, 109 :267-279
[8]   Interface design of graphene/copper composites by matrix alloying with titanium [J].
Chu, Ke ;
Wang, Fan ;
Wang, Xiao-hu ;
Li, Yu-biao ;
Geng, Zhong-rong ;
Huang, Da-jian ;
Zhang, Hu .
MATERIALS & DESIGN, 2018, 144 :290-303
[9]  
Chue CH, 2001, WEAR, V249, P109, DOI 10.1016/S0043-1648(01)00525-7
[10]   Melt spreading behavior, microstructure evolution and wear resistance of selective laser melting additive manufactured AlN/AlSi10Mg nanocomposite [J].
Dai, Donghua ;
Gu, Dongdong ;
Xia, Mujian ;
Ma, Chenglong ;
Chen, Hongyu ;
Zhao, Tong ;
Hong, Chen ;
Gasser, Andres ;
Poprawe, Reinhart .
SURFACE & COATINGS TECHNOLOGY, 2018, 349 :279-288