Microstructural Characterization of Al/CNTs Nanocomposites after Cold Rolling

被引:2
作者
Carneiro, Iris [1 ,2 ,3 ]
Fernandes, Jose V. [4 ]
Simoes, Sonia [1 ,2 ]
机构
[1] Univ Porto, DEMM Dept Met & Mat Engn, Rua Dr Roberto Frias, P-4200465 Porto, Portugal
[2] INEGI Inst Sci & Innovat Mech & Ind Engn, LAETA, Rua Dr Roberto Frias, P-4200465 Porto, Portugal
[3] Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, England
[4] Univ Coimbra, Ctr Mech Engn Mat & Proc CEMMPRE, ARISE, Dept Mech Engn, Rua Luis Reis Santos, P-3030788 Coimbra, Portugal
关键词
powder metallurgy; deformation behaviour; cold rolling; metal matrix nanocomposites; carbon nanotubes; CARBON NANOTUBE/ALUMINUM COMPOSITES; ALUMINUM-ALLOY COMPOSITE; MECHANICAL-PROPERTIES; CNT/AL COMPOSITES; HEAT-TREATMENT; NANOTUBES; MATRIX; FABRICATION; BEHAVIOR; REINFORCEMENT;
D O I
10.3390/nano13081362
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The deformation behaviour of aluminium reinforced by carbon nanotubes (Al/CNTs) nanocomposites during cold rolling was investigated in this work. Deformation processes after production by conventional powder metallurgy routes may be an efficient approach to improve the microstructure and mechanical properties by decreasing the porosity. Metal matrix nanocomposites have enormous potential to produce advanced components, mainly in the mobility industry, with powder metallurgy being one of the most reported production processes. For this reason, it is increasingly important to study the deformation behaviour of nanocomposites. In this context, nanocomposites were produced via powder metallurgy. Advanced characterization techniques carried out the microstructural characterization of the as-received powders and produced nanocomposites. The microstructural characterization of the as-received powders and produced nanocomposites was carried out through optical microscopy (OM), and scanning and transmission electron microscopy (SEM and TEM), complemented by electron backscattered diffraction (EBSD). The powder metallurgy route followed by cold rolling is reliable for Al/CNTs nanocomposites. The microstructural characterization shows that the nanocomposites exhibit a different crystallographic orientation than the Al matrix. CNTs in the matrix influence grain rotation during sintering and deformation. Mechanical characterization revealed that during deformation, there is an initial decrease in the hardness and tensile strength for the Al/CNTs and Al matrix. The initial decrease was attributed to the Bauschinger effect being more significant for the nanocomposites. The difference in the mechanical properties of the nanocomposites and Al matrix was attributed to distinct texture evolution during cold rolling.
引用
收藏
页数:18
相关论文
共 41 条
  • [1] Agency E.E., 2013, EVERY BREATH WE TAKE
  • [2] Ashby M, 2009, NANOMATERIALS, NANOTECHNOLOGIES AND DESIGN: AN INTRODUCTION FOR ENGINEERS AND ARCHITECTS, P199, DOI 10.1016/B978-0-7506-8149-0.00009-X
  • [3] Interdependence of carbon nanotubes agglomerations, its structural integrity and the mechanical properties of reinforced nickel aluminide composites
    Awotunde, Mary A.
    Adegbenjo, Adewale O.
    Ayodele, Olusoji O.
    Okoro, Avwerosuoghene M.
    Shongwe, Mxolisi B.
    Olubambi, Peter A.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 803 : 514 - 526
  • [4] Beausir B., Analysis Tools for Electron and X-ray diffraction. ATEX-software
  • [5] Production and Characterization of Cu/CNT Nanocomposites
    Carneiro, Iris
    Monteiro, Beatriz
    Ribeiro, Bernardo
    Fernandes, Jose V.
    Simoes, Sonia
    [J]. APPLIED SCIENCES-BASEL, 2023, 13 (06):
  • [6] Deformation Behaviour of Cold-Rolled Ni/CNT Nanocomposites
    Carneiro, Iris
    Fernandes, Jose, V
    Simoes, Sonia
    [J]. APPLIED SCIENCES-BASEL, 2022, 12 (19):
  • [7] Strengthening Mechanisms of Aluminum Matrix Nanocomposites Reinforced with CNTs Produced by Powder Metallurgy
    Carneiro, Iris
    Fernandes, Jose Valdemar
    Simoes, Sonia
    [J]. METALS, 2021, 11 (11)
  • [8] EBSD Analysis of Metal Matrix Nanocomposite Microstructure Produced by Powder Metallurgy
    Carneiro, Iris
    Viana, Filomena
    Vieira, Manuel F.
    Fernandes, Jose, V
    Simoes, Sonia
    [J]. NANOMATERIALS, 2019, 9 (06)
  • [9] Simultaneously enhancing strength and ductility of carbon nanotube/aluminum composites by improving bonding conditions
    Chen, B.
    Kondoh, K.
    Imai, H.
    Umeda, J.
    Takahashi, M.
    [J]. SCRIPTA MATERIALIA, 2016, 113 : 158 - 162
  • [10] Heat treatment behavior and strengthening mechanisms of CNT/6061A1 composites fabricated by flake powder metallurgy
    Chen, Malin
    Fan, Genlian
    Tan, Zhanqiu
    Yuan, Chao
    Guo, Qiang
    Xiong, Dingbang
    Chen, Mingliang
    Zheng, Quan
    Li, Zhiqiang
    Zhang, Di
    [J]. MATERIALS CHARACTERIZATION, 2019, 153 : 261 - 270