Fabrication and Characterization of Carbon Nanotube Nanocomposites Into 2024-T3 Al Substrates Via Friction Stir Welding Process

作者: H. E. Misak , C. A. Widener , D. A. Burford , R. Asmatulu

DOI: 10.1115/1.4026838

关键词:

摘要: Carbon nanotube (CNT)-aluminum (Al) nanocomposites were prepared using friction stir welding (FSW) processing, and then the mechanical properties of these nanostructured materials determined universal MTS machine. The fabrication CNT-metal composite consisted following steps: (a) homogenizing CNTs Al powder at three different ratios: 0/100, 25/75, 50/50, (b) compacting mixtures into grooves that initially machined substrate (2024-T3) for cases, (c) incorporating in a by FSW process, (d) validating dispersion substrates after characterization steps. Scanning electron microscopy (SEM) analysis other physical tests (e.g., mechanical, metallography, fracture surfaces) conducted on substrates. Test results showed dispersed aligned uniquely locations metal structures depending zones: advancing, retreating, transverse, zone regions. each also compared to distribution CNTs. advancing side had highest amount mixed aluminum while retaining yield strength (YS); however, elongation was reduced. retreating little no distributed not significantly affected. YS influence lower CNT/Al ratio (25/50), but significant effect noticed higher 50/50. failure affected both cases. transverse reduced mixtures. These may open up new possibilities aircraft manufacturing industries future development field.

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