# Hardness Improvement of Aluminum Reinforced with Carbon Nanotubes through Forging and Friction Surfacing Process
> Arma L.H.

URL kanonis: https://discover.unhas.ac.id/publications/hardness-improvement-of-aluminum-reinforced-with-carbon-nanotubes-through-forgin
Jurnal / Konferensi: Iop Conference Series Materials Science and Engineering
Tahun terbit: 2020
DOI: https://doi.org/10.1088/1757-899X/875/1/012062
ISSN: 17578981
Citations: 0

## Authors
- Arma L.H.

## Abstract
Abstract This research deals with the improvement of hardness property on the composite material made from aluminum matrix reinforced with carbon nanotubes (Al-CNTs). There were two experiments conducted to enhance hardness property; forging and friction surfacing process. An axial mechanical force forged the Al-CNTs composite up to 40% of height of a cylindrical aluminum. A thermo-mechanical force was also applied in producing Al-CNTs coating by the friction surfacing process using Al-CNTs composite rod. Then, the hardness property obtained from these two processes was investigated. Results of the experiments showed that the hardness of Al-CNTs after the forging process improved 40–50% due to high amount of dislocation during forging which avoids deformation. This was indicating that 1 wt% CNTs does not decrease the hardenability of aluminum alloys. Meanwhile, the hardness Al-CNTs coating was not altered too much by the process of friction surfacing. This is becaused that the homogenous dispersion of the CNTs have occurred during the stir casting process.

## Keywords
- Materials science
- Forging
- Composite number
- Carbon nanotube
- Composite material
- Hardenability
- Aluminium
- Indentation hardness
- Coating
- Metallurgy
- Casting
- Alloy
- Microstructure

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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