Fabrication of Al5083 surface composites reinforced by CNTs and cerium oxide nano particles via friction stir processing

Hosseini, Seyed Ali; Ranjbar, Khalil; Dehmolaei, R.; Amirani, A.R.

doi:10.1016/j.jallcom.2014.10.158

Cited by 126 publications

(52 citation statements)

References 34 publications

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“…Also, FSP have been utilized to fabricate intermetallic composites such as Al-Ni [20] and Al-Fe [21] with a fine grained Al matrix. In addition, FSP has been used to fabricate hybrid composites such as Al/SiC-Al 2 O 3 [22,23] and Al/CeO 2 -CNT [24] by reinforcing the metal matrix with a mixture of two or more different type of particles which produces properties superior to or intermediate to those of the individual constituents.…”

Section: Introductionmentioning

confidence: 99%

The influence of multipass friction stir processing on the corrosion behavior and mechanical properties of zircon-reinforced Al metal matrix composites

Rahsepar

Jarahimoghadam

2016

Materials Science and Engineering: A

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Section: Introductionmentioning

confidence: 99%

The influence of multipass friction stir processing on the corrosion behavior and mechanical properties of zircon-reinforced Al metal matrix composites

Rahsepar

Jarahimoghadam

2016

Materials Science and Engineering: A

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“…Furthermore, it has been observed that CNT has low wettability by most metals, resulting in low interaction with the matrix and low potential for strengthening by load transfer mechanisms [7][8][9] . Many authors have tried to improve CNT dispersion in metal matrix by several processing routes, as thermal spray 6,10 , high energy ball milling 11 , friction stir processing 12 . In most cases, it has been observed that the extreme processing conditions mainly related to high temperatures and stresses can damage the CNT structure 13,14 .…”

mentioning

confidence: 99%

Production of TiO2 Coated Multiwall Carbon Nanotubes by the Sol-Gel Technique

2017

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In recent years, efforts in developing high strength-low density materials are increasing significantly. One of the promising materials to attend this demand is the carbon nanotube (CNT), to be used mainly as a reinforcing phase in lightweight metal matrix composites (MMC). In the present work, the sol-gel technique has been employed to obtain TiO 2 coating on the surface of commercial multiwall carbon nanotubes (MWCNT). The aim of such coating is to improve the thermal stability of MWCNT in oxidize environment, which is necessary in most of MMC processing routes. Calcination in inert atmosphere was performed in order to crystallize a stable coating phase. The hybrid CNT/TiO 2 nanocomposite was characterized by X-Ray Diffractometry (XRD), Raman spectroscopy, Thermogravimetry (TGA) and Field Emission Gun -Scanning Electron Microscopy (FEG-SEM). The coating structure was observed to change from anatase to rutile, as the calcination temperature increases from 500 to 1000ºC. Results from thermogravimetric analysis showed that the samples calcined at 1000 ºC were more resistant to oxidation at high temperatures.

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“…Further, B 4 C particles create more geometrically necessary dislocations (GNDs) during thermal cycles. This is due to the large 'coefficient of thermal expansion' mismatch between the matrix and the reinforcements [14,30]. The higher hardness value was possibly due to the uniform distribution of B 4 C particles which is also evident from the microstructural studies.…”

Section: Microhardness Studymentioning

confidence: 91%

“…Hosseini et al [14] carried out FSP to incorporate CNTs and cerium oxide particles into the matrix of Al5083 alloy. They have obtained microstructural modification, grain size reduction, better distribution of reinforcement and the mechanical properties of the composite improved.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation for Multi-Response Optimization of Friction Stir Process Parameters During Fabrication of AA6061/B4Cp Composites

Puviyarasan

Kumar

2015

Arab J Sci Eng

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In this work, friction stir processing (FSP) has been employed to fabricate metal matrix composites by incorporating B 4 C reinforcement particles into the aluminum AA6061 matrix. Taguchi experimental design, consisting of three factors and three levels, is used for minimizing the number of experiments. The factors considered are tool rotational speed, traverse feed and tool tilt angle. Desirability function analysis was employed to optimize the FSP parameters for simultaneous improvement of tensile strength and microhardness of the composites. The optimal parameters were found, and it was confirmed by experimental results. The composites fabricated using optimal process parameters exhibit a higher tensile strength (174 MPa) and microhardness (183 Hv). The tensile strength and microhardness values observed have been correlated with microstructural studies. Scanning electron micrograph revealed defect-free fabricated composites and uniform distribution of reinforcement particles in the stir zone.

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Fabrication of Al5083 surface composites reinforced by CNTs and cerium oxide nano particles via friction stir processing

Cited by 126 publications

References 34 publications

The influence of multipass friction stir processing on the corrosion behavior and mechanical properties of zircon-reinforced Al metal matrix composites

The influence of multipass friction stir processing on the corrosion behavior and mechanical properties of zircon-reinforced Al metal matrix composites

Production of TiO2 Coated Multiwall Carbon Nanotubes by the Sol-Gel Technique

An Experimental Investigation for Multi-Response Optimization of Friction Stir Process Parameters During Fabrication of AA6061/B4Cp Composites

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