Hot Extruded Carbon Nanotube Reinforced Magnesium Matrix Composites and its Microstructure, Mechanical and Corrosion Properties

Mindivan, Harun; Efe, Arife; Kayalı, E. Sabri

doi:10.1007/978-3-319-48231-6_79

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…However, boron carbide particles were found to increase the coefficient of friction. Similar results have been previously reported for other supplements[28,[29][30][31].…”

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confidence: 92%

The production of $B_{4}C$ reinforced metal matrix composite from waste $AZ91$ magnesium alloy using the ball milling method

Efe Görmez

2024

Journal of New Results in Science

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In this study, the Mg/$B_4$C composite reinforced with boron carbide particles was produced by mechanical milling method using waste AZ91 magnesium alloy chips. The mechanical and tribological properties of the produced composites were investigated through hardness and wear tests. A mixture of AZ91 magnesium alloy chips, aluminum, and $B_4$C powders was milled at a rotation speed of 300 rpm with a ball-to-powder ratio of 20:1 for 3 hours. The milled powders were first cold pressed and then sintered at 550 °C for 3 hours. In density measurement, it was observed that the sample reinforced with B4C exhibited an increase in density. In X-ray diffraction analysis, peaks corresponding to Mg, $Mg_{17}Al_{12}$, and MgO were detected, while the $B_4$C phase could not be identified. On the other hand, $B_4$C particles in the microstructure were revealed in the energy dispersive X-ray spectroscopy analysis. Scanning electron microscope images revealed that the Mg/$B_4$C composite had lower porosity, consistent with density measurements. It was found that the hardness and wear resistance of the Mg/B4C composite were higher than those of the Mg alloy, which can be attributed to the presence of homogenously distributed hard B4C particles within the microstructure.

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“…However, boron carbide particles were found to increase the coefficient of friction. Similar results have been previously reported for other supplements[28,[29][30][31].…”

supporting

confidence: 92%

The production of $B_{4}C$ reinforced metal matrix composite from waste $AZ91$ magnesium alloy using the ball milling method

Efe Görmez

2024

Journal of New Results in Science

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“…The corrosion rate of the composite decreased by up to 2% when CNT was added to it; however, the corrosion rate increased when a larger amount of CNT was added. 80 According to the findings of studies, the addition of CNTs to the matrix of magnesium and its alloys increased the composite wettability and bonding strength. CNT/Mg interface bonding has been greatly improved by Ni coating with the ability to defend the structural integrity of CNTs with excellent mechanical properties.…”

Section: Cntsmentioning

confidence: 99%

Latest research and developments of ceramic reinforced magnesium matrix composites—A comprehensive review

Bharathi

Kumar

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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High-performance lightweight materials give rise to a demand for magnesium-based composites. Magnesium metal matrix composites have found extensive applications in the aerospace and automotive industries due to their remarkable mechanical properties. Limitations in dispersion, strength, and interface strength of magnesium-based composites are seen through the addition of some hybrid reinforcements and different fabrication techniques. In this regard, previous studies have demonstrated the ability of various reinforcements such as graphene, carbon nano tubes, silicon carbide, and titanium carbide to a magnesium matrix for the enhancement of its metallurgical properties. There are still several challenges in the development of magnesium metal matrix composites, such as non-homogeneous distribution, poor creep resistance at elevated temperatures, limited cold work ability, and low corrosion resistance. The challenges that need to be overcome and suggestion for improving the wear resistance and frictional properties of magnesium metal matrix composites were studied and discussed. This review evaluates the importance of different reinforcement percentages as well as the development of magnesium metal matrix composites. The different types of fabrication techniques that are well suited to overcome the challenges of poor dispersing, non-homogeneous distribution, interfacial problems, and poor wettability are discussed. Microstructure analysis, the agglomerating effect, and matrix bonding strength are also discussed. The challenges and future scope of research are discussed for the demonstration of the importance of more scientific studies in magnesium metal matrix composites.

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Hot Extruded Carbon Nanotube Reinforced Magnesium Matrix Composites and its Microstructure, Mechanical and Corrosion Properties

Cited by 2 publications

References 12 publications

The production of $B_{4}C$ reinforced metal matrix composite from waste $AZ91$ magnesium alloy using the ball milling method

The production of $B_{4}C$ reinforced metal matrix composite from waste $AZ91$ magnesium alloy using the ball milling method

Latest research and developments of ceramic reinforced magnesium matrix composites—A comprehensive review

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