Processing, microstructure, hardness and wear behavior of carbon nanotube particulates reinforced Al6061 alloy composites

Preethi, K.; Raju, T. N.; Shashidhar, S.; Nagral, Madeva

doi:10.1016/j.matpr.2021.03.608

Cited by 8 publications

(4 citation statements)

References 9 publications

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“…This is due to the hardness of the composite material. It is generally believed that contribution of hard particles to aluminum alloys results in an improvement of the wear resistance of the base alloy to a great extent [16]. At 3% of tungsten carbide the hardness of the composites is less.…”

Section: S/n Ratio and Anovamentioning

confidence: 99%

Determination of wear rate and coefficient of friction of Al6262 reinforced with different weight percentage of WC/MoS2 under dry sliding condition

Hemadri,

Kukanur

et al. 2024

Res. Eng. Struct. Mat.

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A tribological investigation was undertaken on hybrid metal matrix composites based on Aluminum alloy 6262, incorporating varying weight percentages of Tungsten Carbide (WC) and Molybdenum disulfide (MoS2) under dry sliding conditions. Specifically, Tungsten Carbide was incorporated at 3%, 6%, and 9%, while Molybdenum disulphide was introduced at 2%, 4%, and 6%. The fabrication of these hybrid composites was accomplished using the stir casting technique. The experimental design followed an L27 orthogonal array, and Taguchi optimization was employed to identify the optimal combination of input parameters. The orthogonal array, signal-to-noise ratio and analysis of variance were employed to study the optimal testing parameters on developed composites. The optimal formulation, resulting in the minimum wear rate and coefficient of friction, was determined to be 9% WC, 6% MoS2, a load of 10N, a sliding velocity of 1 m/s, and a sliding distance of 400 m. Characterization was carried out for Al6262/WC/MoS2 hybrid composite by using scanning electron microscopy (SEM).

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Section: S/n Ratio and Anovamentioning

confidence: 99%

Determination of wear rate and coefficient of friction of Al6262 reinforced with different weight percentage of WC/MoS2 under dry sliding condition

Hemadri,

Kukanur

et al. 2024

Res. Eng. Struct. Mat.

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“…Preethi et al studied that mixtures reinforced with 500nm size of 1-1,5% and 2% CNT to Al6061 alloy produced by powder metallurgy technique with mechanical alloying at 150 rpm for 4 hours. The hardness value and wear data of the produced samples were examined under 10 N and 20 N loads, and according to the results obtained, an increase in hardness values, a decrease in density values occurred, and the best wear resistance was observed in the 2% CNT reinforced sample [8]. Aranke et al investigated the wear behavior of composites formed by reinforcing 0,25-0,5-0,75 by % weight of multi-wall carbon nanotubes (MWCNT) to Al 7075 alloy under 20-40 N and 60 N loads at 200-300 and 450 rpm.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Tribological Applications and Mechanical Properties of Zinc-Aluminium (ZA40)/Multi-Wall Carbon Nanotube (MWCNT) Composite Alloys

Deniz Yalçın,

Çanakçı

2023

Teh. glas. (Online)

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In this study, ZA40/ MWCNT composites were produced by using powder metallurgy technique and hot press method by adding 0,5-1-1,5-2% wt. MWCNT to ZA40 alloy. Powders made with mechanical alloys were sintered by hot pressing for 3 hours under 500 °C and 800 MPa pressure. Wear tests were carried out under 5N and 10N loads in a dry friction environment using the ball-on-disk technique. Weight losses, average friction force, and wear rate of the samples were calculated after wear tests. Morphology, internal structure images, and examination of worn surfaces of the samples were investigated using scanning electron microscopy (SEM). The wear test results show the coefficient of friction of ZA40-2wt. % MWCNT was 0,18 µ (lower than the coefficient of friction of 0,66 µ for ZA40 alloy). The wear rate of ZA40 alloy was almost 6 times higher than ZA40-2 wt. % MWCNT composite.

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“…The most popular development direction of CNTs is their application in multi-component materials. The typical recent examples include cellulose-CNTs for methylene adsorption [7], nitrogen-doped graphene-CNTs for microwave absorption [8], polypyrrole-CNTs for storage devices [9], ZnO-CNTs dispersed in PU for better anti-corrosion resistance [10], cement [11,12], and Al alloy reinforced with CNTs [13]. The specific optical and electrical properties, high specific surface area, high chemical activity, and significant mechanical behavior are the reasons for the development of a great number of such composite materials [14,15].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behavior of Bi-Layer and Dispersion Coatings Composed of Several Nanostructures on Ti Substrate

et al. 2021

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Three coatings suitable for biomedical applications, including the dispersion coating composed of multi-wall carbon nanotubes (MWCNTs), MWCNTs/TiO2 bi-layer coating, and MWCNTs-Cu dispersion coating, were fabricated by electrophoretic deposition (EPD) on Ti Grade II substrate. Optical microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and nanoindentation were applied to study topography, chemical, and phase composition, roughness, hardness, Young’s modulus, plastic, and elastic behavior. The results showed that the best mechanical properties in terms of biomedical application were achieved for the MWCNTs coating with titania outer layer. Nevertheless, both the addition of nanocopper and titania improved the mechanical resistance of the base MWCNTs coating. Compared to our previous experiments on Ti13Nb13Zr alloy, a general tendency is observed to form more homogenous coatings on pure metal than on the alloy, in which chemical and phase compositions are more complex.

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Processing, microstructure, hardness and wear behavior of carbon nanotube particulates reinforced Al6061 alloy composites

Cited by 8 publications

References 9 publications

Determination of wear rate and coefficient of friction of Al6262 reinforced with different weight percentage of WC/MoS2 under dry sliding condition

Determination of wear rate and coefficient of friction of Al6262 reinforced with different weight percentage of WC/MoS2 under dry sliding condition

Investigation of Tribological Applications and Mechanical Properties of Zinc-Aluminium (ZA40)/Multi-Wall Carbon Nanotube (MWCNT) Composite Alloys

Mechanical Behavior of Bi-Layer and Dispersion Coatings Composed of Several Nanostructures on Ti Substrate

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