Evaluation of the effect of adding carbon nanotubes on the effective mechanical properties of ceramic particulate aluminum matrix composites

Nie, Changjiang; Wang, Hengxue; He, Jing

doi:10.1016/j.mechmat.2019.103276

Cited by 15 publications

(5 citation statements)

References 53 publications

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“…% composite at milling time The prolong milling time had extruded the particles, which is due to the effect of stress mitigation at the boundaries along the centrifugal direction [27]. Figure 3c 1 shows the irregular and improper formation of particles due to the uneven hammering force created for the less BTPR (6:1) [28]. The same behaviour is not evidenced for the BTPR (12:1) and it provides the equiaxed particles by the effect of milling time 480 minutes and milling speed 300 rpm for the Al/CNT 1 wt.…”

Section: Resultsmentioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Manikandan

Elayaperumal

Issac

2021

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The mechanical and tribological properties of the Al/CNT composites could be controlled and improved by the method of its fabrication process. This research article deals with the optimization of mechanical and tribological properties of Al/CNT composites, which are fabricated using the mechanical alloying process with the different weight percentage of multi-walled CNT reinforcement. The phase change and the presence of CNT are identified using the X-Ray Diffraction (XRD) analysis. The influence of mechanical alloying process and the multi-walled CNT reinforcement on the mechanical, and tribological behaviours of the Al/CNT composites are studied. The optimal mechanical alloying process parameters and the weight percentage of multi-walled CNT reinforcement for the Al/CNT composite are identified using the Response Surface Methodology (RSM), which exhibits the better hardness, compressive strength, wear rate and Coefficient of Friction (CoF). The Al/CNT composite with 1.1 wt.% of CNT has achieved the optimal responses at the milling speed 301 rpm and milling time 492 minutes with the ball to powder weight ratio 9.7:1, which is 98% equal to the experimental result. This research also reveals that the adhesive wear is the dominant wear mechanism for the Al/CNT composite against EN31 stainless steel but the optimal Al/CNT composite with 1.1 wt.% of multi-walled CNT has experienced a mild abrasive wear.

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Section: Resultsmentioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Manikandan

Elayaperumal

Issac

2021

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“…This increase is due to the binding of CNT walls to the Al matrix and form a barrier layer to indentation [28]. The micro hardness increases till the sintering temperature 500 °C, which is due to the refined grains and ceramic layer of of Al 4 C 3 at the Al-CNT interface [29]. Further, the micro hardness of Al/ CNT composite decreases at sintering temperature 550 °C due to the coarser grains.…”

Section: Micro Hardnessmentioning

confidence: 99%

Impact of spark plasma sintering process on tribo surface of Al/CNT composites

Manikandan¹,

Elayaperumal²,

Issac³

et al. 2021

Surf. Topogr.: Metrol. Prop.

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Spark Plasma Sintered Aluminium (SPSed Al) composites are widely used in various micro components of the engineering applications. This paper deals with the evaluation of tribological behavior of the SPSed Al composites with respect to the SPS process parameters. The multi-walled Carbon Nano Tubes (CNTs) are added to the SPSed Al composites to improve its wear resistance by a solid lubrication effect. The presence and distribution of CNT over the Al matrix are confirmed through the FESEM analysis and the crystallographic changes of the SPSed Al/CNT composites are examined using the XRD analysis. The hardness of the SPSed Al/CNT composite has been improved by the re-crystallization at the optimal SPS condition. It also influences the frictional wear behavior of the Al/CNT composites and it resulted in overcome of ploughing on the Al surface. The frictional wear behavior of the SPSed Al/CNT composites is optimized using the taguchi methodology and the minimum wear rate of 24.7 × 10–6 g m−1 and the CoF of 0.192 are obtained for the Al/CNT1 wt% composite sintered at 500 °C and ball milled at 300 rpm for 480 min. The worn surface of the Al/CNT1 wt% composite reveals that the mild abrasive wear is occurred at the optimal tribo condition.

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“…While a few studies [12][13][14] have explored the properties of AMCs using experimental and numerical approaches, a knowledge gap still exists. This paper aims to address this gap by investigating the influence of ARB and CR processes on the mechanical properties of an Al-TiCp composite, utilizing a combination of experimental characterization and numerical analysis via FEA.…”

Section: Introductionmentioning

confidence: 99%

Integrating Experimental and Computational Analyses for Mechanical Characterization of Titanium Carbide/Aluminum Metal Matrix Composites

Farid,

Li,

Wang

et al. 2024

Materials

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This study investigates the mechanical properties of titanium carbide/aluminum metal matrix composites (AMMCs) using both experimental and computational methods. Through accumulative roll bonding (ARB) and cryorolling (CR) processes, AA1050 alloy surfaces were reinforced with TiCp particles to create the Al–TiCp composite. The experimental analysis shows significant improvements in tensile strength, yield strength, elastic modulus, and hardness. The finite element analysis (FEA) simulations, particularly the microstructural modeling of RVE−1 (the experimental case model), align closely with the experimental results observed through scanning electron microscopy (SEM). This validation underscores the accuracy of the computational models in predicting the mechanical behavior under identical experimental conditions. The simulated elastic modulus deviates by 5.49% from the experimental value, while the tensile strength shows a 6.81% difference. Additionally, the simulated yield strength indicates a 2.85% deviation. The simulation data provide insights into the microstructural behavior, stress distribution, and particle–matrix interactions, facilitating the design optimization for enhanced performance. The study also explores the influence of particle shapes and sizes through Representative Volume Element (RVE) models, highlighting nuanced effects on stress–strain behavior. The microstructural evolution is examined via transmission electron microscopy (TEM), revealing insights regarding grain refinement. These findings demonstrate the potential of Al–TiCp composites for lightweight applications.

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Evaluation of the effect of adding carbon nanotubes on the effective mechanical properties of ceramic particulate aluminum matrix composites

Cited by 15 publications

References 53 publications

Bulletin of the Polish Academy of Sciences: Technical Sciences

Bulletin of the Polish Academy of Sciences: Technical Sciences

Impact of spark plasma sintering process on tribo surface of Al/CNT composites

Integrating Experimental and Computational Analyses for Mechanical Characterization of Titanium Carbide/Aluminum Metal Matrix Composites

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