Assessment of the Tribological Properties of Aluminum Matrix Composites Intended for Cooperation with Piston Rings in Combustion Engines

Dolata-Grosz, A.; Wieczorek, J.; Dyzia, M.; Starczewski, M.

doi:10.3390/ma15113806

Cited by 10 publications

(5 citation statements)

References 30 publications

(40 reference statements)

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“…Due to these benefits, carbonfiber reinforced polymer has been used in the connecting rod and pistons of an engine [57]. Silicon Carbides (SiC) and glass carbon reinforced aluminum alloy has also been used in engine pistons [58], [59].…”

Section: Structural Design and Materials To Improve Modal Performancementioning

confidence: 99%

Noise and Vibration in Switched Reluctance Motors: A Review on Structural Materials, Vibration Dampers, Acoustic Impedance, and Noise Masking Methods

2023

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Today, the majority of the commercial electrified vehicles use Interior Permanent Magnet Motors (IPMSMs) for propulsion. An IPMSM can deliver high starting torque and high efficiency in the low-and medium-speed operation, which makes it attractive for propulsion applications. However, IPMSMs generally utilize rare-earth permanent magnets and there are growing concerns about the price volatility and supply chain of these materials. Switched Reluctance Motors (SRMs) can potentially replace IPMSMs in various applications including propulsion. An SRM has a simple and low-cost construction, and it can provide reliable operation at high-speed and high-temperature conditions. Compared to IPMSMs, SRMs radiate considerably higher acoustic noise, which have historically hindered their widespread acceptance. Various approaches to mitigate acoustic noise and vibration at the source level have already been explored in the literarture by improving the electromagnetic design and current control. This paper explores multiple noise and vibration mitigation methods that can be applied at the transmission stage. First, the noise comparison between the Internal Combustion Engine (ICE) and SRMs is discussed, and then the methods used for ICEs are presented for their applicability to SRMs.

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Section: Structural Design and Materials To Improve Modal Performancementioning

confidence: 99%

Noise and Vibration in Switched Reluctance Motors: A Review on Structural Materials, Vibration Dampers, Acoustic Impedance, and Noise Masking Methods

2023

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“…The most common application of aluminum in IC engines is for making engine blocks, pistons, and engine heads. Also, aluminum alloys have good corrosion resistance and transfer heat more efficiently due to their higher specific thermal conductivity compared to steel alloys, which is important for maintaining optimal temperature [33]. However, it should be noted that for the production of parts of the piston and cylinder liner, connecting rod, and bearings, steels are often used due to their greater durability under high temperatures and pressures [34,35].…”

Section: Introductionmentioning

confidence: 99%

Particulate Matter Emission and Air Pollution Reduction by Applying Variable Systems in Tribologically Optimized Diesel Engines for Vehicles in Road Traffic

Milojević,

Glišović,

Savić

et al. 2024

Atmosphere

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Regardless of the increasingly intensive application of vehicles with electric drives, internal combustion engines are still dominant as power units of mobile systems in various sectors of the economy. In order to reduce the emission of exhaust gases and satisfy legal regulations, as a temporary solution, hybrid drives with optimized internal combustion engines and their associated systems are increasingly being used. Application of the variable compression ratio and diesel fuel injection timing, as well as the tribological optimization of parts, contribute to the reduction in fuel consumption, partly due to the reduction in mechanical losses, which, according to test results, also results in the reduction in emissions. This manuscript presents the results of diesel engine testing on a test bench in laboratory conditions at different operating modes (compression ratio, fuel injection timing, engine speed, and load), which were processed using a zero-dimensional model of the combustion process. The test results should contribute to the optimization of the combustion process from the aspect of minimal particulate matter emission. As a special contribution, the results of tribological tests of materials for strengthening the sliding surface of the aluminum alloy piston and cylinder of the internal combustion engine and air compressors, which were obtained using a tribometer, are presented. In this way, tribological optimization should also contribute to the reduction in particulate matter emissions due to the reduction in fuel consumption, and thus emissions due to the reduction in friction, as well as the recorded reduction in the wear of materials that are in sliding contact. In this way, it contributes to the reduction in harmful gases in the air.

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“…Generally, hybridization in a metal matrix is done to combine the individual properties of different reinforcements for enhancing the performance of the composite. Among reinforcements used in HAMC, ceramic materials are most widely used in many recent applications despite their high cost due to their high hardness and chemical stability [2][3][4]. Moreover, the ceramic particles reinforced HAMCs exhibit better fracture toughness, ductility, and corrosion resistance properties than the agro and industrial waste reinforcements.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the effect of reinforcement compositions on the properties of Aluminum LM 25/h-BN/B 4 C hybrid composites

Katla,

2023

Preprint

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This study investigates the effect of the compositions of hexagonal boron nitride (h-BN) and boron carbide (B4C) reinforcements on the properties of aluminum matrix composites (AMC). The compositions of both the reinforcements in the Aluminum LM 25(A 356) alloy metal matrix are varied from 0 to 10% by volume. Based on the mixture design of experiment, ten AMCs are fabricated with different reinforcement compositions by the stir casting process. The microstructure, density, porosity, and hardness of these AMCs are analyzed and compared with that of unreinforced base aluminum alloy to study the effects of reinforcement composition. Microstructure analysis revealed that the reinforcements were uniformly distributed in the matrix phase with minimal agglomeration for the composites with up to 6% reinforcements. The density was found to decrease with the increase in the reinforcements due to the presence of porosities in the matrix and the addition of low-density reinforcements. With the increase in the volume percentage of reinforcements in hybrid composites, there was an increase in hardness. BC10BN0 mono composites exhibited the highest hardness value of 78.8 BHN due to the presence of hard B4C ceramic particles, whereas BC10BN0 demonstrated the lowest hardness of 57.13 BHN because of the h-BN particles having lower hardness than B4C particles. Among the hybrid composites, BC5BN5 resulted in the highest hardness, which was 26.3% higher than the base aluminum alloy. From the desirability analysis, 94.194% of LM 25, 2.389% of h-BN, and 3.417% of B4C were found to be the optimal conditions for minimizing porosity and maximizing hardness. The hybrid aluminum matrix composites developed in the present study can be utilized for automobile and aerospace applications.

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Assessment of the Tribological Properties of Aluminum Matrix Composites Intended for Cooperation with Piston Rings in Combustion Engines

Cited by 10 publications

References 30 publications

Noise and Vibration in Switched Reluctance Motors: A Review on Structural Materials, Vibration Dampers, Acoustic Impedance, and Noise Masking Methods

Noise and Vibration in Switched Reluctance Motors: A Review on Structural Materials, Vibration Dampers, Acoustic Impedance, and Noise Masking Methods

Particulate Matter Emission and Air Pollution Reduction by Applying Variable Systems in Tribologically Optimized Diesel Engines for Vehicles in Road Traffic

Investigation on the effect of reinforcement compositions on the properties of Aluminum LM 25/h-BN/B 4 C hybrid composites

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