Tribological performance evaluation of h-BN nanoparticle reinforced AA 7075 and as-cast AA7075 using Taguchi and genetic algorithm

Beyanagari, Sudheer Reddy; Kandasamy, Jayakrishna

doi:10.1088/2051-672x/ac2795

Cited by 10 publications

(3 citation statements)

References 49 publications

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“…Ultrasonic vibration breaks nano agglomerations when nanoparticles are used as reinforcements in molten alloys. Finally, the melts are fed into a pre-heated cylindrical die and forced using hydraulic pressure [35][36][37]. Different operating parameters recommended for squeeze-assisted stir casting to manufacture the best quality AMC disc brakes are shown in figure 3.…”

Section:  Production Processes For Amc Rotor Discsmentioning

confidence: 99%

Aluminium-Silicon based Metal Matrix Composites for brake rotor applications: a review

Solomon

2023

Eng. Res. Express

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In an automotive vehicle, the brake discs, also known as rotors, contribute significant weight to the engine chassis. Hence, lightweight aluminum brake discs are in the developmental stage as a popular alternative to traditional cast iron or steel brake discs. Weight reduction is desirable to improve vehicle performance and fuel efficiency. Monolithic aluminum is not a practical choice as an alternative to existing commercial brake discs because of its poor operational temperature and wear performance. Literature suggests that Aluminum Metal Matrix composite (AMC) can be an ideal choice for brake discs. AMC brake discs are more resistant to warping and cracking than cast iron discs. They also have better heat dissipation properties, which help reduce brake fade and prolong the life of the brake pads. This study examines the different types of aluminum alloys, reinforcements, and manufacturing processes for manufacturing ideal AMC brake discs. The significance of silicon as the principal alloying element to improve thermal characteristics and incorporate various reinforcements to increase the AMC's wear resistance and frictional stability for brake disc applications is outlined. This article focuses on the thermal and tribological behavior of the AMC brake discs' performance over traditional rotors. The review discusses the different equipment required to assess the tribological characteristics of brake discs to meet industrial requirements. In addition to experimental validation, this paper addresses the necessity of proper rotor design selection and numerical analysis to evaluate the thermo-mechanical behavior of the brake disc at various braking events. The article points out that aluminum metal matrix composites have great potential to replace conventional grey cast iron brake discs. Finally, this review discusses possible future research avenues for developing an AMC rotor disc.

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Section:  Production Processes For Amc Rotor Discsmentioning

confidence: 99%

Aluminium-Silicon based Metal Matrix Composites for brake rotor applications: a review

Solomon

2023

Eng. Res. Express

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“…Singh et al [33] studied the influence of wear parameters on the wear and friction behaviour of AA6082-T6/SiC/B 4 C composites using RSM. Reddy et al [34] also reported the importance of developing regression models to correlate the wear parameters and the wear rate.…”

Section: Introductionmentioning

confidence: 99%

Prediction of dry sliding wear behaviour of China clay particles reinforced AA6082 matrix composites using response surface methodology and analysis of the worn surfaces

Bright¹,

Selvakumar²,

Sumathi³

2022

Surf. Topogr.: Metrol. Prop.

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This research work presents an attempt solemnly carried out to analyze and predict the wear behaviour of the cost-effective China clay particles reinforced AA6082 aluminium alloy composites. The combined effect of the independent variables (mass fraction of the reinforcement, applied load and sliding speed) on the wear loss and coefficient of friction of the composites were studied. The wear tests were conducted using a computerized pin on disc tribometer. For all the experiments the sliding distance was kept constant as 1500 m. In order to perform the experiments in an organized manner, the response surface methodology (RSM) was designated. The significant parameters which govern the wear loss and coefficient of friction were identified using the ANOVA (Analysis of variance) test. The regression equations developed to predict the response parameters (wear and coefficient of friction) were validated extensively by choosing several values of the independent variables within the design space. From the study, it was noted that RSM holds good reliability in the prediction of the wear behaviour of the composites. The composite materials exhibited better wear resistance with the increase in the incorporation of China clay particles. The worn-out samples were segregated as high, medium and low wear loss categories to analyze the worn surface morphology and to interpret the wear mechanism.

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“…The Taguchi method is an economical and efficient experimental design method. It emphasises optimisation through design and not through many experiments and introduces the influence of uncontrollable factors into the experimental design [ 28 , 29 , 30 , 31 , 32 , 33 ]. The Taguchi method combines orthogonal experiments and analysis of variance (ANOVA) [ 34 , 35 , 36 , 37 , 38 , 39 ] to determine the best combination of controllable factors to reduce the impact of uncontrollable factors on system quality fluctuations.…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimisation of Curing Cycle of Thick Aramid Fibre/Epoxy Composite Laminates

et al. 2021

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Aramid fibre-reinforced epoxy composites (AF/EP) are promising materials in the aerospace, transportation, and civil fields owing to their high strength, high modulus, and light weight. Thick composite laminates are gradually being applied to large composite structures such as wind turbine blades. During curing, temperature overheating is a common problem in thick composites, which leads to matrix degradation, thermal residual stresses, and uneven curing. This paper proposes a signal-to-noise ratio (SNR) method to optimise the curing cycle of thick AF/EP laminates and reduce the overheating temperature. During curing, the temperature and strain evolution in a thick AF/EP laminate were monitored using fibre Bragg grating sensors. The effects of the curing factors on the overheating temperature of the thick AF/EP laminate were evaluated using the Taguchi method and predicted via the SNR method and analysis of variance. The results indicate that the dwelling temperature is the main factor affecting the overheating temperature. The optimal curing cycle involves an overheating temperature of 192.72 °C, which constitutes an error of 2.58% compared to the SNR method predictions. Additionally, in comparison to the initial curing cycle, the overshoot temperature in the optimised curing cycle was reduced by 58.48 °C, representing a reduction ratio of 23.28%.

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Tribological performance evaluation of h-BN nanoparticle reinforced AA 7075 and as-cast AA7075 using Taguchi and genetic algorithm

Cited by 10 publications

References 49 publications

Aluminium-Silicon based Metal Matrix Composites for brake rotor applications: a review

Aluminium-Silicon based Metal Matrix Composites for brake rotor applications: a review

Prediction of dry sliding wear behaviour of China clay particles reinforced AA6082 matrix composites using response surface methodology and analysis of the worn surfaces

Multi-Objective Optimisation of Curing Cycle of Thick Aramid Fibre/Epoxy Composite Laminates

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