Effect of Heat Treatment on Mechanical properties of Aluminium metal matrix composite (AA6061/MoS<sub>2</sub>)

Manda, Chandra Sekhar; Babu, B. Surendra; Ramaniah, N.

doi:10.1080/2374068x.2020.1860593

Cited by 13 publications

(4 citation statements)

References 37 publications

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“…Therefore, it is important to carefully select the heat treatment process and parameters to achieve the desired mechanical properties for the specific application. Chandra et al (32) fabricated MoS2reinforced AA6061 by a stir casting technique and carried out heat treatment at a solutionized temperature of 540°C for 1 hour. On completion of solution treatment, test specimens were quenched immediately in water and then thermally aged at 180°C.…”

Section: Introductionmentioning

confidence: 99%

Prediction and optimization of heat treatment effects on hardness and electrical conductivity of aluminum composite reinforced with nano alumina based on response surface methodology

Rumi¹,

Rahman²

2023

Res. Eng. Struct. Mater.

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Section: Introductionmentioning

confidence: 99%

Prediction and optimization of heat treatment effects on hardness and electrical conductivity of aluminum composite reinforced with nano alumina based on response surface methodology

Rumi¹,

Rahman²

2023

Res. Eng. Struct. Mater.

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“…Figure 5 shows that the universal tensile strength of the Al7075-WC composite specimens aged at 250 °C is higher than that of the non-aged and other aged composites, due to the gradual increase in Al and Mg intermetallic compounds occupied in the grain boundary, which resists the dislocation boundary and this results in an increase in the tensile strength of the composite. In contrast, the amount of formation of Al 2 Cu, Mg 2 Si and MgZn 2 intermetallic phases are increased when the composite is aged at 150 °C and 250 °C, as shown in Figure 4 b,c, with fine grains and this could represent a marginal enhancement in the tensile strength of the composite [ 53 ]. This observation was reported as the ageing temperature is high enough to melt the Al and Mg intermetallic phases and form coarse grain, resulting in a drop in the tensile strength of the composite at 350 °C and 450 °C.…”

Section: Resultsmentioning

confidence: 99%

Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite

Rajaram¹,

Subbiah²,

Parammasivam

et al. 2022

Materials

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In this study, aluminum alloy (Al7075) composites with a 4% weight fraction of tungsten carbide (WC) were manufactured using a stir casting process and the developed composites were subjected to various ageing temperatures. An attempt has been made to predict the age-hardening temperature with the enhanced mechanical and wear properties of Al7075-WC. The result shows that the composite specimen aged at 250 °C offered maximum tensile strength and the Brinell hardness number was increased by 37.1% and 50.5%, respectively; the maximum impact energy was observed to be 92.2% for the 450 °C aged composites, compared to the non-aged Al7075-WC composites. The strength properties of the Al7075-WC composite decreased to 30.86%, 4.7%, and 24.9% when the composite specimens aged at 350 °C. The mechanical properties of the Al7075-WC composite were increased at the age-hardening temperatures from 150 °C to 250 °C and decreased from 250 °C to 350 °C. The wear testing pin-on-disc setup utilized to determine the wear characteristics of the prepared MMC with wear parameters of load and sliding distance and the wear resistance of the composite specimens increased due to ageing. The fractography analysis of the composite samples carried out by scanning electron microscope (SEM) images revealed that the fracture of the composite during the tensile test is a mixture of ductile and brittle modes.

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“…Stir casting has been used to prepare test samples of Al reinforced by tungsten carbide; findings reveal that there was an increase of 62% and 6% in tensile strength and hardness respectively [23]. On the other hand, the flexural strain was reduced with an increase in molybdenum disulfide powder in AA6061-T6 [24]. In another study, the doping of graphite manifested better wear resistance as compared to than molybdenum disulfide particles-based composite for the selected parameters at a normal environment.…”

Section: Introductionmentioning

confidence: 96%

Multi-Objective Optimization of WEDM of Aluminum Hybrid Composites Using AHP and Genetic Algorithm

et al. 2021

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Aluminum hybrid composites have the potential to satisfy emerging demands of lightweight materials with enhanced mechanical properties and lower manufacturing costs. There is an inclusion of reinforcing materials with variable concentrations for the preparation of hybrid metal matrix composites to attain customized properties. Hence, it is obligatory to investigate the impact of different machining conditions for the selection of optimum parameter settings for aluminum-based hybrid metal matrix composite material. The present study aims to identify the optimum machining parameters during wire electrical discharge machining of samples prepared with graphite, ferrous oxide, and silicon carbide. In the present research work, five different process parameters and three response parameters such as material removal rate, surface roughness, and spark Gap are considered for process optimization. Energy-dispersive spectroscopy and scanning electron microscopy analysis reported the manifestation of the recast layer. Analytical hierarchy process and genetic algorithm have been successfully implemented to identify the best machining conditions for hybrid composites.

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Effect of Heat Treatment on Mechanical properties of Aluminium metal matrix composite (AA6061/MoS₂)

Cited by 13 publications

References 37 publications

Prediction and optimization of heat treatment effects on hardness and electrical conductivity of aluminum composite reinforced with nano alumina based on response surface methodology

Prediction and optimization of heat treatment effects on hardness and electrical conductivity of aluminum composite reinforced with nano alumina based on response surface methodology

Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite

Multi-Objective Optimization of WEDM of Aluminum Hybrid Composites Using AHP and Genetic Algorithm

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Effect of Heat Treatment on Mechanical properties of Aluminium metal matrix composite (AA6061/MoS2)

Cited by 13 publications

References 37 publications

Prediction and optimization of heat treatment effects on hardness and electrical conductivity of aluminum composite reinforced with nano alumina based on response surface methodology

Prediction and optimization of heat treatment effects on hardness and electrical conductivity of aluminum composite reinforced with nano alumina based on response surface methodology

Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite

Multi-Objective Optimization of WEDM of Aluminum Hybrid Composites Using AHP and Genetic Algorithm

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Effect of Heat Treatment on Mechanical properties of Aluminium metal matrix composite (AA6061/MoS₂)