Flank and crater wear analysis during turning of Al 7075 based hybrid composites

Ajithkumar, J. P.; Xavior, M. Anthony

doi:10.1088/2053-1591/ab196e

Cited by 14 publications

(11 citation statements)

References 22 publications

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“…Aluminium 7075-T6 holds favourable properties such as reasonable strength to weight ratio, shear strength, tensile strength, fatigue strength etc. [1,2]. However, these property standards are not sufficient for specific structural applications.…”

Section: Matrix and Reinforcementsmentioning

confidence: 99%

“…The end properties of the composites depend on many factors like type, size, weight fraction of the reinforcement particles, bond between the matrix and reinforcement particles etc. Among the many types of matrix material, aluminium is one of the favourable materials for aerospace to automotive applications [1][2][3][4]. Nowadays researchers focus on nano-sized reinforcement particles due to their improved properties when compared to the micro-level particles [1,5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays researchers focus on nano-sized reinforcement particles due to their improved properties when compared to the micro-level particles [1,5,6]. However, many analyses have revealed that the agglomeration of nano particles degrade the mechanical properties as well as the microstructure of the nano-composites [2,7,8]. Micro or nano sized reinforcement particles were commonly used to change the hardness and tensile strength of the metal matrix composites [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical, microstructural and electrical properties of Al7075/SiC based hybrid composites with nano B⁴C, Graphene and CNT reinforcements

Ajithkumar

Xavior²

2022

J. Phys.: Conf. Ser.

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Superfluous properties of Graphene and CNT reinforced composites are making significant revolution in the application area of metal matrix nano-composites. Fabrication of these composites without any flaw is the challenging task due to its inherent properties such as limited wettability, unique structure, load transfer efficiency, shape and size. The individual reinforcements such as 0.1wt.% B4C, 0.1wt.% Graphene and 0.1wt.% CNT were successfully incorporated in common Al7075/10wt.% SiC base through squeeze casting method combined with ultrasonic vibration. The influence of reinforcements on the mechanical, metallurgical and electrical properties of the composites was analysed in this study. The hardness value of the B4C-based, Graphene-based and CNT-based composites has enhanced to 167 BHN, 145 BHN and 135 BHN respectively from the base matrix. Tensile strength has also improved to 239 MPa, 324 MPa and 308 MPa. In the case of micro-structural characteristics, the addition of Graphene in the Graphene reinforced composite improved the grain structure due to the grain refining effect followed by the CNT and B4C reinforced composites with the similar weight fraction and processing methods. The influence of various reinforcements was analysed using Optical Microscope (OM), Scanning Electron Microscope (SEM) and Energy-Dispersive X-ray analysis (EDX) techniques. Addition of Graphene and CNT increased the electrical conductivity of respective composites to 24.2 MS/m and 21.1 MS/m.

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Section: Matrix and Reinforcementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanical, microstructural and electrical properties of Al7075/SiC based hybrid composites with nano B⁴C, Graphene and CNT reinforcements

Ajithkumar

Xavior²

2022

J. Phys.: Conf. Ser.

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“…e swirling motion of the particles in the stir casting process enhances the chemical interactions between the matrix and reinforcing particles [19]. Experimental data on microhardness, impact strength, elongation percentage, and tensile strength of stir-cast hybrid metal matrix composites were collected [20].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Behavior and Microstructure Analysis of AA7075/SiC/B4C-Based Aluminium Hybrid Composites

Mahmoud

Satishkumar

Rao

et al. 2022

Advances in Materials Science and Engineering

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The microstructure and mechanical properties of an MMC based on AA 7075 and strengthened through silicon carbide (SiC) as well as boron carbide (B4C) elements were studied. The (SiC + B4C) combination was used in various weight percentages of 4, 8, 12, and 16% to create the hybrid composites utilizing the traditional stir casting procedure. XRD and SEM measurements were used to investigate the dispersion of the reinforced particles. For example, microhardness, impact strength, and ultimate tensile strength were measured on hybrid composites at room temperature. The density and porosity of the materials were also studied. The researchers found that increasing the weight percentage of the (SiC + B4C) mixture resulted in a small drop in % elongation. However, hybrid composites comprising 16% (SiC + B4C) weight reduction showed some decrease in hardness and tensile strength. Equated to unreinforced alloys, the hardness and tensile strength of hybrid composites rise by 8% and 21%, respectively. Reinforcement also resulted in a decrease in impact strength and density, as well as an increase in porosity.

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“…The machinability of composites primarily depends on numerous parameters such as type of machine, cutting tool, machining process parameters, reinforcement type, weight % of reinforcement, size of the reinforcing particles, distribution of reinforcements, cutting fluid and type of coolant [12,15,16,18,19]. Nearly one-fourth of the total machining cost is accompanying the machining tool, and one-fifth machine downtime happens owing to the failure of the cutting tool [18]. Moreover, in specific applications, the cost of cutting fluid is around 20% of the total cost of machining [16].…”

Section: Introductionmentioning

confidence: 99%

Microstructure, mechanical properties and machinability studies of Al7075/SiC/h-BN hybrid nanocomposite fabricated via ultrasonic-assisted squeeze casting

Soni¹,

Thomas²

2020

FME Transactions

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The present research article deals with the microstructure, mechanical properties and machinability investigation of squeeze-cast Al7075 and Al7075/SiC/h-BN hybrid nanocomposite. The Al7075 alloy nanocomposite has been reinforced by micro-size SiC (1 wt.%) particles and h-BN (0.5 wt.%) nanoparticles, prepared via ultrasonic-assisted melt-stirring approach. In order to achieve the better mixing of reinforcements, diminish the agglomeration effect of nanoparticles and improved wettability of the particles in the melt, SiC and h-BN powders have been ball-milled for the duration of 4 h. The microstructural investigation of the prepared nanocomposite was carried out by using optical microscopy (OM), scanning electron microscopy (SEM) and x-ray mapping analysis. The xray mapping and optical microscopic analysis show good dispersion uniformity of reinforcements and refinement in the grain sizes. The investigation of mechanical properties of hybrid nanocomposite shows the significant improvement of about 35.33 %, 21.69 %, 13.87 % and 12.27 % in the offset yield strength, ultimate tensile strength, Rockwell hardness and microhardness (Vickers), respectively. Furthermore, the machinability analysis has been performed to examine the influence of several machining parameters such as cutting speed, feed rate and depth of cut on the surface roughness, cutting force and chips length of the squeeze-cast hybrid nanocomposites under dry and minimum quantity lubrication (MQL) machining conditions. The outcomes of the machinability analysis for hybrid nanocomposites are compared with the Al7075 specimen and discussed.

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Flank and crater wear analysis during turning of Al 7075 based hybrid composites

Cited by 14 publications

References 22 publications

Mechanical, microstructural and electrical properties of Al7075/SiC based hybrid composites with nano B⁴C, Graphene and CNT reinforcements

Mechanical, microstructural and electrical properties of Al7075/SiC based hybrid composites with nano B⁴C, Graphene and CNT reinforcements

Investigation of Mechanical Behavior and Microstructure Analysis of AA7075/SiC/B4C-Based Aluminium Hybrid Composites

Microstructure, mechanical properties and machinability studies of Al7075/SiC/h-BN hybrid nanocomposite fabricated via ultrasonic-assisted squeeze casting

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Flank and crater wear analysis during turning of Al 7075 based hybrid composites

Cited by 14 publications

References 22 publications

Mechanical, microstructural and electrical properties of Al7075/SiC based hybrid composites with nano B4C, Graphene and CNT reinforcements

Mechanical, microstructural and electrical properties of Al7075/SiC based hybrid composites with nano B4C, Graphene and CNT reinforcements

Investigation of Mechanical Behavior and Microstructure Analysis of AA7075/SiC/B4C-Based Aluminium Hybrid Composites

Microstructure, mechanical properties and machinability studies of Al7075/SiC/h-BN hybrid nanocomposite fabricated via ultrasonic-assisted squeeze casting

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Product

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Mechanical, microstructural and electrical properties of Al7075/SiC based hybrid composites with nano B⁴C, Graphene and CNT reinforcements

Mechanical, microstructural and electrical properties of Al7075/SiC based hybrid composites with nano B⁴C, Graphene and CNT reinforcements