Investigations on Mechanical Behaviour of Micro B4C Particles Reinforced Al6061 Alloy Metal Composites

Kumar, H. D.; Kempaiah, U N; Nagaral, Madeva; Revanna, K

doi:10.17485/ijst/v14i22.736

Cited by 17 publications

(4 citation statements)

References 19 publications

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“…% of B 4 C composites. The SEM micrographs obviously showed the solid interfacial holding of Al2030 network and B 4 C; this holding assists with moving the pivotal elastic load from grid to the B 4 C (12) . This hard molecule keeps away from the plastic progression of Al grid and subsequently upgrades the load carrying limit of Al2030 matrix.…”

Section: Ultimate Tensile and Yield Strengthmentioning

confidence: 88%

Microstructure, Tensile and Flexural Strength of Boron Carbide Particles Reinforced Al2030 Alloy Composites

Babu¹,

Saravanan²,

Raviprakash³

et al. 2021

IJST

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Objective: To synthesize and assess the mechanical behaviour of 12 wt. % of 80 to 90 micron sized B 4 C reinforced Al2030 alloy metal composites. Method: Al2030 alloy with 12 wt. % of B 4 C reinforced composites were developed by liquid melt stir cast method. These prepared composites were subjected to microstructural characterization by SEM, EDS and XRD. Mechanical properties like hardness, tensile and flexural strength were evaluated according to ASTM standards. Findings: Scanning electron micrograph of Al2030 alloy with 12 wt. % of B 4 C composites revealed the thorough distribution of boron carbide particles in the Al2030 matrix. EDS and X-ray diffractometer patterns confirmed the presence of boron carbide particles in the Al2030 alloy matrix. The addition of 12 wt. % of B 4 C particles enhanced the hardness by 74.8%, ultimate strength by 59.2%, yield strength by 64.8% and flexural strength by 44.2% with slight decrease in ductility. Novelty: Al2030 alloy is an aerospace grade aluminium alloy widely used for industrial applications. Advanced metal composites developed with the incorporation of 80 to 90 micron sized B 4 C particles in Al2030 alloy helps in weight reduction of aerospace components.

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Section: Ultimate Tensile and Yield Strengthmentioning

confidence: 88%

Microstructure, Tensile and Flexural Strength of Boron Carbide Particles Reinforced Al2030 Alloy Composites

Babu¹,

Saravanan²,

Raviprakash³

et al. 2021

IJST

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“…The first is the reinforcing phase, and the second is the matrix phase, which is typically an alloy of metals. The enhanced qualities of composites and the material properties that cannot be achieved by a single phase are both enhanced by combining the two phases [ 23,24]. In an effort to create MMCs with exceptional strength, researchers are devoting more time and energy to reinforcing development.…”

Section: Introductionmentioning

confidence: 99%

A review on constituents, applications and processing methods of metal matrix composites

S B Angadi,

Madeva Nagaral,

Nagaraj Namdev

et al. 2024

Int. J. Sci. Res. Arch.

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Metal matrix composites (MMCs) exhibit superior mechanical and wear resistant properties, allowing them to be deployed in a variety of manufacturing applications, including structural, automotive, aerospace domains etc. Aluminium as the matrix material has numerous applications due to its high strength-to-weight ratio. The inclusion of hard ceramic particles in aluminium alloys increases overall strength and wear-resistance. It is important to know about different constituents of composite materials. In the present review paper an attempt has been made to highlight important constituents of metal matrix composites and their applications. Also, this review paper covers the various manufacturing techniques of metal composites.

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“…The authors concluded that the wear and friction being system dependent phenomenon were found to be influenced by parameters like reinforcement, method of processing composite, different phases in microstructure, stress level, relative speeds, contact condition and system generated in situ tribolayer. Kumar et al (20) Chartersied physical, mechanical and tribological response of Al 6061 composite with particulated nano sized ZrO 2. The wear results showed that addition of nano sized ZrO 2 particles improved wear response.…”

Section: Introductionmentioning

confidence: 99%

Influence of Change in the Apparent Contact Area, Temperature and Vacuum on Tribo Response of Al6061 and EN8 Pair

Vinay¹,

Ranganatha²,

Nagaral³

2021

IJST

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Objective: Aluminium and its alloys components are used in aero and space industries where in many cases trioboloading prevails. In space application, in addition to triboloading, the components should also perform in the absence of atmosphere. In the present investigation, attempted has been made to simulate the field conditions in the laboratory by sliding Al6061 alloy pin of different diameters in a vacuum at different temperatures using a vertically configured pin-on-disc test rig. Method: The pin diameters were 2, 4, and 6mm and the testing temperatures were 373, 473, and 573K. The normal contact pressure was 0.625MPa and the sliding speed was 0.5ms-1 and both were constant throughout the experiment. The coefficient of friction was monitored using a PC and the worn pin surface was studied in scanning-electronmicroscope. Findings: The result showed that the coefficient of friction at sliding temperatures 373 and 473K was found to be dependent on apparent contact area i.e., pin diameters 2, 4, and 6mm. The coefficient of friction was found to be 3.27 and 2.69 for pin diameter 2mm at temperature 373 and 473K whereas the coefficient of friction was of the range 1.36 to 0.33 for the pin of diameter 4 and 6mm. The scanning-electron-microscopic study revealed uniform plastic deformation for pin diameter of 2mm and non-uniform plastic deformation accompanied with abrasion extrusion phenomenon for the pin of diameters 4 and 6mm. The coefficient of friction at sliding temperature 573K was found to be insensitive to the apparent contact area. The coefficient of friction was in the range of 1.24 to 2.30. The SEM study revealed a large scale of non-uniform plastic deformation accompanied by abrasion, tearing of ridges, extrusion of both ridges, and entrapped wear debris. Novelty: It is a generic study for understanding the response of aluminium for tribo loading which.

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Investigations on Mechanical Behaviour of Micro B4C Particles Reinforced Al6061 Alloy Metal Composites

Cited by 17 publications

References 19 publications

Microstructure, Tensile and Flexural Strength of Boron Carbide Particles Reinforced Al2030 Alloy Composites

Microstructure, Tensile and Flexural Strength of Boron Carbide Particles Reinforced Al2030 Alloy Composites

A review on constituents, applications and processing methods of metal matrix composites

Influence of Change in the Apparent Contact Area, Temperature and Vacuum on Tribo Response of Al6061 and EN8 Pair

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