Processing, Microstructure and Tensile Behavior of Nano B4C Particulates Reinforced Al2219 Alloy Composites

Shashidhar, S.; Kumar, P. Vijaya; Shantharaja, M.; Nagaral, Madeva; Shivananda, B.K.

doi:10.1016/j.matpr.2018.10.317

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…Cermet is the name given to the composite that is formed when various elements are mixed together in a matrix; ceramics are among the most common of these materials. Ti-C, TIN, Al2O3, AIN, BN, SiC, Si3N4, graphite, W, WC, B, TiB2, glass, ZrC2, and CaF2 are among the significant non-metallic particles [40,41].…”

Section: Particulatesmentioning

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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Section: Particulatesmentioning

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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“…It is identified that there is no uniform and correct dispersion of reinforcement in AA6061. Moreover, the literature states that the presence of hard surface area of B 4 C particles offers higher resistance to plastic deformation which in turn helps to increase the shear strength [23].…”

Section: Shear Testmentioning

confidence: 99%

Mechanical and tribological characteristics of boron carbide reinforcement of AA6061 matrix composite

Hynes¹,

Raja²,

Tharmaraj

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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The use of boron carbide-reinforced aluminium matrix composites has grown rapidly in critical applications of aerospace industries, automotive sectors, military, and nuclear engineering. However, boron carbide reinforcement within AA6061 alloy is worthy of investigation in terms of its mechanical and tribological properties. Novel aluminium matrix composites were developed with three different reinforcements (i.e. 5, 10, and 15 wt% of B 4 C) by using the stir casting process. The developed samples were then tested for performance in terms of mechanical properties (i.e. tensile strength, bending strength, impact strength, shear properties, and micro-hardness). The microstructure of the developed samples was analysed using a scanning electron microscope. By adding 5% B 4 C reinforcement, the samples display enhanced mechanical properties (high bending, increased resistance to impact test, and shear strength). The micro-hardness tends to increase by increasing the percentage of reinforcement. The novel composites have superior wear resistance due to an increase in the content of B 4 C particles. The measurements indicate that the wear rate resistance is significantly higher for the composite material with a large amount of B 4 C particles when was compared with AA6061 alloy. The patterns of surface analysis reveal a homogeneous distribution of ceramic reinforcements in 5 and 15 wt% of B 4 C samples, as well as a low agglomeration of embedded particles.

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“…After the addition of 9 wt% of boron carbide particles, it is found 203.7 MPa. The development in quality is credited on account of genuine contact between the matrix structure and materials [14]. Better the grain gauge better is the hardness and nature of composites provoking to upgrade the wear opposition additionally.…”

Section: Ultimate Tensile Strength and Yield Strengthmentioning

confidence: 99%

Mechanical characterization and wear behavior of aerospace alloy AA2124 and micro B4C reinforced metal composites

2020

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In the present investigation, the mechanical and wear properties of aerospace alloy AA2124-9 wt% of B4C composites were displayed. The composites containing 9 wt% of micro boron carbide in AA2124 alloy were synthesized by liquid metallurgy method through stir casting. For the composites, reinforcement particles were preheated to a temperature of 400℃ and afterward added in ventures of two stages into the vortex of liquid AA2124 alloy compound to improve the wettability and dispersion. Microstructural examination was carried out by SEM and elemental investigation was finished by EDS. Mechanical and wear properties of as cast AA2124 alloy and AA214-9 wt% of B4C composites were evaluated as per ASTM standards. Microstructural characterization by SEM and EDS confirmed the distribution and presence of micro boron carbide particles in the AA2124 alloy matrix. The hardness, ultimate strength, yield strength and bending behaviour of AA2124 alloy enhanced with the incorporation of 9 wt% of micro B4C particles. The hardness of as-cast AA2124 alloy was 65.76 BHN; it is 96.7 BHN in 9 wt% of B4C reinforced composites. The ultimate and yield strength of AA2124 alloy was 187.08 MPa and 150.33 MPa respectively. The enhanced UTS and YS in 9 wt% of B4C reinforced composites were 254.1 MPa and 203.7 MPa, respectively. Further, ductility of AA2124 alloy decreased with the presence of B4C particles. Wear resistance of aerospace alloy increased with the addition of micro particles. Tensile fractography and worn surface morphology were studied on the tested samples to know the various fractured and wear mechanisms.

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Processing, Microstructure and Tensile Behavior of Nano B4C Particulates Reinforced Al2219 Alloy Composites

Cited by 7 publications

References 13 publications

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

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

Mechanical and tribological characteristics of boron carbide reinforcement of AA6061 matrix composite

Mechanical characterization and wear behavior of aerospace alloy AA2124 and micro B4C reinforced metal composites

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