Synthesis and Mechanical Characterization of Micro B4C  Particulates Reinforced AA2124 alloy Composites

The effect of nano-sized B4C particulates on the Zn85-Sn15 alloy has been investigated. Composites reinforced with B4C of (0%, 2%, 4% and 6%, by weight) are manufactured by two step stir casting. Microstructural studies carried out by SEM, EDS, and XRD and mechanical testing like tensile, hardness, and impact were performed on cast samples. The criteria for determining strength and fractography are met. EDS analysis confirms the homogeneous distribution of B4C particles in the Zn-Sn matrix seen in SEM micrographs. XRD examination revealed the B4C phases in the Zn-Sn alloy matrix as well. When B4C reinforcement is added to the basic matrix alloy, it improves its hardness and tensile strength with slight decrease in the ductility and impact strength. Further, tensile and impact fractured surfaces were studied to know the different fracture mechanisms.

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“…Fig. 8 shows the hardness of Zn-2, 4& 6, wt% of B4C composite is higher than Zn basis matrix in terms of percentage [17].…”

Section: Hardness Measurementsmentioning

confidence: 94%

Mechanical behavior and fractography analysis of Zn-Sn alloy matrix composites reinforced with nano B4C particles

Janamatti¹,

Algur²,

Nagaral³

et al. 2023

Res. Eng. Struct. Mater.

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Microstructural evolution and mechanical characterization of micro Al2O3 particles reinforced Al6061 alloy metal composites

Balaraj¹,

Kori²,

Nagaral³

et al. 2021

Materials Today: Proceedings

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Characterization of Born Carbide and Rice Husk Ash Reinforced Aluminum Alloy Composites

Muralimohan,

Kempaiah,

Veeresh Kumar

2024

Journal of Testing and Evaluation

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The remarkable characteristics of aluminum alloys, like their hardness, strength-to-weight ratio, fatigue, corrosion resistance, play a decisive role in the aeronautical and automotive industries. However, scientists are on the lookout for substantial advancements in the wear resistance of the composites under varied service situations. This investigation focuses on the characteristics of hybrid metal matrix composites with regards to optical, physical, mechanical, tribological, and corrosion behavior of ADC12 alloy reinforced by born carbide and rice husk ash (RHA) particulates. The liquid metallurgy process with the stir casting technique was used to produce the hybrid composites, which were then compared to monolithic materials. In the fabrication, reinforcement RHA was added from 0 to 12 % while maintaining a born carbide content of 5 %. Following ASTM standards, the resulting composites were put through optical, several physical, mechanical, wear, and corrosion testing. The experimental findings were then analyzed. With a rise in the amount of reinforcement in the base alloy, physical and mechanical characteristics greatly improved, whereas the percentage of elongation was seen to decline. The effects of exposure time were studied on the hybrid composites on corrosion behavior in acidic environments. The composites are exposed to the hydrochloric acid solution, and weight loss over various periods, from 12 to 72 h, is measured in steps of 12 h. It was discovered that the corrosion resistance increased as the reinforcing content increased. By using a pin-on-disc apparatus, the wear tests were conducted, and the outcomes indicated the composites’ superior wear resistance. Composites with a higher percentage of reinforcement displayed superior characteristics. Following the tensile testing, broken surfaces, wear, and corrosion morphology are examined in scanning electron microscope images. The research findings are thoroughly examined, and careful interpretations have been made.

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Synthesis and Mechanical Characterization of Micro B4C Particulates Reinforced AA2124 alloy Composites

Cited by 8 publications

References 12 publications

Mechanical behavior and fractography analysis of Zn-Sn alloy matrix composites reinforced with nano B4C particles

Mechanical behavior and fractography analysis of Zn-Sn alloy matrix composites reinforced with nano B4C particles

Microstructural evolution and mechanical characterization of micro Al2O3 particles reinforced Al6061 alloy metal composites

Characterization of Born Carbide and Rice Husk Ash Reinforced Aluminum Alloy Composites

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