Microstructure and Evaluation of Mechanical Properties of Al-7Si-Fly Ash Composites

Nagaraj, N.; Mahendra, K. V.; Nagaral, Madeva

doi:10.1016/j.matpr.2018.01.116

Cited by 15 publications

(8 citation statements)

References 12 publications

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“…The expansion in UTS and YS is essentially because of solid holding between fortification particles and copper-zinc grid, plays an imperative role on the load exchanging from network to support. This is a result of grain refinement and molecule fortifying [14,15]. The upgrades of quality are influenced by the higher load bearing and confound fortifying caused by nano ZrO 2 particles.…”

Section: Hardness Measurementsmentioning

confidence: 99%

Characterization and Tensile Fractography of Nano ZrO2 Reinforced Copper-Zinc Alloy Composites

Nagaral

Nayak

Srinivas³

et al. 2019

Frattura Ed Integrità Strutturale

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Nano particulates fortified metal lattice composites are finding extensive variety of utilizations in car and sports hardware fabricating businesses. In the present investigation, an endeavor has been made to create copper-zinc-nano ZrO 2 particulates strengthened composites by utilizing fluid liquefy technique. 4, 8 and 12 wt. % of nano ZrO 2 particulates were added to the Cu-Zn base grid. Microstructural studies were finished by utilizing SEM and EDS examination. Mechanical behavior of Cu-Zn-4, 8, 12 wt. % of nano ZrO 2 composites were assessed according to ASTM benchmarks. Checking electron micrographs uncovered the uniform dispersion of nano ZrO 2 particulates in the copper zinc composite network. EDS examination affirmed the nearness of Zr and O components in nano ZrO2 strengthened composites. Further, it was noticed that hardness, UTS, yield quality of Cu-Zn composite expanded with the expansion of 4, 8 and 12 wt. % of nano ZrO 2 particulates. Ductility of nano composites was decreased by adding zirconium oxide particulates. Fractography of tensile specimens were carried out by using SEM micrographs to understand the failure mechanisms.

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Section: Hardness Measurementsmentioning

confidence: 99%

Characterization and Tensile Fractography of Nano ZrO2 Reinforced Copper-Zinc Alloy Composites

Nagaral

Nayak

Srinivas³

et al. 2019

Frattura Ed Integrità Strutturale

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“…The entire matrix alloy is melted at temperature of 750˚C, and then the degassing tablet known as solid hexa chlro ethane was added to the molten melt to remove all the unwanted slag content and volatile gases. At the drop of the temperature during the addition of C2Cl6 to the molten matrix [10], the Nano B 4 C particles are preheated to temperature of 600˚C to provide good bonding with the matrix phase and mechanical equipment's such zirconium coated stirrer, and the mold are also preheated at temperature of 350-400˚C to remove all the moisture content. Then the 2% weighted amount of Nano particulates was added in to the melt at a constant feed rate and the continuous vigorous stirring was done for about 10 minutes at stirring speed of 400rpm.…”

Section: Conduct Compression and Density Testsmentioning

confidence: 99%

Processing, microstructure, density and compression behaviour of nano B4C particulates reinforced Al2219 alloy composites

Shashidhar¹,

Kumar²,

Shivanand³

et al. 2018

IJATEE

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In the present situation, there is always a unremitting requirement for the weight and cost effective product designs to remain competitive all time, synthesis of composite materials and its improved material properties is always remained as best practical solution to convince market demand. In metallic materials, aluminum alloy is most preferred for research and development activities for its low density, economical, ease of accessibility and production, good interfacial bonding with reinforcements [1].The combination of one or more materials, with one being with matrix phase (Al, Zn, Mg, Ti etc) and other being reinforcement phase (SiC, B 4 C, TiC, Gr, Al203, etc.), the two phases having different physical properties are combined by different processing techniques to form a new material known as composites with improved mechanical and physical properties [2−4].

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“…Therefore, researchers are looking for other alternatives to reduce production costs while still maintaining their mechanical properties. One such alternative is to use natural materials that are readily available in nature, such as fly ash [9], natural rubber [10], natural fibres [11], and sea sand [12]. Using sea sand reduces the cost of aluminium goods and produces low-cost by products.…”

Section: Introductionmentioning

confidence: 99%

Studies of forging on the aluminium-sea sand composites

Fanai,

Akbar,

Surojo

et al. 2023

Eng. Res. Express

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The goal of this research was to determine the impact of cold forging on the mechanical characteristics and microstructure of Al MMCs at various sea sand percentages and forging deformations. The wettability of sea sand was improved by applying an electroless coating just before the stir-casting procedure. Using the stir casting technique, a composite material of Al6061 and sea sand was fabricated at several percentages of sea sand in weight, such as 2, 4, and 6%. In addition, open-die forging in cold settings was studied to learn more about the deformation characteristics of Al6061-sea sand composite. Composites were tested for density, porosity, microstructure, macrostructure, and hardness. The behaviour of microstructures was studied with an optical microscope. Brinell hardness readings taken according to ASTM E-10 were used to characterize the composite. The stir casting method was used to investigate and analyse the samples characteristics. More sea sand particles are distributed throughout the matrix as the composite’s density decreases. Increases in porosity are associated with an increase in reinforcement percentage, as this leads to more matrix-reinforcement surface contact and hence more porosity. The hardness diminishes with an increase in the proportion of sea sand particles. The mechanical qualities of the composite were enhanced by an oxide compound found on the sea sand. Evidence suggests that forging enhances mechanical and microstructure qualities.

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Microstructure and Evaluation of Mechanical Properties of Al-7Si-Fly Ash Composites

Cited by 15 publications

References 12 publications

Characterization and Tensile Fractography of Nano ZrO2 Reinforced Copper-Zinc Alloy Composites

Characterization and Tensile Fractography of Nano ZrO2 Reinforced Copper-Zinc Alloy Composites

Processing, microstructure, density and compression behaviour of nano B4C particulates reinforced Al2219 alloy composites

Studies of forging on the aluminium-sea sand composites

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