Preparation of Co–Gr Nanocomposites and Analysis of Their Tribological and Corrosion Characteristics

Raghav, G R; Balaji, A.; Muthukrishnan, D.; Sruthi, V.

doi:10.15407/mfint.40.07.0979

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…The wear test has been reapeated for a few applied loads (10, 20, and 30 N). The sliding distances have been varied in the range1000-2000 m and sliding speeds 1, 1.5, and 2 m/s, respectively [26][27][28].…”

Section: Wear Analysismentioning

confidence: 99%

Investigation of Mechanical, Wear, and Corrosion Properties of Al–BN–SiC–RHA Hybrid Composites Synthesized Through Powder Metallurgy Process

Raghav¹,

Krishnan²,

Nagarajan³

et al. 2022

Metallofiz. Noveishie Tekhnol.

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Present study explores the effect of Rice Husk Ash (RHA) reinforcements in mechanically alloyed Al-BN-SiC hybrid composites through experimental characterization. The physical, tribological and corrosion resistance properties of Al-BN-SiC-RHA hybrid composites are studied. In the outset the composite pellets are synthesized using powder metallurgy process. The homogenously amalgamated composite powders are then squeezed together to form multiple green composite pellets each measuring 8 mm in diameter using a hydraulic press at a pressure of 500 MPa. The Al-BN-SiC-RHA hybrid composites are characterized using FE-SEM, EDS, and XRD analysis for facilitating the studies on the microstructural as well as the elemental properties. Microhardness and compressive strength of the Al-5BN-5SiC-5RHA hybrid composites is found to improve by 6 and 13.6% respectively compared to those of Al-5BN-5SiC hybrid composites. The RHA reinforced hybrid composites have also experienced reduction in density and an enhancement in the wear resistance of the composite materials while compared to those for their non-RHA counterparts. The electrochemical corrosion analysis of the Al-5BN-5SiC-5RHA hybrid composites also confirms that the Al-5BN-5SiC-5RHA hybrid composites have better corrosion resistance.

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Section: Wear Analysismentioning

confidence: 99%

Investigation of Mechanical, Wear, and Corrosion Properties of Al–BN–SiC–RHA Hybrid Composites Synthesized Through Powder Metallurgy Process

Raghav¹,

Krishnan²,

Nagarajan³

et al. 2022

Metallofiz. Noveishie Tekhnol.

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“…The corrosion analysis was performed at a scan rate of 1 mV s −1 . The electrochemical impedance spectroscopies (EIS) analyses for the composite pellets were performed at the range of 100 kHz to 100MHz and the initial sinusoidal voltage of 5mV [31][32][33][34].…”

Section: Electrochemical Corrosion Analysismentioning

confidence: 99%

Investigation on mechanical, wear and corrosion properties of Fe–Co–Cr–W–GNSA hybrid composites synthesized using powder metallurgy process

Raghav¹,

Muthukrishnan²,

Sundar³

et al. 2020

Eng. Res. Express

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In this work, mechanical wear and corrosion resistance properties of Fe-5Co-5Cr-5W-GNSA hybrid composites fabricated through powder metallurgy process were explored. The composite powders are compressed into an 8 mm diameter green pellets using a hydraulic press at a pressure of 500 MPa. The green compacts are then sintered at 950 °C for 2 h and cooled under furnace atmosphere. The microstructure and Mechanical Properties such as microhardness, compressive strength and density of the hybrid composites were investigated. The microhardness of the Fe-5Co-5Cr-5W-GNSA hybrid composites decreases with increase in GNSA reinforcement. The ground nut shell ash reinforcement also reduces the compressive strength and density of the composite materials. whereas, the wear analysis of the hybrid composites confirmed that the wear rate of the composite materials reduced proportionally with the increase in GHSA content. The electrochemical corrosion analysis also confirms that there is increase in corrosion resistance with increase in GNSA reinforcement.

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“…The results reveal that the mechanical properties and wear resistance of the steel substrate increases with the increase in thickness of the coating [21]. Though there are many fabrication processes for the synthesis of Fe based nanocomposites such as Stir casting, Physical vapor deposition and chemical vapor deposition, the powder metallurgy process is one of the most widely used methods due to its low cost and also due to the ability to produce homogenous composites with high mechanical properties compared to other methods [22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and mechanical characterization of Fe–BN–TiC nanocomposites

Raghav¹,

Kumar²,

Muthukrishnan³

et al. 2020

Eng. Res. Express

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This Work summarizes the effect of BN and TiC reinforcement on Fe based nanocomposites prepared using powder metallurgy process. The microstructure, mechanical properties and wear resistance of the BN, TiC reinforced Fe based nanocomposites were investigated. The composite materials were characterized using Scanning Electron Microscope (SEM), Atomic Force Microscope (AFM) and XRD. The results revealed that the addition of BN, TiC nanoparticles enhanced the microhardness and compressive strength of the composite materials compared to that of pure Fe, whereas the density of the composite materials has decreased considerably. The wear resistance of the Fe based nanocomposites showed betterment with addition of BN-TiC reinforcements compared to that of bare Fe.

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Preparation of Co–Gr Nanocomposites and Analysis of Their Tribological and Corrosion Characteristics

Cited by 9 publications

References 19 publications

Investigation of Mechanical, Wear, and Corrosion Properties of Al–BN–SiC–RHA Hybrid Composites Synthesized Through Powder Metallurgy Process

Investigation of Mechanical, Wear, and Corrosion Properties of Al–BN–SiC–RHA Hybrid Composites Synthesized Through Powder Metallurgy Process

Investigation on mechanical, wear and corrosion properties of Fe–Co–Cr–W–GNSA hybrid composites synthesized using powder metallurgy process

Synthesis and mechanical characterization of Fe–BN–TiC nanocomposites

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