Effect of Nano-TiO$_2$ Particles on Wear and Corrosion Behaviour of AA6063 Surface Composite Fabricated by Friction Stir Processing

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

doi:10.15407/mfint.40.03.0397

Cited by 7 publications

(4 citation statements)

References 21 publications

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“…The polarization test was carried out at speci ed rate of 1mVs − 1 . [16, 17,18] 3. Results & Discussions Figure 4b shows the absence of voids in the microstructure and the distribution of SiC particles throughout the matrix is uniform.…”

Section: Methodsmentioning

confidence: 99%

Experimental Investigations on the Mechanical Properties, Microstructure and Corrosion Resistance of Cu-20Al-4Ni/SiC Composites Synthesized Using Powder Metallurgy

Azaath

Natarajan

Veerappan³

et al. 2021

Preprint

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The present investigation pertains to synthesize aluminium bronze silicon carbide composite by powder metallurgy route. Three various weight percentages of silicon carbide (0, 2, 4 & 6) were reinforced with aluminium bronze matrix (Cu-20%Al-4%Ni) and the hydraulic press was used to prepare the green compact. This compact was heated at two different temperatures such as 6500C and 7500C using tubular furnace. The effect of silicon carbide on density, sinterability, compression test and hardness test was analyzed. The scanning electron microscope and energy dispersive spectroscopy were used to confirm the presence of alloying elements. The results showed that the sinterability and density were reduced with an increase in silicon carbide content. The composite reinforced with 6%SiC exhibited lowest compressive strength among other composites. The 4 wt.% SiC reinforced composites sintered at 7500C has highest corrosion resistance.

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Section: Methodsmentioning

confidence: 99%

Experimental Investigations on the Mechanical Properties, Microstructure and Corrosion Resistance of Cu-20Al-4Ni/SiC Composites Synthesized Using Powder Metallurgy

Azaath

Natarajan

Veerappan³

et al. 2021

Preprint

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“…A scan rate of 1 mV/s is maintained throughout the experiment. The Electrochemical Impedance Spectroscopy (EIS) test for the Al-5BN-5SiC-RHA hybrid nanocomposites are accomplished at the range of 100 kHz to 100 MHz and at the voltage of 5 mV [25,29,30].…”

Section: Electrochemical Corrosion 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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“…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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Effect of Nano-TiO$_2$ Particles on Wear and Corrosion Behaviour of AA6063 Surface Composite Fabricated by Friction Stir Processing

Cited by 7 publications

References 21 publications

Experimental Investigations on the Mechanical Properties, Microstructure and Corrosion Resistance of Cu-20Al-4Ni/SiC Composites Synthesized Using Powder Metallurgy

Experimental Investigations on the Mechanical Properties, Microstructure and Corrosion Resistance of Cu-20Al-4Ni/SiC Composites Synthesized Using Powder Metallurgy

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

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