Erosion-corrosion Behavior of Aluminum 7075 based SiC Reinforced Nanocomposites
Adil Ahmed.S1, P.L.Srinivasa Murthy2

1Adil Ahmed.S, Department of Mechanical Engineering, Islamia Institute of Technology, Bangalore, India.
2P.L.Srinivasa Murthy, Department of Mechanical Engineering, Ramaiah Institute of Technology, Bangalore, India.

Manuscript received on 013 August 2019. | Revised Manuscript received on 19 August 2019. | Manuscript published on 30 September 2019. | PP: 4794-4803 | Volume-8 Issue-3 September 2019 | Retrieval Number: C6865098319/2019©BEIESP | DOI: 10.35940/ijrte.C6865.098319
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Abstract: In present study corrosion studies were conducted on Al7075/SiC nanocomposites processed by powder metallurgy and stir casting techniques. The weight percentage of SiC nanoparticles was varied from 1% to 4% for preparing the nanocomposites. The erosion-corrosion studies were conducted by means of slurry pot experiment under simulated marine environment of 3.5% NaCl. The weight losses of Al7075 alloy and its nanocomposites under various experimental conditions. The studies have been performed at the specimens through using distinct sand concentrations (10-40%) varying rotational/slurry speed (500-1500rpm) and ranging impinging particle (100-600microns) respectively. Powder metallurgy processed nanocomposites showed higher weight loss when compared to those processed using cast route. Worn-out surface analysis using scanning electron microscopy revealed ploughing, abrasion and fracture as the main erosion mechanisms for all materials processed using both the processing techniques.
Index terms: Nanocomposites; Powder Metallurgy; Stir Casting; Erosion-Corrosion.

Scope of the Article: