Abrasive wear behavior of Ni–P coated Si3N4 reinforced Al6061 composites

Ramesh, C.S.; Keshavamurthy, R.; Pramod, S.; Koppad, Praveennath G.

doi:10.1016/j.jmatprotec.2011.03.015

Cited by 33 publications

(20 citation statements)

References 17 publications

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“…Aluminium matrix composites are well known for their light weight, wear resistance and high strength properties. Among the widely used micron size particulates to reinforce aluminium matrix were TiB 2 , TiC, Si 3 N 4 , SiC, Al 2 O 3 and B 4 C [1][2][3]. But since last couple of decades lot of research is going on reinforcing them with nanosize materials such as Al 2 O 3 , CNT and graphene [4,5].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Studies on Powder Metallurgy and Stir Cast Processed Al7075/SiC Nanocomposites

2019

ijeat

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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 corrosion studies were conducted by means of salt spray technique by following ASTM B117 standard in which samples were immersed in highly corrosive environment of 3.5% NaCl. The weight losses of Al7075 alloy and its nanocomposites showed that with the increase in test duration from 12 to 96 hours, the weight losses of all nanocomposites increased significantly. Powder metallurgy processed nanocomposites showed higher weight loss when compared to those processed using cast route. Corroded surface analysis revealed pitting corrosion as main corrosion mechanism for all materials processed using both the processing techniques. Overall for as cast materials the localized corrosion in form of micro-pits were observed while in case of powder metallurgy processed materials the corrosion was spread over entire surface

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Section: Introductionmentioning

confidence: 99%

Corrosion Studies on Powder Metallurgy and Stir Cast Processed Al7075/SiC Nanocomposites

2019

ijeat

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“…Carbon fibers are reported to have very high strength and modulus coupled with excelent lubricity and wear resistance [7]. Owing to these benefits it has been extensively used as reinforcements in discontinous form to develop metal matrix composites with imporoved toughness and tribological properties with reduced friction and wear [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Air Jet Erosion Wear Behaviour of Al6061-Carbon Fibre Rod Composites

Suryanarayana¹,

Hiriyannaiah

Gnanamurthy

et al. 2015

Tribology Online

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Today, in the world of materials the focus is on the development of metal matrix composites (MMC's), particularly aluminium based composites due to its widespread applications in aerospace and automobile industries. To develop light weight MMC's, carbon fibres in both continuous and dis-continuous forms are used as reinforcements. The processing and characterization of mechanical and adhesive wear behaviour of various composites are widely practiced by various researchers around the world. However, solid erosion wear of continuous carbon fibre reinforced MMC's has not yet been reported. In the light of the above, the present work focuses on characteristics of erosive behaviour of Al6061-carbon fibre rods composites developed by casting route. Carbon fibre rods of 4 mm and 6 mm diameters were surface sensitized to achieve electroless nickel coating followed by copper electroplating on the nickel coated rods and were used as the reinforcements to develop the composites. An air jet erosion rig made according to ASTM G76 standard configuration was used to conduct the tests. The effect of carbon fibre reinforcement, test duration and angle of impingement of the erodent on the erosion wear behaviour of the developed will be discussed at length.

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“…In addition the presence of aggressive corrosive media especially in industries such as slurry handling plants will accelerate the component wear leading to catastrophic failures [5]. Hence, serious attempts have been made by researchers to focus on the experimental determination of different modes of wear with regard to aluminum and its alloys under several operating conditions using standard test procedures [6][7][8][9]. However, these standard techniques for assessing their wear properties are sometimes complex and may not simulate the actual working operating conditions leading to spurious and unrealistic data.…”

Section: Introductionmentioning

confidence: 99%

Prediction of slurry erosive wear behaviour of Al6061 alloy using a fuzzy logic approach

Ramesh¹,

Jain²,

Keshavamurthy³

et al. 2013

Surface Effects and Contact Mechanics XI

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Slurry erosive wear as a failure mechanism has significance in terms of dictating the performance of marine components. Experimental determination of this wear phenomenon for various materials in current naval applications is tedious, expensive and, in the majority of cases, not reliable. The standard experimental procedures in assessing the slurry erosive wear do not simulate the actual operating conditions. Researchers have been focusing on predictions of wear behaviour based on several hypotheses and mathematical models as a response to overcome the above mentioned obstacles. The fuzzy logic approach is a highly reliable analytical technique and therefore widely accepted and used. This paper discusses a fuzzy logic model to predict the slurry erosive wear behavior of cast aluminum 6061 (Al 6061) alloy pre and post heat treatment. The adopted fuzzy model employs hybrid-learning techniques involving a combination of both back-propagation and least-square method. Sand concentration, test duration, slurry rotation speed and impinging particle sizes served as inputs while slurry erosive wear losses were the outputs. The predicted values have been compared with published experimental data under various operating conditions. The predicted values of slurry erosive wear loss of cast aluminum 6061 alloy pre and post heat treatment are in close agreement with the experimental results.

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Abrasive wear behavior of Ni–P coated Si3N4 reinforced Al6061 composites

Cited by 33 publications

References 17 publications

Corrosion Studies on Powder Metallurgy and Stir Cast Processed Al7075/SiC Nanocomposites

Corrosion Studies on Powder Metallurgy and Stir Cast Processed Al7075/SiC Nanocomposites

Air Jet Erosion Wear Behaviour of Al6061-Carbon Fibre Rod Composites

Prediction of slurry erosive wear behaviour of Al6061 alloy using a fuzzy logic approach

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