Author
S. Karthikeyan
Bio: S. Karthikeyan is an academic researcher. The author has contributed to research in topics: Composite number & Ceramic. The author has an hindex of 1, co-authored 1 publications receiving 7 citations.
Papers
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01 Nov 2010
Abstract: Composite material technology has been developed to explore the best advantage of metallic and ceramic material characteristics. Among the various processing route, flex assisted synthesis is a highly potential and low cost method to produce in-situ composites. In-situ aluminum matrix composite has superior performance than the ex-situ composite because of the chemically dispersed reinforcements. In the present work, flex assisted synthesis process is to produce AA2219 — TiB 2 /ZrB 2 in-situ aluminum matrix composite with the different reinforcement ratio. EDAX, SEM and micro hardness analysis was carried out to confirm the presence reinforcements. EDAX analysis confirms the presence of reinforcement and element percentage of the composites. Microstructure analysis shows the distribution of in-situ reinforcements and the CuAl 2 formation in the grain boundary regions of the matrix. Increase in hardness observed in the composites than the AA2219 matrix, reveals the presence of the reinforcement.
7 citations
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TL;DR: The Young's modulus of aluminum-based materials is one of the most important mechanical properties in controlling structural performance as mentioned in this paper, and the improvement of the Youngs modulus has been shown to improve the structural performance of castable aluminum.
Abstract: The Young’s modulus of aluminum-based materials is one of the most important mechanical properties in controlling structural performance. The improvement of the Young’s modulus of castable aluminum...
26 citations
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TL;DR: In this article, the influence of machining parameter on cutting force and surface roughness in turning of AA2219-TiB 2 /ZrB 2 in-situ metal composites was studied.
19 citations
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TL;DR: In this paper, the effect of speed, feed rate, drill bit diameter and point angle on surface roughness and delamination in drilling the AA2219 - TiB2/ZrB2 in-situ aluminum matrix composite with the different reinforcement ratio was investigated.
14 citations
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01 Jul 20185 citations
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27 Feb 2019TL;DR: In this paper, a Hybrid Metal Matrix Composite (HMMC) with Aluminium Alloy AA2219 reinforced with various weight fractions of Silicon Carbide (SiC), Aluminium Oxide (Al2O3), and Wollastonite (CaSiO3) in varying proportions to achieve better wear properties and weight reduction for applications like cast iron disc brake rotor.
Abstract: Composite materials are extensively being employed in the aerospace and automobile industries where they could have replaced conventional materials owing to their high strength/weight ratio. In this direction, research has been vigorous to help turn out composite materials of superior quality with enhanced capabilities. Hence, this paper presents an attempt at fabricating a Hybrid Metal Matrix Composite (HMMC) with Aluminium Alloy AA2219 reinforced with various weight fractions of Silicon Carbide (SiC), Aluminium Oxide (Al2O3) and Wollastonite (CaSiO3) in varying proportions to achieve better wear properties and weight reduction for applications like cast iron disc brake rotor. A two-step Stir Casting process is selected to prepare the composites. Standard Orthogonal Array is used to determine the number of experiments that need to be conducted in order to study the impact of the reinforcement materials using interaction effect plots. Pin-on-Disc wear tests and hardness tests were carried out on all the samples and the effect of the reinforcements studied from the test data. SEM is carried out on the composition with the best wear behaviour.
4 citations