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...

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A review on high stiffness aluminum-based composites and bimetallics

https://cyberleninka.org/article/n/1136382.pdf

Influence of Process Parameters on Cutting Force and Surface Roughness During Turning of AA2219-TiB2/ZrB2 In-situ Metal Matrix Composites

https://cyberleninka.org/article/n/1110666.pdf

Experimental Investigation on Drilling of AA2219-TiB2/ZrB2 In-situ Metal Matrix Composites

https://robots.iopscience.iop.org/article/10.1088/1757-899X/390/1/012099/pdf

Optimization of machining parameters using Entropy-VIKOR method in drilling of A356-TiB2/TiC in-situ composites

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.

https://iopscience.iop.org/article/10.1088/2053-1591/ab0579/pdf

Tribological study on hybrid metal matrix composites for application in automotive sector

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.

Synthesis, quantitative elemental analysis, microstructure characteristics and micro hardness analysis of AA2219 aluminum alloy matrix composite reinforced by in-situ TiB 2 and sub-micron ZrB 2 particles

A. Karthik

Papers

Synthesis, quantitative elemental analysis, microstructure characteristics and micro hardness analysis of AA2219 aluminum alloy matrix composite reinforced by in-situ TiB 2 and sub-micron ZrB 2 particles