Abrupt advancement in technologies lead to growing thirst for efficient and economical alternative materials that possess superior properties. This lead to a gradual shift from the use of monolithic alloys to Metal Matrix Composites (MMCs). High resistance to corrosion and wear makes Aluminium MMC (AMMC) the most promising variant for...Read More

Thermally treated functionally graded aluminum hybrid composite is an innovative solution to the expanding mechanical and tribological needs of the marine industry. Through horizontal centrifugal casting, gradation of secondary (SiC) and primary (B4C) ceramics improves the reciprocal wear resistance of 6 wt%B4C/4 wt%SiC/A333 hybrid composite over 6 wt%B4C/A333 mono-composite and A333 alloy. Advanced characterization demonstrates the...Read More

Modern technology demands have raised the popularity of aluminum metal matrix composites (AMMCs) as it best suits diverse industrial applications. The need to develop an advanced functional material for specific applications attracts global researchers. Commercial needs for cost-effectiveness, quality improvement, superior performance and high strength to low weight ratio are...Read More

Functionally graded A333/6wt.%B4C/4wt.%ZrO2 hybrid composite manufactured through horizontal-centrifuge casting is subjected to statistical investigation focused on the parametric influences and interactions on wear responses–specific wear rate and coefficient of friction. Taguchi’s L27 orthogonal array design facilitates accurate trend analysis of factors against responses. Mathematical model development using Response Surface Methodology optimizes the...Read More

Hybrid ceramics in functionally graded aluminium hybrid composites are a developing choice for the maritime industries to maximize their daily mechanical and tribological demands. Ceramic types, including borides, oxides, and carbides, have a key impact in regulating the tribo-mechanical performance of hybrid composites. The external addition of Mg potentially lowered the wetting angle along...Read More

Aluminium hybrid functionally graded metal matrix composites (FGMMCs), meet growing demands for supreme tribo-mechanical performance in automotive and aviation industry. This research experimentally compares the influence of carbide ceramics (B4C, SiC, TiC) as reinforcements, in improving reciprocating tribology performance and mechanical strength of A333 hybrid composites against alloy. Hollow cylindrical samples of A333/6 wt%B4C/4 wt%TiC and A333/6 wt%B4C/4 wt%SiC hybrid FGMMCs were developed...Read More

This study comparatively investigates the rotational dry sliding wear behaviour of hybrid ceramic reinforced AA6082/3wt.%Boron Nitride (BN)/4wt.%Boron Carbide (B4C) stir cast composite against its alloy by varying weight percentage (2, 4 and 6 wt.%) of Corn Cob Ash. Maximum hardness (70.7 BHN) and impact strength (32 J) was identified at...Read More

Tribology and mechanical properties of thermal treated Al-9Si/10wt%SiC functionally graded composite are compared with as-cast condition. The composite was centrifugally cast as a hollow cylindrical component (Ø(outer) 100 × Ø(inner) 60 × 100 mm), characterized at three wall layers (up to 3, 10, and 18 mm) from the outer periphery. Metallographic analysis on as-cast...Read More

The tribological performance of functionally graded composites (FGCs) under abrasive and reciprocating test conditions are reviewed, from the numerous studies performed over the last three decades. FGCs produced differing wear analysis trends under varying process conditions and parameters. A general framework identifying the process parameters as well as assessing the wear performance...Read More

Dry sliding performance of Cu-11Ni-4Si/10wt.%Al2O3 graded composite was investigated statistically and experimentally using pin-on-disc wear tester. Microstructural analysis revealed maximum gradient concentration of ceramics towards the inner radial wall of developed composite. The wear analysis was based on Taguchi’s L27 orthogonal array and Regression models, at tribo-parameters (load-15, 25, 35 N, slide...Read More