Functionally graded materials (FGMs) revealed an immense growth with world-wide demand. This paper details a critical review on the periodic transformation in FGM production technologies and influence of thermal treatment on the physical, structural and manufacturing characteristics of FGMs. Popular alloys and ceramics utilized for FGM manufacturing are identified and classified...Read More

This research compares the reciprocating tribo-mechanical behaviour of functionally graded A333 (Al-9Si-3Cu) alloy, Al-9Si-3Cu/6wt%B4C mono-composite and Al-9Si-3Cu/6wt%B4C/4wt%TiB2 hybrid-composite. Cylindrical test samples of both alloy and composites were horizontal centrifuge cast. Metallography of alloy revealed grain refinement and throughout presence of B4C particles along the cross-section of both functionally graded composites. Whereas,...Read More

The functional grade composite Cu-11Ni-4Si/10wt.%TiC along with Cu-11Ni-4Si alloy was stir cast, followed by horizontal-centrifuge cast technique. Cast sample was prepared at a dimension Fout100 x Fin85 x 100 mm. A comparative analysis for non-lubricated slide tribology at inner wall zone (1-5 mm), middle wall zone (5-10 mm) and outer...Read More

Functionally graded Cu-10Sn-5Ni/10B4C composite was fabricated using horizontal centrifugal casting. Microstructural and mechanical properties were superior at reinforcement-rich inner zone where wear tests were conducted based on response surface methodology five-level run order, using pin on disc tribometer. Results showed that wear rate increases linearly with increase in load and...Read More

LM25 aluminum alloy reinforced with 10 wt% of TiB2, WC, and ZrO2 were squeeze cast to investigate the effect of T6 heat treatment on tribo-mechanical properties. Among all, WC-reinforced composite achieved superior mechanical properties at the aging time of 8 h. Microstructural examination performed on all composites and alloy concluded that the presence...Read More

Non lubricated slide performance of functional grade copper matrix composite, fabricated using horizontal centrifuge cast technique was investigated using pin-on-disc tribo-tester. Rate of wear and friction coefficient of the inner wall thickness of hollow cylindrical cast specimen was analyzed using Taguchi based L27 orthogonal array, where the percentage of graphite particles...Read More

This research aims to fabricate Cu-10Sn-5Ni /10wt%TiC functionally graded composite (Øout100 X Øin70 X 100 mm) through horizontal centrifuge cast technique and to study its tribo-mechanical characteristics. Microstructural observation revealed higher percentile of reinforcement particles at inner wall zone compared to middle and outer zones. Vicker’s micro hardness tests revealed...Read More

This research analyses physical and anti-wear properties of a functional grade Cu–Ni–Si/TiC, manufactured using horizontal- centrifuge cast process. The microstructural analysis conducted radially at wall thicknesses 1, 8 and 13 mm from outer, showed an increasing gradient of particle distribution providing 41% improved hardness at the inner p eriphery and...Read More

The functionally graded composite Cu-10Sn-5Ni/10 wt% B4C and its alloy, was manufactured (Φout100 × Φin85 × 100 mm) by stir casting route utilizing horizontal centrifuge cast technique. A comparative dry sliding tribological analysis was performed for interior (1–5 mm), intermediate (5–10 mm) and exterior (10–14 mm) zones of both composite and alloy, using pin-on-disc...Read More

Functionally graded LM14 Al/12Si3N4/3Gr hybrid composite was developed through horizontal centrifugal casting with a wall thickness of 15 mm. Mechanical analysis like Vickers hardness (27%) and tensile strength (3%) were observed superior at Si3N4 rich outer zone than Gr rich inner zone. Rate of wear of Gr rich inner specimen (8–13...Read More