Investigation on the dry sliding friction and wear behavior of AA6351-SiC-B₄C hybrid metal matrix composites

Abstract

In the present study, the effect of wear test parameters on dry sliding wear behavior of aluminum matrix alloy (AA6351) with 5 wt% silicon carbide and 5 wt% boron carbide-reinforced hybrid metal matrix composites was investigated. Wear performance of the hybrid composites was evaluated over an applied load range of 20-100 N and sliding velocities ranging from 1 to 5 m/s. The experimental results show that the hybrid composites retain the wear resistance properties up to load of 60 N and sliding velocities ranges 1-3 m/s. Metallurgical examinations were also carried out to assess the effect of silicon carbide and boron carbide particles on the wear mechanisms. The enhancement of wear resistance was achieved with the addition of small amount of silicon carbide and boron carbide reinforcement particles with aluminum matrix alloy.

Enhancing the geometric tolerance of aluminium hybrid metal matrix composite using EDM process

“…Moreover, the mechanical and thermal properties of AMMCs are augmented with the accumulation of particulate reinforcement such as B 4 C, SiC, TiC, Al 2 O 3 , Si 3 N 4 and ZrB 2 and, furthermore, by accretion of secondary particulate reinforcement such as Al 2 O 3 , graphite and BN. The tribological properties of AMMCs were distended [5]. By addition of more than one particulate reinforcement in AMMCs is known as aluminium hybrid metal matrix composites (AHMMCs).…”

Electrical Discharge Machining of Al(6351)–SiC–B4C Hybrid Composite

“…The reinforcement particles were also preheated at higher temperatures around 1000 C to 1200 C to oxidize their surfaces [14]. The average sizes of the SiC and B 4 C particles were found to be 69 and 149 mm, respectively.…”

Effect of Gr Contents on Wear Properties of Al2024/MgO/Al2O3/Gr Hybrid Composites

“…B4C on the wear performance and mechanical properties of Al 7075-B4C composites were investigated by Baradeswaran and Elaya Perumal. They observed that increasing B4C particles increase the wear performance of the composites when compared to the matrix alloy [9].…”