Dry Sliding Wear Behavior of B4C and Graphite Particulates Reinforced A356 Alloy Composites

Abstract

The present works manages readiness of the composites by mix stirring method. A356 amalgam 4 wt. % of B4C and A356-4 wt. % of Graphite and A356-4% B4C-4% Graphite hybrid composites were readied. To enhance the wetting and uniform conveyance of the particles, fortifications were preheated to a temperature of 500 Degree Celsius. The arranged MMCs are subjected to examining SEM instrument which affirms the homogenous uniform appropriation of smaller scale B4C and Graphite particles in the lattice combination without agglomeration. The wear protection of arranged composites was examined by performing dry sliding wear test utilizing DUCOM made stick on plate mechanical assembly. The tests were directed at a consistent heap of 3kg and sliding separation of 4000m over a speed of 100, 200 and 300 rpm. So also the other arrangement of investigations were led at consistent sped of 300 rpm and sliding separation of 4000m and with changing heap of 1kg, 2kg, and 3kg. The outcomes demonstrated that the wear protections of the composites were improved than the lattice material.

Impact of boron carbide and graphite dual particulates addition on wear behavior of A356 alloy metal matrix composites

“…In all the three varying parameters A356-4 wt% Gr. Composite has better wear resistance when compared to as cast A356 alloy and A356-4 wt% B4C, this is because of soft nature of Graphite which decreases wear [18]. Also wear resistance of A356-4 wt% B4C composite is better compared to A356 base alloy because of hard nature of reinforcing B4C particulate [19].…”

Mechanical characterization and wear behavior of aerospace alloy AA2124 and micro B4C reinforced metal composites

“…Additionally, as sliding speed is kept increasing there is increase in wear loss also because of softening of the composite at increased temperature due to rubbing action. The increase in temperature resulting due to higher sliding speeds also leads to plastic deformation of the test piece [20]. Therefore, there is increased delamination contributing to enhanced wear loss.…”

Preparation and investigation of mechanical behavior and characterization of AA7475/ZrO2/Gr hybrid MMC

“…Prashanth A N et al [16] investigated the structure and dry sliding friction characteristics of AA7475 alloy-37-micron-sized B4C particle-enhanced composites. Kumar R et al [17] investigated the aerospace application of AA7075 alloy reinforced with nano graphite and ZrO 2 HMMC to study the worn surface analysis and mechanical fractography.…”