Effect of Marble Dust as Filler on Erosion Behaviour of Needle-punched-nonwoven Jute/Epoxy Composite

In current work, solid-particle erosion wear of the needle-punched-nonwoven jute felt epoxy (NPNWJ/E) composite filled with waste marble powder (MP) particulates is investigated. The composites are fabricated in controlled condition using vacuum-assisted-resin-transfer-molding (VARTM) technique with 0, 10 20, and 30wt. % of waste marble powder. The influence of test parameters: velocity (30-60 m/s), impingement angle (30°- 90°) and erodent size (75-180 μm) are studied using air jet erosion test rig. The experiments are performed using orthogonal array L16 (45) and prominent control factors affecting the erosion rate were determined using ANOVA. The study reveals that the increasing content of marble dust in composite reduces the erosion wear rate. The maximum erosion rate is recorded at 60° impingement angle and shows the semi ductile behavior. Surface analysis of the eroded samples is performed through a scanning electron microscope (SEM) to understand the erosion mechanism meticulously of the particulate filled composites. The eroded surfaces resulting from air-jet erosion were analyzed using scanning electron microscope (SEM) for greater understanding of erosion mechanism meticulously of the particulate filled composites.