Study on Abrasion Wear behaviour of Hybrid Composites using dimensional Analysis and Wear Models

Abstract

The prediction of abrasive wear behavior of Glass-Basalt (GB) and Glass -Carbon (GC) hybrid composites in two body wear mode using dimensional analysis has been presented. The blend (PA66/PTFE) in 80/20 wt. % proportion was used as the base material. The individual effect of glass fibers and carbon fibers (10 wt. % each) were also studied and compared. Melt mix method using twin screw extrusion and injection molding process were used for developing hybrid composites. The mathematical model to predict the wear loss has been developed using dimensional analysis for the aforesaid hybrid composites and evaluated through justification using experimentally determined wear loss. Further, the wear behavior due to two body abrasion of hybrid composites is justified using abrasive wear models. It is noticed that developed mathematical model and wear models agrees with the abrasion wear behavior of composites studied. It is noticed that Ratner -Lancaster factor (σε) was used as one variable for the abrasion wear model. It is proved that specific wear rate is indirectly proportional to the wear resistance. Furthermore, the individual effect of short fibers is compared with GB and GC hybrid composites. It is proved that hybrid composites exhibited the better wear resistance.