Evaluation of Mechanical and Erosive wear Characte

Authors: Akant Kumar Singh Siddhartha Prabhaker Gupta Prashant Kumar Singh

Publish Date: 2016/08/31

Volume: 10, Issue: 2, Pages: 309-327

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Abstract

This article presents the evaluation of mechanical and erosive wear characteristics of bidirectional Eglass fiber based vinyl ester composites filled with TiO2 titanium oxide and ZnO zinc oxide of 10 wt and 20 wt respectively The mechanical characterization of these composites is performed The erosion rates of these composites have been evaluated at different impingement angles 30 ∘ 60 ∘ and 90 ∘ The particles used for the erosion measurements were silica sand with the diameters of 300 425 and 600 μm and impact velocities of 30 50 and 70 m/s were used A plan of experiments based on the Taguchi design was performed to acquire data in a controlled way An orthogonal array L27 3 13 and Analysis of variance ANOVA have been applied to investigate the influence of process parameters on the erosive wear behaviour of these composites The tensile strength of composite specimens is found to decrease with filler loading while hardness flexural strength interlaminar shear strength ILSS and impact strength increase TiO2 filled composites were observed to perform better than ZnO filled composites under erosive wear situations The dominant wear mechanism is studied on the basis of micrographs of the wornout surface of composite materials Performance optimization of composites is done by using the VIKOR method

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