• Mallur, S. B.
• Patil, Aruns
• Budapanahalli, Shridhar H.
• Kumar, Raman

Abstract

<jats:p>Due to light weight, high strength to weight ratio, higher wear resistancealuminium and its alloy have got greater consideration as a matrix materialin most of the composite applications. Al MMCs is used in preparation ofpistons, cylinder barrel, break discs, gears, valves etc. Use of Al-Sialloys are increasing in areas of automobile and aerospace industries.Present study aims to investigate about wear behaviour of aluminium 7075hybird composite with silicon carbide (SiC) and aluminium oxide (Al2O3) asreinforcements. Hybird composite material were processed through stircasting process. Addition of SiC is 3,6 and 9 wt.% whereas Al2O3 is fixed 5wt.%. Wear test was conducted through unlubricated conditions. Wear rate wasbeen recorded after each set of experiment carried through wear test. Tooptimize the control parameters Taguchi method was used as a statisticaltool. L9 orthogonal array was utilized and investigational design was basedon control factors namely SiC wt.%, load, sliding distance and responsefactor was wear rate to study the wear performance. Empirical relation wasestablished for wear rate in relations of control variables by multipleregression analysis. Finally, analysis of variance (ANOVA) was used toevaluate the impact of specific factors on wear rate. MINITV.17.1.0 wasused to analyse the results. It was observed that load and SiC wt.% weresignificant factor affecting response variable. Higher values of SiC wt.%increased the wear resistance.</jats:p>

Topics

• impedance spectroscopy
• experiment
• aluminum oxide
• aluminium
• wear resistance
• wear test
• strength
• carbide
• Silicon
• metal-matrix composite