Abstract
The application of SiC particulate reinforcement impact greatly for making aluminium matrix composite because of its superb heat conductivity, oxidation stability and high resistance to mechanical erosion. Present work based on dry sliding wear analysis of Al7075/6wt.%SiC composite fabricated by liquid state stir casting method. To acquire a productive wear rate, three major process parameters viz. load, sliding speed and covering sliding distance were compared at four different levels. ANOVA analysis showed that the probability rate of the load is less than 0.05 that revealed their significant factor. From the study, the highest GRG and GFG values are found 0.914 and 0.854, respectively, for the optimal operating parameters of 10 Newton load, 2 m/s sliding speed and 500-m sliding distance. Finally, it is revealed that the grey-fuzzy technique effectively authenticates the decision making of wear performance characteristics rather than a plain grey relational grade.
Highlights
Wear resistance capacity is a most significant aspect to be properly considered for making design elements that secure superb performance for various tribological applications [1]
Akbari et al [21] established the nature of nano and micro grain size TiB2 particles reinforced aluminium matrix composites and observed that TiB2 particles significantly dispersed throughout the molten aluminium matrix
Bhowmik et al [22] investigate mechanical properties and fracture behaviour of SiC/TiB2 micro-sized powder reinforced aluminium matrix composite fabricated by stir casting and shown that TiB2 reinforced composite has additional strength related to SiC reinforced composite
Summary
Wear resistance capacity is a most significant aspect to be properly considered for making design elements that secure superb performance for various tribological applications [1]. Mechanical strength of aluminium alloy enhanced with addition of some hard particulates reinforcement such as SiC, TiB2, B4C, Al2O3, TiC, ZrB2, fly ash etc. Ceramic particulates filled aluminium metal matrix composites reveals greater wear resistance capacity compared to base alloys [10]. Prasad et al [20] investigated the mechanical and wear behaviour of SiC/TiB2 particle reinforced Al6061 matrix composite fabricated by stir casting. It is concluded that UTS significantly reduced with enhancing the temperature of casting done and nano particle TiB2 reinforced composite have better ductility in nature as compared as micro particle. Bhowmik et al [22] investigate mechanical properties and fracture behaviour of SiC/TiB2 micro-sized powder reinforced aluminium matrix composite fabricated by stir casting and shown that TiB2 reinforced composite has additional strength related to SiC reinforced composite.
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