Estimation of Wear Behavioural Response of Al-Limestone Slurry Composite Using Taguchi Orthogonal Array

Abstract

Limestone slurry powder (LSP) is one of the solid wastes generated from stone processing industry, used as reinforcing agent replaced conventional ceramic compounds in Aluminum Metal Matrix composites (AMCs) to increase mechanical and tribological properties. In this work aluminum (Al)-magnesium ( Mg)-silicon (Si) alloy is strengthened with addition of LSP to determining the tribological performance of Al-LSP composites are composed with 4, 8, 12 and 16 % weight ratio, and prepared via double stir casting. The tribological tests were conducted on Pin-on-disc Tester, and used to evaluate sliding wear rate (WR) and coefficient of friction (CF). The results indicate that, the wear rate increased with increase of applied load and sliding velocity, but decreased with increasing LSP. Wear mechanism is observed with increase of applied load and changing from abrasion wear to delamination wear. The dispersoids phase in sub-surfaces, worn-out surface and distribution of LSP in base material are examined by Scanning Electron Microscope (SEM) and optical microscope. Taguchi Orthogonal Array (L25) is considered to estimate an optimal response. Analysis of variance (ANOVA) revealed that the most influencing parameters are sliding distance and working load on WR and CF respectively.

Wear Rate Modelling and Analysis of Limestone Slurry Particulate Composites Using the Fuzzy Method

“…Grey-fuzzy reasoning grade (GFRG) has been shown to increase the performance of wear behaviour features in the tribological process, as shown by experimental data. Lokanadham et al, (2020) [22] stated that a solid waste called LSP is being employed as a reinforcing material. Al-LSP composites are made with 4, 8, 12, and 16% weight ratios, and are manufactured by double stir casting, to determine the tribological performance of aluminium (Al), magnesium (Mg), and silicon (Si) alloy to improve the mechanical and tribological characteristics of "Aluminum Metal Matrix Composites (AMCs)".…”

Tribological Performance of Composites Reinforced with the Agricultural, Industrial and Post-Consumer Wastes: A Review

“…The obtained results suggested that either reinforcement with sole granite (2 wt %) or with a combination of granite and graphite (4 and 2 wt %, respectively) contribute to a decrease in the value of COF as compared to neat A356 alloy. In another study, a limestone slurry powder (also a waste from the stone cutting industry) was used to reinforce the aluminum-magnesium-silicon alloy matrix [ 116 ]. The authors observed a decrease in COFs for samples reinforced with the limestone slurry powder, with the optimal weight percentage of waste being 12% (the maximal studied content of waste was 16 wt %).…”

Investigation of mechanical properties and tribological performance of Al-LSP and Al-Al2O3 composite

“…The LSP (1.7–2.9 g/cm 3 ) is lower in density than aluminium (2.7–2.9 g/cm 3 ) as well as classic fillers (SiC: 3.21 g/cm 3 and Al 2 O 3 : 3.95 g/cm 3 ). A detailed study on tribological performance of Al-LSP composites with varying weight percentage has been studied elsewhere (Lokanadham and Subbaiah, 2020). The previous work revealed that, Al-LSP (LSP 12% by weight) composite exhibited better mechanical properties and tribological performance in comparison with other composites.…”