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Comparative Performance Analysis of Gr and MoS2 Solid Lubricants During High-Temperature Dry Sliding Wear Behavior of Al2618-Based Hybrid MMCs
https://orcid.org/http://orcid.org/0009-0003-9136-5565
The effect of solid lubricants, viz. MoS2 and graphite (Gr) particulate reinforcement, on the dry sliding wear behavior of Al/B4C/MoS2 and Al/B4C/Gr hybrid metal matrix composites (HMMCs) was investigated. Composite specimen was fabricated through stir casting route. Dry sliding wear behavior was studied as per ASTM G99-17 standard using pin-on-disk test rig. Taguchi’s L27 orthogonal array was used to plan the experimental trials. The obtained results were analyzed using main effect plots and analysis of variance (ANOVA). It was observed that wear rate was found to increase with the increase in wear parameters studied. The variation in wear rate was significant with the increase in temperature and applied load compared to sliding distance and velocity. ANOVA results revealed that wear parameters were statistically significant. Regression models were presented to correlate the wear rate with wear parameters, and established models were found to be adequate and feasible to predict response. The worn surface analysis employed using SEM images revealed that delamination and plastic deformation were dominant on Al/B4C/MoS2 hybrid composite. While groove and crater formed due to plowing, delamination and plastic deformation were more prevalent on the worn surface of Al/B4C/Gr hybrid composite. Subsequently, it suggests that Al/B4C/MoS2 offers better wear resistance compared to Al/B4C/Gr MMC.
Comparative Performance Analysis of Gr and MoS2 Solid Lubricants During High-Temperature Dry Sliding Wear Behavior of Al2618-Based Hybrid MMCs
https://orcid.org/http://orcid.org/0009-0003-9136-5565
The effect of solid lubricants, viz. MoS2 and graphite (Gr) particulate reinforcement, on the dry sliding wear behavior of Al/B4C/MoS2 and Al/B4C/Gr hybrid metal matrix composites (HMMCs) was investigated. Composite specimen was fabricated through stir casting route. Dry sliding wear behavior was studied as per ASTM G99-17 standard using pin-on-disk test rig. Taguchi’s L27 orthogonal array was used to plan the experimental trials. The obtained results were analyzed using main effect plots and analysis of variance (ANOVA). It was observed that wear rate was found to increase with the increase in wear parameters studied. The variation in wear rate was significant with the increase in temperature and applied load compared to sliding distance and velocity. ANOVA results revealed that wear parameters were statistically significant. Regression models were presented to correlate the wear rate with wear parameters, and established models were found to be adequate and feasible to predict response. The worn surface analysis employed using SEM images revealed that delamination and plastic deformation were dominant on Al/B4C/MoS2 hybrid composite. While groove and crater formed due to plowing, delamination and plastic deformation were more prevalent on the worn surface of Al/B4C/Gr hybrid composite. Subsequently, it suggests that Al/B4C/MoS2 offers better wear resistance compared to Al/B4C/Gr MMC.
Comparative Performance Analysis of Gr and MoS2 Solid Lubricants During High-Temperature Dry Sliding Wear Behavior of Al2618-Based Hybrid MMCs
https://orcid.org/http://orcid.org/0009-0003-9136-5565
The effect of solid lubricants, viz. MoS2 and graphite (Gr) particulate reinforcement, on the dry sliding wear behavior of Al/B4C/MoS2 and Al/B4C/Gr hybrid metal matrix composites (HMMCs) was investigated. Composite specimen was fabricated through stir casting route. Dry sliding wear behavior was studied as per ASTM G99-17 standard using pin-on-disk test rig. Taguchi’s L27 orthogonal array was used to plan the experimental trials. The obtained results were analyzed using main effect plots and analysis of variance (ANOVA). It was observed that wear rate was found to increase with the increase in wear parameters studied. The variation in wear rate was significant with the increase in temperature and applied load compared to sliding distance and velocity. ANOVA results revealed that wear parameters were statistically significant. Regression models were presented to correlate the wear rate with wear parameters, and established models were found to be adequate and feasible to predict response. The worn surface analysis employed using SEM images revealed that delamination and plastic deformation were dominant on Al/B4C/MoS2 hybrid composite. While groove and crater formed due to plowing, delamination and plastic deformation were more prevalent on the worn surface of Al/B4C/Gr hybrid composite. Subsequently, it suggests that Al/B4C/MoS2 offers better wear resistance compared to Al/B4C/Gr MMC.
Comparative Performance Analysis of Gr and MoS2 Solid Lubricants During High-Temperature Dry Sliding Wear Behavior of Al2618-Based Hybrid MMCs
J. Inst. Eng. India Ser. D
Divakar, M. H. (author) / Basavarajappa, S. (author) / Joshi, Ajith G. (author)
Journal of The Institution of Engineers (India): Series D ; 105 ; 1485-1492
2024-12-01
8 pages
Article (Journal)
Electronic Resource
English
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