Investigation of Mechanical and Tribological Behaviors of Aluminum Based Hybrid Metal Matrix Composite and Multi-Objective Optimization

Aluminum metal matrix composites are potential materials for aerospace and automobile industrial applications due to their enhanced mechanical and tribological properties. Aluminum reinforced with silicon carbide particles has been developed with enhanced mechanical and tribological behavior, but it...

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Bibliographic Details
Published in:	Materials Vol. 15; no. 16; p. 5607
Main Authors:	Gonfa, Biranu Kumsa, Sinha, Devendra, Vates, Umesh Kumar, Badruddin, Irfan Anjum, Hussien, Mohamed, Kamangar, Sarfaraz, Singh, Gyanendra Kumar, Ahmed, Gulam Mohammed Sayeed, Kanu, Nand Jee, Hossain, Nazia
Format:	Journal Article
Language:	English
Published:	Basel MDPI AG 16-08-2022 MDPI
Subjects:	Aerospace engineering Aerospace industry Al 6061 Al/SiC/MoS2 Aluminum alloys Aluminum matrix composites Bonding strength Composite materials Design of experiments GRA Grain boundaries Grain size Hardness Hybrid composites Industrial applications Investigations Mechanical properties metal matrix composites Molybdenum disulfide Multiple objective analysis Optimization Orthogonal arrays Particle size Signal to noise ratio Silicon carbide Software Solid lubricants Stirring stirring time Tensile strength Titanium alloys Transportation equipment industry Tribology Wear rate Wear resistance Weight reduction Wettability
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Summary:	Aluminum metal matrix composites are potential materials for aerospace and automobile industrial applications due to their enhanced mechanical and tribological properties. Aluminum reinforced with silicon carbide particles has been developed with enhanced mechanical and tribological behavior, but it lacks wettability between matrix and reinforcement causing weak bonding, which reduces the degree of enhancement. The objectives of this study were to fabricate aluminum-based metal matrix composites with enhanced wettability at varying stirring speeds (350, 450, 550 rpm), stirring time (5, 10, 15 min), weight percentage of SiC (0, 5, 10 wt.%), and weight percentage of MoS2 (0, 2, 4 wt.%). Nine samples were fabricated using stir casting based on Taguchi L9 orthogonal array. Hardness, tensile strength, and wear rate of the developed composite were investigated and analyzed as a single response characteristic using Taguchi’s signal-to-noise ratio and as a multi-response characteristic using hybrid Taguchi–grey relational analysis (HTGRA). The results revealed that the addition of SiC in the composite produced better hardness, tensile strength, and wear rate. The addition of MoS2 in the composite showed better hardness and tensile strength only up to 2 wt.% of MoS2, and in the case of wear rate, the addition of MoS2 in the composite up to 4% showed better wear resistance. Al–SiC–MoS2 hybrid composite shows better enhancement in hardness, tensile strength, and wear resistance than the Al–SiC composite.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1996-1944 1996-1944
DOI:	10.3390/ma15165607