Microstructure and Mechanical Behaviour of Stir-Cast Al-Mg-Sl Alloy Matrix Hybrid Composite Reinforced with Corn Cob Ash and Silicon Carbide

• Main Authors: Oluwagbenga Babajide Fatile, Joshua Ifedayo Akinruli, Anthony Akpofure Amori
• Format: Article
• Language: English
• Published: Taiwan Association of Engineering and Technology Innovation 2014-10-01
• Series: International Journal of Engineering and Technology Innovation
• Subjects: mechanical behaviour; microstructure; corn cob ash; hybrid composite; stir-cast
• Online Access: http://ojs.imeti.org/index.php/IJETI/article/view/147
• ISSN: 2223-5329; 2226-809X

In this present study, the microstructural and mechanical behaviour of Al-Mg-Si alloy matrix composites reinforced with silicon carbide (SiC) and Corn cob ash (An agro‑waste) was investigated. This research work was aimed at assessing the suitability of developing low cost- high performance Al-Mg-Si hybrid composite. Silicon carbide (SiC) particulates added with 0,1,2,3 and 4 wt% Corn cob ash (CCA) were utilized to prepare 10 wt% of the reinforcing phase with Al-Mg-Si alloy as matrix using two-step stir casting method. Microstructural characterization, density measurement, estimated percent porosity, tensile testing, and micro‑hardness measurement were used to characterize the composites produced. From the results obtained, CCA has great potential to serve as a complementing reinforcement for the development of low cost‑high performance aluminum hybrid composites.