Experimental investigation on agriculture waste residue reinforcement in Al 7075 alloy through rotary stir casting

Abstract

Aluminum metal matrix composites (MMCs) are a distinct class of materials with better performance characteristics than their equivalents made entirely of metal. The structural, maritime, aviation, defense and mining sectors all make extensive use of these composites. Many artificially produced hard ceramic reinforcements were investigated extensively to improve the properties of aluminum MMCs; however, the cost and exclusivity of the artificial reinforcements made extensive research on aluminum MMCs derived from agricultural and industrial waste possible. In this work, bamboo leaf ash (BLA), an aluminum MMC (Al 7075/ BLA) based on ceramic reinforcement produced from agricultural waste, is made utilizing the liquid metal stir casting process, with volume percentages of reinforcement in the matrix ranging from 2% to 8% by weight. To determine how much the MMC’s qualities have improved over the basic metal, mechanical and microstructural evaluation is carried out. The study’s findings verified that a sound composite with increased strength and hardness had been produced. The microstructural evaluation verified that the grain structure has undergone substantial refinement, resulting in an improvement in its properties.

Keywords

• Bamboo leaf ash
• agro waste
• rotary stir casting
• Al 7075
• aluminum metal matrix composites
• Industrial Engineering & Manufacturing