Wear and microstructure analysis of aluminium based composite using eggshell and rice husk ash as reinforcement

Abstract

Purpose The purpose of this paper is to study Al-based green composite. To make composite samples of aluminium alloy (AA3105) with different weight percentages of rice husk ash (RHA) and eggshell (ES) particles as reinforcement, stir casting method was used. Design/methodology/approach Several other aspects, including the weight percent of reinforcing agent particles, the applied stress and the sliding speed, were taken into consideration. During the course of the wear test, the sliding distance that was recorded varied from a minimum of 1,000 m all the way up to a maximum of 3,135 m (10, 15, 20, 25 and 30 min). The typical range for normal loads is 8–24 N, and their speed is 1.58 m/s. Findings With the AA/ES/RHA composite, the wear rates decreases when the grain size of the reinforcing particles enhanced. Scanning electron microscopy images of worn surfaces show that at low speeds, delaminating and ploughing are the main causes of wear. At high speeds, ploughing is major cause of wear. Composites with better wear-resistant properties can be used in wide range of tribological applications, especially in the automotive industry. It was found that hardness increases at the same time as the weight of the reinforcement increases. Tensile and hardness were maximized at 10% reinforcement mix in Al3105. Originality/value In this work, ES and RHA has been used to develop green metal matrix composite to support green revolution as promoted/suggested by United Nations thus reducing the environmental pollution.

Revolutionizing Aluminum-Based Composites: Enhancing Strength with Eggshell and Bagasse Ash Reinforcement via Stir Casting

“…Aluminium alloy, a versatile material renowned for its remarkable properties, has revolutionized various industries, ranging from aerospace to automotive and beyond [1]. Comprising primarily aluminium along with other elements such as copper, zinc, magnesium, and silicon, these alloys offer a unique blend of strength, lightness, and corrosion resistance [2].One of the key advantages of aluminium alloys is their exceptional strength-to-weight ratio, making them ideal for applications where reducing weight is critical without sacrificing structural integrity [3]. This attribute has propelled their widespread adoption in aerospace engineering, where every ounce saved translates to enhanced fuel efficiency and performance.Moreover, aluminium alloys exhibit superb corrosion resistance, particularly when compared to ferrous metals like steel.…”

Revolutionizing Aluminum-Based Composite Manufacturing: Harnessing Fly Ash and Rice Husk Ash Reinforcement through Stir Casting for Sustainability

“…Firstly, it reduces the environmental impact associated with waste disposal by repurposing materials that would otherwise be discarded. Additionally, utilizing waste materials as reinforcement reduces the dependency on virgin resources, contributing to resource efficiency and cost reduction [17][18].Moreover, industrial waste materials often possess desirable properties that can enhance the performance of aluminum composites [19]. For example, fly ash and rice husk ash are rich in silica and alumina content, imparting strength and stiffness to the composite [20].…”