Synthesis and Characterization of Mechanical Properties of AA8014 + Si3N4/ ZrO2 Hybrid Composites by Stir Casting Process

Abstract

Lightweight materials are extremely needed for the manufacturing of industrial parts and are used in aerospace, automobile body shops, biomedical instruments, etc. Aluminium alloy is one of the light-weight materials, and it fulfills the industrial demands based on their natural strength/stiffness, enhanced temperature permanence, superior wear, and corrosion resistance. This experimental work considered aluminium alloy (AA8014) with reinforced particles of silicon nitride (Si3N4) and zirconium dioxide (ZrO2) for preparing aluminium hybrid composites. Hybrid composites are prepared by a stir casting process involving different process parameters. L27 orthogonal array is used for optimizing the stir casting parameters with the assistance of the statistical Taguchi approach. Stir casting parameters are the percentage of reinforcement (4%, 6%, and 8%), stir speed (400 rpm, 500 rpm, and 600 rpm), stir time (20 min, 25 min, and 30 min), and molten temperature (700 oC, 800 oC, and 900 oC). Mechanical performance such as wear and microhardness of the hybrid composites is evaluated. Minimum wear and higher microhardness are encountered at a percentage of reinforcement = 6%, stir speed = 400 rpm, stir time = 30 min, and molten temperature = 900°C. In wear analysis, the percentage of reinforcement highly influences the wear properties (7.06% contribution). In microhardness analysis, molten temperature parameter is the extreme influencer (11.15% contribution).

Synthesis, Thermal Adsorption, and Energy Storage Calibration of Polysulfone Nanocomposite Developed with GNP/CNT Nanofillers

“…It was observed from Figure 3(a) that the thermal conductivity of PSU/GNP nanocomposite gradually increased with an increase in GNP nanofiller. The transmission of higher heat energy requires good interfacial connection [20, 23]. The maximum thermal transient effect of 1.23 W/mK was found on 6 wt% GNP bonded PSU nanocomposite.…”

“…The graphene nanoplatelets (GNPs) and carbon nanotubes (CNT) were selected as secondary phase materials, and their characteristics are valued in Table 2. Among the various epoxy materials, both effective GNPs and CNT are reinforcements for improving the material properties like biological and mechanical, thermal, tribological, and electrical [20]. 1), the essential quantity of polysulfones is bonding on (2 wt%, 4 wt%, and 6 wt %) of GNP along with varying weight percentages (3 wt%, 5 wt%, and 7 wt %) of CNT nanofillers developed via cast solution technique.…”

“…The graphene nanoplatelets (GNPs) and carbon nanotubes (CNT) were selected as secondary phase materials, and their characteristics are valued in Table 2. Among the various epoxy materials, both effective GNPs and CNT are reinforcements for improving the material properties like biological and mechanical, thermal, tribological, and electrical [20].…”

Synthesis and Thermal Adsorption Characteristics of Silver-Based Hybrid Nanocomposites for Automotive Friction Material Application

“…In modern research, the world is forced to search the new advanced material to meet the industrial requirement and fulfill the following qualities: high strength, good thermal stability, enhanced corrosion resistance, ability to withstand high frictional force with reduced wear loss, and increased coefficient of friction. Many researchers have experimentally studied the aluminium alloy-based matrix composite [1][2][3][4] due to their lower density, high ductility, good strength, and stiffness compared to conventional materials [5][6][7][8]. However, the characteristics of composite with their hybrid systems may be varied due to the particle shape and size, mixing ratio, casting process parameters, and method of processing of composite [9][10][11].…”

Recycling of waste aluminum/magnesium metal scrap into useful Al‐ZrO2 alloy composite for eco‐friendly structural applications

“…The closed system enhanced the plant's operation and reliability (Baskar & Venkatesh, 2022; Tu & Hertwich, 2021). The waste metal scrap was one of the best alternative reinforcements for aluminum alloy composite and also mixed with ceramic particles led to enhanced mechanical and tribological performance (Kannan & Vivekanandan, 2022). The aluminum‐based composites were synthesized by alumina oxide particles for structural applications and found good mechanical strength (Naveen et al., 2020).…”