Investigation of Mechanical Behavior and Microstructure Analysis of AA7075/SiC/B4C-Based Aluminium Hybrid Composites

Abstract

The microstructure and mechanical properties of an MMC based on AA 7075 and strengthened through silicon carbide (SiC) as well as boron carbide (B4C) elements were studied. The (SiC + B4C) combination was used in various weight percentages of 4, 8, 12, and 16% to create the hybrid composites utilizing the traditional stir casting procedure. XRD and SEM measurements were used to investigate the dispersion of the reinforced particles. For example, microhardness, impact strength, and ultimate tensile strength were measured on hybrid composites at room temperature. The density and porosity of the materials were also studied. The researchers found that increasing the weight percentage of the (SiC + B4C) mixture resulted in a small drop in % elongation. However, hybrid composites comprising 16% (SiC + B4C) weight reduction showed some decrease in hardness and tensile strength. Equated to unreinforced alloys, the hardness and tensile strength of hybrid composites rise by 8% and 21%, respectively. Reinforcement also resulted in a decrease in impact strength and density, as well as an increase in porosity.

Optimizing the Parameters of Spark Plasma Sintering to Enhance the Hardness of MgO/TiC Composites

“…Orthogonal arrays are only possible when the total number of parameters exceeds the sum of the parameters [32,33]. Tis investigation considers three parameters, each of which has three stages in the tests: 500, 550, and 600 °C for sintering temperature; 35, 45, and 55 MPa for sintering pressure; and 15, 20, and 25 min for sintering time.…”

Effect of glycerin on mechanical properties of a hybrid kenaf-jute polyester composite

“…Hybridization with two different types of reinforcement, whether natural or synthetic, is widely used in the polymer industry. This allows designers to create products with specialized mechanical properties, such as low moisture permeability and strong fiber-matrix bonding [11][12][13][14][15][16][17]. Hybridization has a beneficial effect on storage modulus, loss modulus, and Glass transition temperature in the Jute-Sisal hybrid fiber-reinforced epoxy biocomposite with varying fibre weight ratios [18].…”