Mechanical‐wear behavior and microstructure analysis of Al2214 alloy with B4C and graphite particles hybrid composites

• Published in: Engineering reports (Hoboken, N.J.) N.J.), 2024-10, Vol.6 (10), p.n/a
• Main Authors: Kambaiah, Revanna, Suresh, Ramappa, Nagaral, Madeva, Auradi, Virupaxi, Anjinappa, Chandrashekar, Garse, Komal, Pandhare, Amar Pradeep, Wodajo, Anteneh Wogasso
• Format: Article
• Language: English
• Subjects: Al2214 alloy; Aluminum base alloys; Aluminum composites; B4C particles; Boron; Boron carbide; Composite materials; Density; Ductility; Electron micrographs; Graphite; graphite particles; Hardness tests; Hybrid composites; Impact strength; mechanical behavior; Metallurgical analysis; Microstructural analysis; Microstructure; Particulate composites; Reagents; Scanning electron microscopy; Tensile strength; Tension tests; Ultimate tensile strength; wear; Wear mechanisms; Wear resistance; X-ray diffraction; Yield strength
• ISSN: 2577-8196; 2577-8196
• DOI: 10.1002/eng2.12876

In the present work, hybrid composites made of Al2214 alloy with B4C and graphite were produced by using a liquid metallurgical process. Al2214 alloy was utilized to create hybrid composites that had 1.5–6 wt% of B4C particles and a constant 3 wt% of graphite particles. Microstructural analysis using scanning electron microscope (SEM), energy dispersion spectroscopy (EDS), and X‐ray diffraction (XRD) was done on the produced composites. The density, hardness, ultimate, yield strength, and elongation as a percentage were carried out using ASTM E8 for tensile and E10 standard for hardness test. The wear behavior of Al2214‐B4C and graphite composites was examined as per ASTM G99 standard using a wear testing device under a variety of loads and rotation speeds. Graphite and boron carbide particles were equally dispersed throughout the Al2214 alloy, according to SEM photographs. Graphite and B4C particles were detected in the Al2214 alloy by EDS and XRD analyses. The density of Al alloy composites was decreased by adding dual particles to the matrix. The Al2214 alloy's hardness, ultimate strength, yield strength, and wear resistance were all enhanced by the inclusion of dual particles, which increased these properties by 15.4%, 40.4%, and 46.7%, respectively. The presence of hybrid particles in the Al2214 alloy was revealed by EDS and XRD patterns. The density of Al alloy composites was decreased by adding dual particles to the matrix. Tensile force micrographs provided further evidence of the unique fracture behaviors shown by the Al2214 alloy and its composites. In order to examine the wear mechanisms and different morphologies of worn surfaces, scanning electron micrographs were taken. Adding dual particles to the matrix reduced the density of Al alloy composites. The additions of dual particles improved the hardness by 15.4%, ultimate strength by 40.4% and yield strength by 46.7%, and wear resistance of the Al2214 alloy.