Abstract
Aluminum is anticipated to continue being the primary material for various essential uses like aviation and automobiles. This is because of the great resistance to various climatic conditions, required and controllable mechanical qualities, and high fatigue resistance. Aluminum nanocomposites like AA5128/SiC can be produced by several liquid metallurgical techniques. The main challenges for this method in producing nanocomposites involve ensuring a consistent distribution of strengthening components and controlling any chemical interactions between the strengthening compositions and the matrix. Intended for structural use, specifically in the aircraft industry, developing cost-effective nanocomposites with operational and geometric flexibility poses a significant ongoing challenge. Various methods of producing AA5128/SiC nanocomposites yield distinct mechanical characteristics. Nine nanocomposites were synthesized in the current research by varying the stirring temperatures (810, 860, and 910℃) with different levels of SiC added at 0, 6, 8, and 10 wt %. The composite consisting of 10 wt % SiC and agitated at 860℃ showed improved characteristics in tensile, hardness, and fatigue tests. The composite containing 10 wt % SiC with a stirring temperature (ST) of 860℃ led to a 22.3% rise in tensile strength, a 16.2% rise in Vickers hardness number, and a 40.2% reduction in ductility compared to the sample without nanoparticles. At 810℃ (ST), the fatigue life at a stress level of 100 MPa raised by 18.5% compared to the 10 wt% nanocomposite.
Published Version
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