Some studies on mechanical tribological and microstructural analysis of friction stir processing of aa2024 t351 alloy

Abstract

The growing need for enhanced operational properties of fabricated newlinecomponents, alongside the requirement to minimise structural weight, has newlinedriven materials engineering research to focus on improving material strength newlineto meet functional demands. The necessity for weight reduction is a crucial newlineimprovement criterion in the design of aircraft structural components, aircraft newlinefittings, hydraulic manifolds, military aircraft, and automotive industry newlineapplications. Recently, the ability to produce a wide range of track wheels, newlinehydraulic manifolds, and vehicle components has been identified. In these newlineapplications, the relative sliding motion of the components led to material loss newlinedue to friction and wear, resulting in low high-temperature strength and newlinerelatively poor corrosion resistance. newlineThe methods typically employed in surface modification, such as newlinesevere plastic deformation, accumulative roll bonding, equal channel angular newlineprocessing, and high-pressure torsion have been recognised for many years. newlineFriction Stir Processing (FSP) is a relatively novel technique aimed at altering newlinethe microstructure of the processed material. It originated from Friction Stir newlineWelding (FSW). This method has the capability to achieve various outcomes, newlineincluding the generation of microstructural modification of cast alloys, finegrained newlinestructure, alloying with specific elements, and enhancing material newlinestrength. The simplest concept has been applied to various FSP technologies, newlineresulting in improved mechanical properties, refined grain structures, the newlinedevelopment of superplastic materials, changes in wear characteristics and newlinecorrosion resistance, reduced porosity in castings, and the production of newlinespecial alloys. newline