Friction Stir Processing & Aging on Fatigue Properties of Aluminium Alloy

Abstract

The FSP process is a thermos-mechanical processing techniques which is carried out by means of pin tool that will heat and mechanically deformed the material. FSP has been developed to produce UFG by applying compressive load with a suitable Tool. To enhance the mechanical properties like strength, fatigue, hardness as well as other properties like optical, electrical, magnetic the microstructure is that decides them. Aluminum alloys have been used in various applications in recent years because these materials are strong, lightweight and cost efficient. Many products are being fabricated from a series aluminum alloys due to their ability to be extruded, welded, and possess a natural resistance to corrosion.  FSP process is used to produce ultrafine grains which are equated by severely deforming the material. It uses both heat and force for converting coarse grains into ultrafine grains which improves the mechanical properties of the material i.e. Strength, hardness, ductility. This process is used in aerospace industries, automobile industries and other industrial application to improve the strength and mechanical properties. Aluminium 6061 alloy followed by T6 temper, and FSP processed to compare the strength and other mechanical properties. Characterization techniques XRD are carried out to get the phases that are formed at different conditions in the processed material. Optical microscopy and SEM perceptions uncovered the impact of fake maturing to cause change in both size and state of the second-stage particles present and circulated through the microstructure.