A Study on Microstructural Behaviour and Mechanical Properties of Composites Fabricated by Friction Stir Processing

Being a green manufacturing technique, FSP could be viewed as the most important advancement in the field of metal joining and composite fabrication.In the current scenario, it is required for any production technique that,it should be efficient, versatile and environment friendly.Nowadays surface composites are the most suitable materials for industrial purposes and for its fabrication, the most evolving production technique is FSP.Surface properties can be enhanced by using this technique such as strength, hardness, corrosion resistance, ductility, abrasion wear, formability, fatigue etc. Earlier, it was used to fabricate the composite of mainly aluminium and magnesium-based alloys, but now this technique can be used on steel, titanium, and other metal alloys also.Nowadays various research has been going on in the field of metal foam fabrication which is fabricated by mixing the base material with the blowing agents and the surface properties of the metal foam is better than the surface composites in term of hardness, strength, fatigue life, etc.The current review has classified to discuss the effect of the process parameters, geometry and material of the tool, reinforced particles, microstructural behaviour and surface properties of the composites and metal foam.