Affiliation:
1. College of Technology, G.B. Pant University of Agriculture and Technology, India
Abstract
A solid-state method called friction stir processing is used to locally regulate and alter the microstructures of metal or composite near-surface layers. During this operation, a non-consumable tool is driven into the material laterally, agitating the material and producing heat in the process. Severe plastic deformation consequently takes place. A considerable degree of microstructural refinement and material homogeneity are achieved as a result of extreme plastic deformation and heat exposure. The primary process variables that impact the microstructure and other surface composite attributes include tool rotation and transverse speed, axial force, tool pin profile, number of passes, and groove design. Metal matrix composites are widely used in many engineering applications instead of commonly used metals due to their improved mechanical and metallurgical qualities, stability, durability, and corrosion resistance. In this chapter, the effects of some important process parameters on fracture toughness and fatigue behavior are discussed.