Surface composites by friction stir processing: A review

摘要: Abstract Surface composites are suitable materials for engineering applications encountering surface interactions. Friction stir processing (FSP) is emerging as a promising technique making composites. FSP can improve properties such abrasion resistance, hardness, strength, ductility, corrosion fatigue life and formability without affecting the bulk of material. Initially, was used in aluminum magnesium based alloys. Recently including steel titanium alloys have also been reported. While influence process parameters tool characteristics different has considerably reviewed during last decade, fabrication by relation between microstructure mechanical FSPed well underlying mechanisms not wholesomely reviewed. The present review offers comprehensive understanding friction processed available literature classified to details about effect parameters, reinforcement particles, active cooling multiple passes on evolution micro-composites, nano-composites, in-situ hybrid discussed. Considering importance wear high melting point hard composites, brief note limitation their usage provided. strengthening composite discussed with reported models. This revealed few gaps research via route defect-free tailoring microstructures, development durable cost effective tools, mechanisms. Important suggestions further composited