Study of microstructure and surface properties of st14 steel surface composite reinforcement by friction Fe based Nano structured by friction stir processing

In this study, friction stir processing (FSP) was utilized tofabrcation Fe based nano structure Fe48Cr18Mo7Nb6C4B16Y1 particles. For this reason, wc cone shape tool and constant tool rotation rate and travel speed 800 rpm and 100mm/min was used respectively. Microstructural, tribological properties and hardness has been studied. The results show that the hardness was increased by The presence of reinforcing particles and improved microstructural by FSP. The study of wear behavior shows that wear resistance was increased then steel base. Also investigation of wear surface showed that The dominant wear mechanism in the not reinforcement steel is lamination wear that with composite fabrication it to become abrasive wear.