Effect of Silicon on microstructures of iron after high-temperature deuterium implantation

Abstract

Abstract:To study the effect of silicon on microstructures in CLAM (China Low Activation Martensitic) steel after irradiation, the microstructures of Fe and FeSi model alloys were investigated after implanted deuterium ions at 773K. TEM (Transmission Electron Microscope) observation and EDX (Energy Dispersive X-ray Spectrum) analysis have been carried out. The results showed that tiny voids were observed in Fe after implantation, while no void observed in FeSi model alloys. Instead, there were some carbides which indicated silicon played an important role in the improved irradiation resistance. Fast diffusing mechanism was adopted to analyze the effect of silicon during irradiation.