Abstract
• High enery and high charged Ne 10+ ions made the atoms of Fe 80 Si 7 B 13 aggregation. • The uneven range of atoms in Fe 80 Si 7 B 13 is larger than that by SRIM. • Potential energy of Ne 10+ ions caused sputtering and then produced nano-defects. • Free volume is the essential reseaon for materials have good irradiation resistance. Due to the long-range disordered structure, metallic glass could be used as a candidate for radiation-resistant materials. The article showed the influence of Ne 10+ ions irradiation on the microstructure, atomic arrangement and defects of Fe-based metallic glasses. Metallic glasses Fe 80 Si 7 B 13 and Fe 68 Zr 7 B 25 remained amorphous after irradiation at different fluence. However, the atomic arrangement of Fe 80 Si 7 B 13 became uneven after irradiation, and a trend toward ordering appeared. The thickness of the uneven layer of atoms was greater than the calculated concentration distribution range of Ne 10+ ions by SRIM. After irradiation, raised and pitted nano-structure defects appeared on the surface of Fe-based metallic glasses. The surface roughness of Fe 80 Si 7 B 13 increased slightly, while the surface reflectivity decreased, and the number of vacancy-type defects in Fe 80 Si 7 B 13 was slightly increased. These results provide a basic description for the irradiation damage of Fe-based metallic glass and give a evaluation of potential applications of the metallic glass.
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