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The magnetic properties of as quenched and annealed Fe 73.5 Ag 1Nb 3Si 13.5 B 9 alloys were investigated. X ray diffraction was used to monitor the structure changes of the samples under different annealing temperatures. It was found that by Cu addition, the crystallization temperature T x1 of Fe Nb Si B alloy is decreased, whereas by Ag addition, the T x1 is increased. A small amount of α Fe and Ag were obtained after the sample was annealed at 500℃ for 1 h. With increasing the annealing temperature, Fe 23 B 6、 Fe 2B、 Fe 3B were separated out and magnetic properties of the samples were impaired quickly. A mostly single nanocrystalline grain of α Fe phase could not be obtained in the annealed samples.
The magnetic properties of as quenched and annealed Fe 73.5 Ag 1Nb 3Si 13.5 B 9 alloys were investigated. Xray diffraction was used to monitor the structure changes of the samples under different annealing temperatures. It was found that by Cu addition, the crystallization temperature T A small amount of α Fe and Ag were obtained after the sample was annealed at 500 ° C. for 1 h. With increasing the annealing temperature, Fe 23 B 6, Fe 2B, Fe 3B were separated out and magnetic properties of the samples were impaired quickly. A mostly single nanocrystalline grain of α Fe phase could not be obtained in the annealed samples.