Crystallization of Fe83B17 amorphous alloy by electric pulses produced by a capacitor discharge

摘要: Heating of conductive materials by electric current is used in many technological processes. Application pulses to metallic glasses induces their fast crystallization, which an interesting and complex phenomenon. In this work, crystallization the Fe83B17 amorphous alloy induced produced has been studied using X-ray diffraction transmission electron microscopy. Ribbons were directly subjected single 250 µs long formed a capacitor discharge. As value $$\smallint I^{2} {\text{d}}t$$ was increased from 0.33 2.00 A2 s, different stages could be observed. The began through formation nuclei α-Fe. At high values , α-Fe tetragonal orthorhombic Fe3B Fe23B6 detected crystallized ribbons with crystallites about 50 nm. Thermal annealing at 600 °C for 2 min resulted Fe3B. It concluded that discharge transformation phase into metastable crystalline products.