Abstract
The oxidation behaviour of Fe–46Ni alloy scrap was studied in 0.2 atm oxygen partial pressure at the temperature range of 400–900°C. The oxidation rate was found to be increased with increasing temperature and followed parabolic rate law linearly proportional to temperature. Microstructure and a cross-sectional area of the oxide layer were examined by scanning electron microscope, energy dispersive spectrometryand X-ray diffraction and it may be predicted that iron ions and electrons migrated outward and oxygen anion diffused inward through a spinel structure, (Ni, Fe)3O4. In the long run, oxide powder less than 10 μm from Fe–46Ni alloy scrap was obtained using ball-milling and sieving processes and recovery ratio approached up to 95% for 15 hours.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
