The study on the fabrication of iron powder from forging scales using hydrogen gas has been conducted on the effect of hydrogen partial pressure, temperature, and reactive time. The mechanism for the reduction of iron oxides was proposed with various steps, and it was found that reduction pattern might be different depending on tem- perature. The iron content in the scale and reduction ratio of oxygen were both increased with increasing reactive time at 0.1atm of hydrogen partial pressure. On the other hand, for over 30 minutes at 0.5 atm of hydrogen partial pressure, the values were found to be almost same. In the long run, iron metallic powder was obtained with over 90% of iron content and an average size of its powder was observed to be about 100 µm.

• 이동원(Powder Technology Research Group, Korea Institute of Materials Science (KIMS)) | Dong-Won Lee
• 윤중열(Powder Technology Research Group, Korea Institute of Materials Science (KIMS)) | Jung-Yeul Yun
• 신선명(Extractive Metallurgy Group, Korea Institute of Geoscience and Mineral Resources (KIGAM)) | Shun-Myung Shin
• 김인수(Department of Materials Science and Engineering, Dong-A University) | In-Soo Kim
• 왕제필(Department of Metallurgical Engineering, Pukyong National University) | Jei-Pil Wang Corresponding Author