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- Title
CARBON CO-DEPOSITION DURING GAS REDUCTION OF WATER-ATOMIZED Fe-Cr-Mo POWDER.
- Authors
SEO, S. J.; PARK, K. T.; ALI, B.; CHOI, S. H.; KIM, T. S.; MAENG, D. Y.; LEE, C. G.
- Abstract
The water atomization of iron powder with a composition of Fe-3Cr-0.5Mo (wt.%) at 1600°C and 150 bar creates an oxide layer, which in this study was reduced using a mixture of methane (CH4) and argon (Ar) gas. The lowest oxygen content was achieved with a 100 cc/min flow rate of CH4, but this also resulted in a co-deposition of carbon due to the cracking of CH4. This carbon can be used directly to create high-quality, sinter hardenable steel, thereby eliminating the need for an additional mixing step prior to sintering. An exponential relationship was found to exist between the CH4 gas flow rate and carbon content of the powder, meaning that its composition can be easily controlled to suit a variety of different applications.
- Subjects
ATOMIZATION; HYDRAULICS; IRON powder; OXIDATION-reduction reaction; POWDER metallurgy
- Publication
Archives of Metallurgy & Materials, 2017, Vol 62, Issue 2, p1119
- ISSN
1733-3490
- Publication type
Article
- DOI
10.1515/amm-2017-0163