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Ali, Basit
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
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article
Carbon Co-Deposition During Gas Reduction of Water-Atomized Fe-Cr-Mo Powder
Abstract
<jats:title>Abstract</jats:title><jats:p>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 (CH<jats:sub>4</jats:sub>) and argon (Ar) gas. The lowest oxygen content was achieved with a 100 cc/min flow rate of CH<jats:sub>4</jats:sub>, but this also resulted in a co-deposition of carbon due to the cracking of CH<jats:sub>4</jats:sub>. 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 CH<jats:sub>4</jats:sub>gas flow rate and carbon content of the powder, meaning that its composition can be easily controlled to suit a variety of different applications.</jats:p>