TITLE:
Nitriding of Medium Carbon Ferromanganese Alloy in Gas Solid Reaction
AUTHORS:
Saeed N. Ghali
KEYWORDS:
Nitriding, Gas Solid Reaction
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.10 No.4,
March
28,
2011
ABSTRACT: Nitriding process of medium carbon ferromanganese was carried out in the solid state, on lab
and bench scale at temperature range 1023-1323 K using different nitrogen and hydrogen
pressures. The influence of H2/N2 gas ratio, temperature and time on nitriding process of fine (-2 mm) medium carbon ferromanganese were investigated. Nitrogen content, in weight percent ranging from 2.1 to 9.7 could be obtained. The optimum temperature and time of nitriding process was found to be 1223 K and 21.6 ks respectively. The results showed that nitrogen content is mainly depending on time and temperature of nitriding process. The comparison
between results of lab and bench scale, at optimum conditions, showed good coincidence. At
optimum conditions; 1223 K, 21.6 ks and at 2/8 of H2/N2, nitrogen content of fine medium carbon ferromanganese was 9.5%.