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Return to Abstracts of Literature 1500-1749
1597. ---------------. [JACK, K. H.] Binary and Ternary Interstitial Alloys. II. Iron-Carbon-Nitrogen System. Proc. Roy. Soc. (London), vol. 195, A, 1948, pp. 41-55; Chem. Abs., vol. 43, 1949, p. 3765.
Reaction of CO with nitrides of Fe and of NH3 with carbides of Fe gave new Fe carbonitrides, a series of new ternary interstitial alloys. Carbonitrides with structures similar to corresponding Fe nitrides extend from Fe8N4 to Fe8C3N. The latter is isomorphous with Fe2N. Phase fields are described. Prolonged reaction of CO with nitrides of Fe leads to elimination of the N. Below 50° the product is Fe percarbide; above this temperature it is cementite.