Acta Metallurgica Sinica (English Letters) ›› 1993, Vol. 6 ›› Issue (8): 151-155.

• Research paper • Previous Articles     Next Articles

EFFECT OF NITROGEN ON GRAPHITE MORPHOLOGY IN GRAY CAST IRON

ZHAI Qijie;HU Hanqi University of Science and Technology Beijing,Beijing,China Faculty of Foundry,University of Science and Technology Beijing,Beijing 100083,China   

  • Received:1993-08-11 Revised:1993-08-11 Online:1993-08-11 Published:2009-10-10

Abstract: The distribution of N and morphology of graphite in gray cast iron containing N were studicd by adopting the man-made specimens of Fe-C-Si-Mn alloys with some N added. The N adsorbed along the interfaces between graphite and matrix together with solid- solutioned in graphite is believed to be the principal cause of morpholongical variation of graphite.

Key words: gray cast iron, graphite morphology, N