PREDICTION OF THE PROBABILITY OF SPHEROIDIZATION IN NODULAR CAST IRON BY PARAMETRIC DIAGRAM OF CHEMICAL BOND
Wei Yongde Harbin University of Technology
Cite this article:
Wei Yongde Harbin University of Technology. PREDICTION OF THE PROBABILITY OF SPHEROIDIZATION IN NODULAR CAST IRON BY PARAMETRIC DIAGRAM OF CHEMICAL BOND. Acta Metall Sin, 1979, 15(4): 559-562.
Abstract So far the selection of a proper spheroidizing agent for nodular cast ironproduction is deduced from the experience. On the basis of the related theoriesof chemical bond an attempt was made to suggest a parametric diagram of chemi-cal bond concerning interaction between graphitic carbon and other atoms in mol-ten cast iron. Three distinguishable regions as spheroidizing, transitional and anti-spheroidizing may be designated. The element distribution in either spheroidizingor anti-spheroidizing region appears to agree fairly well with both experimentsand production practice. Furthermore, a function ρ_i has been taken as the measureof probability of spheroidization for certain elements in the spheroidizing region.
