抄録
In a former paper, the authors reported that two solid solutions, TiC(N) and TiN(C) are the minor phases in synthetic pig irons containing Ti and the other common components. In low-Mn and high-S pig Iron, however, it was found, Ti sulfide appears in addition to TiC(N) and TiN(C). Samples were made by addition of Mn and S at various % to synthetic Fe-C-Si-Ti alloy. The following results were found by microscopic, X-ray diffraction and other tests. (a) Ti sulfide is easily identified by microscopic and X-ray diffraction tests. (b) As reported by H. Morrogh, Ti sulfide appears in the pig iron which have Mn% as low as {(S%×1.7)+0.3}. (c) In many cases, Ti sulfide follows Fe sulphide. (d) Ti in sulfide does not refine the graphite structure and does not stabilize the ferrite formation.
