ステンレス鋼中の硫化物について
1961 年 25 巻 9 号 p. 560-564
詳細
1961 年 25 巻 9 号 p. 560-564
X-ray diffraction studies, chemical analyses and microscopic examinations were carrid out on sulfides isolated electrolytically from ferritic and austenitic stainless steels, and the effect of additional elements on the crystal structure, chemical composition and shape of sulfides in these steels were studied. The results obtained are listed below (1) Chromium sulfide, CrS, is present in both 13%Cr and 18-8 stainless steels. (2) Ni, Co, Mo, W and Si in stainless steels have little effect on the properties of CrS. (3) V concentrates into CrS replacing the Cr atoms up to the composition VS. (4) Mn, Nb, Ti and Zr form their own sulfides, MnS, NbS, TiS and ZrS, respectively (5) CrS, MnS and ZrS have a grobular form. While TiS is platelike, VS and NbS are dendritic.
