Cr鋼中P, Sの旧オーステナイト粒界偏析に及ぼす応力の影響
1977 年 41 巻 5 号 p. 458-463
詳細
1977 年 41 巻 5 号 p. 458-463
Effects of tensile stress on the intergranular segregation of phosphorous and sulfur in the tempering of low carbon steels containing 1.7%Cr and 2.5%Cr were investigated by means of Auger electron emission spectroscopy.
The intergranular segregation of phosphorous was found to be enhanced by tensile loading. However, the concentration of sulfur at grain boundaries in steels containing phophorous was decreased by loading. These results were interpreted in terms of the boundary structure which was suggested from the thickness of those segregation zones, that is, phosphorous atoms are adsorbed and sulfur atoms precipitate as sulphide at boundaries.
