ころがり疲れによつて生成した板状炭化物の諸性質
1983 年 69 巻 7 号 p. 853-860
詳細
1983 年 69 巻 7 号 p. 853-860
A study has been made on the characteristics of the platelike carbides formed under the rolling track during the thrust type rolling fatigue tests. By EPME analysis, chemical shift measurements by EPMA of C-K bands, and electron microscope observations, the platelike carbides are found to be cementites and ε carbides formed independently at a ratio of 1 to 1.
EPMA analysis shows that concentrations of Mn and Cr in the platelike carbides are the same as in the matrix. The platelike carbides, cementites or εs carbides, are etched dark by alkaline sodium picrate in similar tone. When heated to 800°C, the platelike carbides dissolve into the matrix as the spheroidized cementites do.
