1. 1) K. Kishida and O. Akisue: Tetsu to Hagané, 76 (1990), 759.
2. 2) M. Morita, K. Sato and Y. Hosoya: Tetsu to Hagané, 80 (1994), 48.
3. 3) W. J. Phythian, C. A. English and J. T. Buswell: Proc. 5th Int. Meeting on Environmental Degradation of Reactor Materials-Water Reactors, Monterey, California, (1991).
4. 4) E. Hornbogen and R. C. Glenn: Trans. Metall. Soc. of AIME, 218 (1960), 1064.
5. 5) G. R. Speich and R. A. Oriani: Trans. Met. Soc. AIME, 233 (1965), 623.