1. 1) F. Masuyama: The EPRI/National Power Conference, New Steels for Advanced Plant up to 620°C, ed. by E. Metcalfe, (Soc. Chem. Indus., London, 1995) pp.98-108.
2. 2) T. Fujita: Tetsu-to-Hagane 76 (1990) 1053-1075.
3. 3) M. Kimura, K. Kobayashi and K. Yamaguchi: Tetsu-to-Hagane 87 (2001) 508-514.
4. 4) K. Kimura, K. Kobayashi and K. Yamaguchi: J. High Pressure Inst. Japan. 40 (2002) 262-269.
5. 5) M. Kimura, K. Kobayashi and K. Yamaguchi: Mater. Sci. Res. Inter. 9 (2003) 50-54.