1. 1) M. Fukuda, T. Yoshida, A. Iseda, H. Semba, E. Saito, M. Kitamura, T. Dohi, H. Aoki, K. Muroki, H. Fukutomi, K. Sato, K. Takahashi, N. Saito, Y. Hirakawa, T. Hishii, T. Takahashi, T. Takano, Y. Matsubara and Y. Yagi: Proc. 8th Int. Conf. on Advances in Materials Technology for Fossil Power Plants, ASM International, Materials Park, OH, (2016), 12.
2. 2) K. Fujiyama, Y. Mizutani, Y. Taniguchi and H. Kimachi: J. Soc. Mater. Sci. Jpn., 62 (2013), 305 (in Japanese).
3. 3) K. Fujiyama, K. Harada, A. Ogawa and H. Kimachi: J. Soc. Mater. Sci. Jpn., 64 (2015), 88 (in Japanese).
4. 4) T. Tokairin and M. Kitamura: Proc. 8th Int. Conf. on Advances in Materials Technology for Fossil Power Plants, ASM International, Materials Park, OH, (2016), 271.
5. 5) F. Masuyama, K. Ishiyama and T. Yamaguchi: Proc. 42nd Materials Testing Institute University of Stuttgart-Seminar, MPA Stuttgart, Stuttgart, (2016), No. 9.