1. H. Kitagawa & T. Matsumoto: Trans. JSME, 41,22(1975)
2. A. Izumiyama, Y. Voshioka & M. Terasawa: Adv. X-Ray Anal., 22,221(1979)
3. C.J. Ball & P.M. Kelly: Metal Sci., 16,332(1982)
4. Y. Kurebayashi & S. Kodama: J.JSMS, 33,1039(1984)
5. K. Ogura, Y. Miyoshi et al: 21th Symp. X-Ray Studies on Mech. Behaviours, 85(1984)