1. 1) T. Honma and N. Netsu: Proc. U.S./Japan Joint Seminar on Mechanical Behavior of Metals and Alloys, Troy, U.S.A., (1979), p. 66.
2. 2) T. Honma: ibid., p. 72.
3. 3) S. Miyazaki, Y. Ohmi, K. Otsuka and Y. Suzuki: Proc. ICOMAT-82, Belgium, (1982), C4 255.
4. 4) J. M. Cook and L. M. Brown: Scripta Met., 12 (1978), 949.
5. 5) J. D. Stice and C. M. Wayman: Met. Trans., 13A (1982), 1687.