1. 1) K. Okajima and H. Sakao: Trans. JIM, 14 (1973), 70.
2. 2) R. Hultgren, R. L. Orr, P. D. Anderson and K. K. Kelley: Selected Values of Thermodynamic Properties of Metals and Alloys, John Wiley and Sons, New York, (1963), p. 331.
3. 3) K. Okajima and H. Sakao: Mem. Fac. Eng. Nagoya Univ., 22 (1970), 155.
4. 4) K. Okajima and H. Sakao: Trans. JIM, 11 (1970), 180.
5. 5) K. Okajima and H. Sakao: Trans. JIM, 13 (1972), 143.