1. H. Suito and R. Inoue:Tetsu-to-Hagané, 1987, vol. 73, p. s246.
2. M. Sasagawa, B. Ozturk, and RJ. Fruehan:Trans. Iron Steel Soc, ISS, Warrendale, PA, Dec. 1990, p. 51.
3. K. Ito and R.J. Fruehan:Metall. Trans. B, 1988, vol. 19B, pp. 419–25.
4. D.J. Min and R.J. Fruehan:Metall. Trans. B, 1990, vol. 21B, pp. 1025–32.
5. C. Martinez and N. Sano:Comp. Iron Steel Inst. Jpn., Current Advances in Materials and Processes, 1988, vol. 1.