1. A. R. ROSENFIELD, E. VOTAVA and G. T. HAHN,Trans. ASM 61 (1968) 807.
2. X. J. ZHANG, PhD Thesis, University of Maryland (1985).
3. W. C. LESLIE,Iron Steel Soc. Trans. 2 (1983) 1.
4. J. H. TWEED and J. F. KNOTT,Metall Sci. 17 (1983) 45.
5. M. E. TAYLOR Jr and X. J. ZHANG, unpublished results.