1. C.G. McKamey, J.A. Horton, C.T. Liu, in: N.S. Stoloff, C.C. Koch, C.T. Liu, O. Izumi (Eds. ), High-Temperature OrderedIntermetallic Alloys II, MRS Proc. Vol. 81, Materials Research Society, Pittsburgh, PA, 1987, p.321.
2. J.H. Schneibel, P. Grahle, J. Ro¨ sler, Mater. Sci. Eng. A153 (1992) 684.
3. K. Vedula, in: K. Nateson, D.J. Tillack (Eds. ), Heat-Resistant Materials, ASM International, Materials Park, OH, 1991, p.159.
4. C.H. Henager Jr., J.L. Brimhall, L.N. Brush, Mater. Sci. Eng. A195 (1995) 65.
5. P. Krishnan, A. Costa e Silva, M.J. Kaufman, Scripta Metall. Mater. 32 (1995) 839.