1. J. E. Spruiell, J. A. Scott, C. S. Ary, and R. L. Hardin:Met. Trans., 1973, vol. 4, p. 1533.
2. G. P. Sanderson and D. T. Llewellyn:J Iron SteelInst., 1969, vol. 207, p. 1129.
3. D. Fahr, E. E. Bloom, and J. O. Stiegler:Proceedings of Conference on Irradia- tion Embrittlement and Creep in Fuel Cladding and Core Components, British Nuclear Energy Society, London, November, 1972, p. 167.
4. J. T. Barnby:J. Iron Steel Inst, 1965, vol. 203, p. 392.
5. D. Fahr: ORNL-TM-4292, Oak Ridge National Laboratory, Oak Ridge, Tenn., November 1973.