1. A. E. Marsh andT. Marrison, in the Proceedings of “Forging and Properties of Aerospace Materials”, Leeds (1977) (The Metals Society, London, 1978) p. 308.
2. G. J. Lewis, D. M. Parkin andF. A. Thompson,ibid, p. 390.
3. C. A. Morris andJ. W. Smythe, “Superalloys — Processing”. Proceedings of the 2nd International Conference, Seven Springs, Penn. (1972). IMD High Temperature Alloys Committee of TMS-AIME.
4. P. J. Postans andR. H. Jeal, in the Proceedings of “Forging and Properties of Aerospace Materials”, Leeds (1977), (The Metals Society, London, 1978) p. 300.
5. D. L. Williams,Powder Met. 2 (1977) 84.