1. R. A. Holt, W. Evans andB. A. Cheadie, Proceedings of the 4th International Conference on Materials Technology, Caracas, Venezuela, June 1975, p. 329.
2. R. A. Holt,J. Nuclear Mater. 35 (1970) 322.
3. Idem, ibid. 47 (1973) 262.
4. O. T. Wio andK. Tangri,ibid. 79 (1979) 82.
5. J. A. Greenwood,Brit. Weld. J. 8 (1961) 316.