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2. Standard specification for nickel chromium molybdenum coumbiam alloy UNS No. 6625, ASTM B446-90, Annual Book of ASTM Standards, vol. 2.04, USA.
3. R. Viswanathan, Damage Mechanisms and Life Assessment of High Temperature Components, American Society for Metals, 1990, p. 59.
4. L. Ferrer, B. Pieraggi, J.F. Uginet, in: E.E. Loria (Ed.), Superalloys 718, 625 and Various Derivatives, The Minerals, Metals and Materials Society, USA, 1991, p. 217.
5. Indian Nickel Development Institute, unpublished report.