Theoretical models, appropriate for considering whether or not cavities can be nucleated at discontinuities (e.g., second-phase particles) in grain boundaries during high-temperature creep, are analysed. It is concluded that experimental conditions are frequently such that cavities may be nucleated in this manner, and the implications of the conclusion are discussed in detail.
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References
1.
BalluffiR. W. and SeigleL. L., Acta Met., 1957, 5, 449.
2.
McLeanD., “Vacancies and Other Point Defects in Metals and Alloys”, p. 187. 1957: London (Inst. Metals).
3.
GifkinsR. C., “ Fracture ” (edited byAverbachB. L. et al.), p. 579. 1959: New York and London (John Wiley).
4.
HullD. and RimmerD. E., Phil. Mag., 1959, 4, 673.
5.
CottrellA. H., “Structural Processes in Creep” (Special Rep.No. 70), p. 1. 1961: London (Iron Steel Inst.).
6.
GreenwoodG. W., Phil. Mag., 1963, 8, 707.
7.
RatcliffeR. T. and GreenwoodG. W., ibid., 1965, 12, 59.
8.
BoettnerR. C. and RobertsonW. D., Trans. Met. Soc. A.I.M.E., 1961, 221, 613.
9.
WeaverC. W., J. Inst. Metals, 1959 –60, 88, 296.
10.
IrvineK. J., MurrayJ. D., and PickeringF. B., “Structural Processes in Creep” (Special Rep. No. 70), p. 246. 1961: London (Iron Steel Inst.).
11.
JenkinsonE. A., DayM. F., SmithA. I., and HoplcinL. M. T., J. Iron Steel Inst., 1962, 200, 1011.
12.
GifkinsR. C., Acta Met., 1956, 4, 98.
13.
StrohA. N., Proc. Roy. Soc., 1954, [A], 223, 404.
14.
StrohA. N., Advances in Physics, 1957, 6, 418.
15.
SmithE. and BarnbyJ. T., Metal Sci. J., to be published.
16.
EborallR., “Structural Processes in Creep” (Special Rep.No. 70), p. 75. 1961: London (Iron Steel Inst.).
17.
SmithE., Acta Met., 1966, 14, 985.
18.
WeaverC. W., ibid., 1960, 8, 343.
19.
HeadA. K. and LouatN., Australian J. Physics, 1955, 8, 1.
20.
IrwinG. R., J. Appl. Mechanics, 1957, 24, 361.
21.
SmithE., Internat. J. Fracture Mechanics, 1966, 1, (3), 204.
22.
SmithE., Proc. Roy. Soc., 1966, [A], 292, 134.
23.
SmithE., Acta Met., 1966, 14, 991.
24.
GriffithA. A., Phil. Trans. Roy. Soc., 1921, [A], 221, 163.
25.
OrowanE., Z. Krist., 1934, 89, 327.
26.
SneddonI. N., Proc. Roy. Soc., 1946, [A], 187, 229.
27.
YokoboriT., IchikawaM., and OhashiM., ”Proceedings of the International Conference on Fracture" (Sendai, Japan, 1965).
28.
IrwinG. R., KiesJ. A., and SmithH. L., Proc. Amer. Soc. Test. Mat., 1958, 58, 640.
29.
McLeanD., J. Australian Inst. Metals, 1963, 8, 45.
