Abstract
It is known that the density of vacancy loops in quenched aluminium and stacking fault tetrahedra in quenched gold show a saturation for low ageing temperatures. The physical mechanism leading to this effect is not well understood. In this paper we consider a simple model which allows us to obtain the temperature dependence of total density. The analysis shows that the plateau region arises due to the fact that the number of absorption sites of a cluster is larger than the number of emission sites. The temperature dependence of the average number of vacancies in a cluster and the single vacancy concentration in equilibrium with the clusters are discussed.
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Ananthakrishna G 1979aPramana 12 527
Ananthakrishna G 1979bPramana 12 543
Ananthakrishna G 1979cPramana 12 565
Ananthakrishna G 1979dPramana 12 581
Hayns M R 1976J. Nucl. Mater. 59 175
Kiritani M 1973J. Phys. Soc. Jpn. 19 618
Meshii M 1965 inLattice defects in quenched metals (eds) R M J Cotterill, M Doyama, J J Jackson and M Meshii (New York: Academic Press) p. 387
Schoeck G and Tiller W A 1960Philos. Maq. 5 43
van Kampen N G 1976Adv. Chem. Phys. 34 245
Wieberg J and Vingsbo O 1977Phys. Rev. B15 5129
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Ananthakrishna, G. A stochastic theory for clustering of quenched-in vacancies-V. Temperature dependence of cluster density. Pramana - J Phys 19, 633–643 (1982). https://doi.org/10.1007/BF02846102
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DOI: https://doi.org/10.1007/BF02846102