Abstract
The possibility that formation of voids under creep-rupture conditions may take place by the condensation of vacancies has been investigated theoretically. It has been concluded that nucleation of voids under creep-rupture conditions by vacancy condensation is highly improbable. However, growth of pre-existant voids by vacancy condensation is probable. A number of predictions made in this theory have been verified by the data. It has been predicted and checked that the product of rupture life and steady-state creep rate for preannealed metals and single phase alloys is an approximately invariant quantity, independent of stress, temperature, and atomic number for a given type structure. The direction of the effect of cold work on this product has been predicted and found in agreement with experiment. A number of experiments to evaluate the vacancy condensation mechanism further are described.
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Discussion of this paper, TP 4062E, may be sent, 2 copies, to AIME by Apr. 1, 1956. Manuscript, Oct. 26, 1954. Philadelphia Meeting, October 1955.
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Machlin, E.S. Creep-Rupture by Vacancy Condensation. JOM 8, 106–111 (1956). https://doi.org/10.1007/BF03377651
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DOI: https://doi.org/10.1007/BF03377651