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Fluctuations in composition in dilute alloys under irradiation

  • Symposium on Irradiation-Enhanced Materials Science and Engineering
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Abstract

Solute segregation in alloys and steels during irradiation has been studied both experimentally and theoretically for a number of years. In this paper, a rigorous theory for the segregation of solute in a dilute binary alloy is described which is based on the kinetic theory of diffusion. This theory is then used to predict irradiation-induced instabilities in the diffusion of the solute which cause spatial oscillations in composition. It is shown that trapping of both vacancies and interstitials at solute atoms can cause such instabilities. The results of numerical calculations are compared with experimental results.

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Authors and Affiliations

  1. Materials Development Division, Harwell Laboratory, OX110RA, Didcot, Oxfordshire, UK

    S. M. Murphy (Research Scientist)

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  1. S. M. Murphy
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Additional information

This paper is based on a presentation made in the symposium “Irradiation-Enhanced Materials Science and Engineering” presented as part of the ASM INTERNATIONAL 75th Anniversary celebration at the 1988 World Materials Congress in Chicago, IL, September 25-29, 1988, under the auspices of the Nuclear Materials Committee of TMS-AIME and ASM-MSD.

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Murphy, S.M. Fluctuations in composition in dilute alloys under irradiation. Metall Trans A 20, 2599–2607 (1989). https://doi.org/10.1007/BF02670153

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  • DOI: https://doi.org/10.1007/BF02670153

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