Helium partitioning to extended defects in dual ion bombarded 304 and 316 SS

Dual ion experiments have been conducted on specimens of 304 SS and 316 SS to estimate the fraction of implanted helium associated with cavities, dislocations or in submicroscopic bubbles. The results suggest that approximately 99 percent of the helium is in visible cavities near the peak swelling t...

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Bibliographic Details
Published in:Journal of nuclear materials 1981, Vol.104, p.1463-1467
Main Authors: Spitznagel, J.A., Wood, S., Doyle, N.J., Choyke, W.J., McGruer, J.N., Townsend, J.R., Irwin, R.B.
Format: Article
Language:English
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Summary:Dual ion experiments have been conducted on specimens of 304 SS and 316 SS to estimate the fraction of implanted helium associated with cavities, dislocations or in submicroscopic bubbles. The results suggest that approximately 99 percent of the helium is in visible cavities near the peak swelling temperature. Numerical calculations of helium partitioning based on cavity and dislocation sink strengths for vacancies are shown to overestimate the number of gas atoms associated with dislocations, and to reduce the maximum possible equilibrium bubble size by a factor of two.
ISSN:0022-3115
1873-4820
DOI:10.1016/0022-3115(82)90806-6