SYMPOSIA PAPER Published: 01 January 1994

The Complex Action of Major Solutes on Radiation-Induced Swelling of Fe-Cr-Ni Austenitic Alloys


The radiation-induced swelling of simple Fe-Cr-Ni austenitic alloys is known to be very sensitive to solute additions. It is shown in this paper that three of the most common solute elements (P,Si,Mo) exert a very complex and often non-monotonic influence on swelling with increasing solute level. The complexity of this influence and its dependence on other variables appears to be the result of a closely balanced competition between two or more roles played by each solute in its interaction with both vacancies and interstitials. This competition yields a variety of different swelling behaviors in response to changes in solute or solvent composition, displacement rate, and irradiation temperature.

Author Information

Garner, FA
Pacific Northwest Laboratory, Richland, WA
Lauritzen, T
General Electric Corporation, Sunnyvale, CA
Mitchell, MA
University of Illinois, Urbana, IL
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Developed by Committee: E10
Pages: 803–815
DOI: 10.1520/STP23972S
ISBN-EB: 978-0-8031-5262-5
ISBN-13: 978-0-8031-1488-3