September 1, 2006
Book Chapter

THE INFLUENCE OF COLD-WORK LEVEL ON THE IRRADIATION CREEP AND The Influence of Cold-Work Level on The Irradiation Creep and Swelling of AISI 316 Stainless Steel Irradiated as Pressurized Tubes In The EBR-II Fast Reactor

Abstract

Pressurized tubes of AISI 316 stainless steel irradiated in the P-1 experiment in the EBR-II fast reactor have been measured to determine the dependence of irradiation-induced strains resulting from plastic deformation, irradiation creep, void swelling and precipitation. It is shown that the Soderberg relation predicting no axial creep strains in biaxially-loaded tubes is correct for both plastic and creep strains. Swelling strains are shown to be isotropically distributed both for stress-free and stress-affected swelling, while precipitation strains are somewhat anisotropic in their distribution. When corrected for stress-enhancement of swelling, the derived irradiation creep strains appear to be identical for both annealed and 20% cold-worked specimens, and also for tubes strained by rise to power increases in pressure. For relatively small creep strains it is often difficult to separate the creep and non-creep components of deformation.

Revised: October 27, 2009 | Published: September 1, 2006

Citation

Gilbert E.R., and F.A. Garner. 2006. THE INFLUENCE OF COLD-WORK LEVEL ON THE IRRADIATION CREEP AND The Influence of Cold-Work Level on The Irradiation Creep and Swelling of AISI 316 Stainless Steel Irradiated as Pressurized Tubes In The EBR-II Fast Reactor. In Fusion Materials Semiannual Progess Report for the period ending June 30, 2006, DOE/ER-313/40. 95-103. Oak Ridge, Tennessee:Oak Ridge National Laboratory. PNNL-SA-51941.