Irradiation Creep of Solution Annealed and Coldworked 316 Stainless Steel

摘要

Because SA and CW 316 stainless steels were used as standard cladding material, a lot of plastic strain data is now available. Most of it is published and analyzed in term of an irradiation creep modulus A defined as the ratio of the equivalent plastic strain to the product of the equivalent stress by the dose. In fact the experimental data and the theoretical analysis of the in-pile deformation mechanisms show a more complicated situation. The purpose of this paper is to reanalyze the results taking into account this situation. This approach is divided in two parts: (1) the high temperature range (T > = 450 exp 0 C) where data come from irradiated pins; (2) the low temperature range (T < = 450 exp 0 C) where results come from pressurized tubes irradiated in experimental rigs. (ERA citation 09:040059)