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Type 316L stainless steel samples in 20% cold-worked (cw) and recrystallised (rc) conditions were exposed to strain controlled fatigue cycling in torsion at 400 C during an irradiation with 19 MeV deuterons. The effect of irradiation creep induced stress relaxation on the fatigue life was studied by imposing a hold time at the minimum strain value in the loading cycle. For the cw material at strain ranges of 1.13% and 1.3%, the absolute stress value, maintained during the hold time decreases with the number of cycles due to the irradiation creep induced stress relaxation. For the rc material at strain ranges of 1.03% and 1.4%, the absolute stress value increased with the number of cycles, despite the hold time imposed, due to irradiation and cyclic hardening.

Additional information

Authors: SCHOLTZ R, JRC Ispra (IT);MUELLER R, JRC Ispra (IT)
Bibliographic Reference: Paper presented: ICFRM-7, Obninsk (SU), September 25-29, 1995
Availability: Available from (1) as Paper EN 39389 ORA
Record Number: 199512059 / Last updated on: 1996-01-15
Original language: en
Available languages: en