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Abstract

The 316 L stainless steel samples in 20 % cold-worked conditions were exposed to fully reversed fatigue cycling in torsion at 400 C during an irradiation with 19 MeV deuterons. Fatigue tests were performed in the high cycle fatigue (HCF) range under continuous cycling and in the low cycle fatigue (LCF) range by imposing a hold-time at the minimum strain value. In comparison with tests under thermal conditions, an increase in the number of cycles to failure N(f) is observed for the HCF tests and a decrease for the LCF tests, especially if the shear strain range lies below 1.5 %. The data are analysed using a fatigue damage model; a fatigue damage parameter is defined and the change in this parameter caused by the different irradiation or loading conditions shows directly the effect of changed experimental conditions on the fatigue life.

Additional information

Authors: SCHOLZ R, JRC Ispra (IT);DOS SANTOS MARQUES F, JRC Ispra (IT);MORRISSEY A M, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Sixth International Conference on Fusion Reactor Materials, Stresa (IT), September 27 - October 1, 1993
Availability: Available from (1) as Paper EN 37804 ORA
Record Number: 199311274 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en