Experimental Disparity Analysis of the Behavior and Fatigue of the 304L Stainless Steel

This present study investigates the fatigue behavior of the 304L austenitic stainless steel at room temperature. We are particularly interested in the consequences of the experimental disparity on the behavior and on the fatigue of such steel. Thus, several specimens were solicited through the application of symmetrical strain controlled tests with amplitude of 0.22 %. The obtained results show that the evolutions of the stress amplitude of the loaded specimens are almost identical, with a specific fatigue life for each specimen. The evolutions of the isotropic (R) and kinematic (X) parts of the cyclic hardening show that these two components have a similar evolution during the fatigue cycles. The evolution of the discharge slope is similar for all the loaded specimens.