Dynamic Creep and Fatigue of 13 Chromium Steel at Elevated Temperature

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Dynamic creep and fatigue tests were carried out with a 13 chromium steel at 450℃. The results were discussed from the standpoint of the analysis, which had been presented by the authors previously, to predict the dynamic creep and fatigue strength from static creep or rupture data together with fatigue data under reversed stress. Satisfactory agreements were observed between the predicted and the experimental strength values in both cases of dynamic creep and fatigue. Under repeated stress, the strength was found to be determined by the creep characteristics and can be predicted from static creep or rupture data. In the case of alternating stress testing, where tensile and compressive stresses were applied alternately, the strength was determined by fatigue characteristics and prediction was made by using the fatigue data under reversed stress.
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