Dynamic Creep and Fatigue of 13Cr Steel at Elevated Temperature

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  • 13クロム鋼の高温における動クリープおよび疲れ
  • 13 クロム コウ ノ コウオン ニ オケル ドウ クリープ オヨビ ツカレ

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Abstract

Dynamic creep and fatigue tests were carried out with a 13 Cr steel at the temperature of 450°C. The results were discussed from the standpoint of the analysis, which was 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 exprimental strength values in the both cases of dynamic creep and fatigue. Under repeated stress, the strength was determined by creep and can be predicted from static creep or rupture data. In the case of alternating stress testing, where tensile and compressive stresses were applied alternatively, the strength was determined by fatigue and prediction was to be made using the fatigue data under reversed stress.

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