Ni-Cr-Mo鋼の平面曲げ塑性疲れ

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タイトル別名
  • Plane Bending Plastic Fatigue of Ni-Cr-Mo Steel
  • Ni-Cr-Mo コウ ノ ヘイメン マゲ ソセイ ツカレ

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The plane bending plastic fatigue testing machine was developed for further systematic study of the problem. The constrained strain test and the constrained stress test were carried out on the Ni-Cr-Mo steel. From the discussion of the results, we concluded that the test under constant strain amplitude is the most basic one in the sense that it gives a fairly stable hysteresis loop throughout the test, and the data of the other tests under various conditions such as varying amplitude and constrained stress amplitude should be discussed in comparison with those of the test under constant strain amplitude. The treatment using the parameter εtotal, which is the total strain summed up from the beginning to the fracture regardless the sign, seems to offer a method for further analysis.

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