疲れ段階のエネルギ状態について : 第1報, 速度論的解析

抄録

A study on the energy states of steel during the fatigue process is presented, the main results obtained were as follows : 1) The fatigue process of steel at room temperature is a rate process. 2) At the first stage of fatigue process observed on hysteresis energy, the activation energy calculated from the variation of hardening is 8090 cal/mol. 3) At the second stage, the activation energy calculated from the variations of slip band is 3100∼4300 cal/mol. Next, basing on the experiments, an energy model which gives the relation between the statistical variations of atoms and the energy states was proposed, and the static hysteresis energies were discussed theoretically.