抄録
This investigation has been conducted to make clear the effect of strain rate at pre-stretching on the fatigue strength. The 18%Cr-8%Ni stainless steel has been used for specimens in this study.
The specimens pre-stretched 30% rapidly have presented high fatigue limit than the specimens pre-stretched 30% statically.
It is recognized that this fact is due to higher amount of promoting martensite transformation in the case by rapid pre-stretching than in the case by static pre-stretching.
