The exponential functions were used to reflect the relationship among fatigue stress, number of stress cycles and environmental parameters. The fitting precision of the functions was relatively high.
2
应力越高,在可以预料的破坏之前循环次数就越少。
The higher the stress the fewer will be the cycles before failure can be expected.
3
当应力大于应力阈值时,氢化物应力再取向程度随着与应力、温度循环次数增加而增大。
When applied stress is higher than the threshold stress, the level of hydride reorientation increases with the increase of stress and the number of temperature cycling.