The increase in FCGR at a lower frequency at 500oC was thought to be caused by a time-dependent, oxidation-assisted cracking mechanism. 此频率效应是由裂缝尖端氧化与循环负载的加乘作用所造成，频率越低，则氧化的加乘效果越明显。
The effects of loading frequency on HCF and FCG in salt water for this precipitation-hardening stainless steel are different. 在频率效应方面，负荷频率的改变对于高周疲劳性质及疲劳裂缝成长速率有不同的影响。
