氮化钢的主要接触疲劳破坏形式是剥落.

Spalling was a major form of contact fatigue failures in nitriding steel.

通过改变预处理回火温度，研究了基体强度对氮化钢渗氮件三点弯曲疲劳强度的影响。

The effects of matrix strength on three-point bent fatigue strength for the nitriding parts made from the nitrided steel have been studied by changing tempering temperature during pre-treatment.