15℃、0.45应力水平 | |||||
空隙率 | 8.015% | 6.512% | 6.008% | 5.012% | 4.333% |
疲劳寿命Nf | 79 | 243 | 319 | 633 | 853 |
lgNf | 1.898 | 2.386 | 2.504 | 2.801 | 2.931 |
降低1%空隙率疲劳寿命变化率 | 44.9% | 47.3% | 49.8% | 38.0% | / |
变化率均值 | 45.0% |