磨削深度对 γ-TiAl合金表面完整性和疲劳性能的影响
倪明杰, 刘仁慈, 周浩浩, 杨超, 葛术宇, 刘冬, 史凤岭, 崔玉友, 杨锐

Influence of Grinding Depth on the Surface Integrity and Fatigue Property of γ-TiAl Alloy
NI Mingjie, LIU Renci, ZHOU Haohao, YANG Chao, GE Shuyu, LIU Dong, SHI Fengling, CUI Yuyou, YANG Rui
表2 不同深度磨削旋转弯曲疲劳γ-TiAl样品圆弧工作段轴向表面粗糙度及其650℃加载440 MPa疲劳寿命
Table 2 Surface roughness parameters and fatigue life at 650oC loaded 440 MPa of γ-TiAl samples ground with different grinding depths
Grinding depth / mmNo.Ra / μmRz / μmRskRkuNf / cyc
0.0510.5252.819-0.1342.521978066
20.6694.222-0.5743.73188264
30.5903.364-0.4722.832963463
40.4912.8850.3902.852950000
50.4692.956-0.8824.207530000
0.110.5633.233-0.5863.191860544
20.7474.232-0.4522.922900787
30.6313.582-0.0832.799709
40.7734.2860.2322.6416000
50.4522.717-0.4523.291960000
0.211.3518.325-0.4853.6235200
22.83113.573-0.2362.5512200
31.6959.565-1.0104.2915500
41.3897.466-0.4062.6413284
51.6499.941-0.9213.775149