含缺陷的Al-Si-Mg合金的疲劳性能和强度评估
易科尖1,吴明泽1,张继旺1(
),闫军芳2,梅桂明1,朱守东1,苏凯新1
),闫军芳2,梅桂明1,朱守东1,苏凯新1
Fatigue Properties and Strength Assessment for Al-Si-Mg Alloy via Test Samples with Artificial Defects
YI Kejian1,WU Mingze1,ZHANG Jiwang1(),YAN Junfang2,MEI Guiming1,ZHU Shoudong1,SU Kaixin1
),YAN Junfang2,MEI Guiming1,ZHU Shoudong1,SU Kaixin1
图4. 不同尺寸钻孔试样的疲劳断口
Fig.4. Drilled specimen fatigue fracture in different sizes (a) 925 μm drilled specimen–70 MPa stress level; (b) 370 μm drilled specimen–90 MPa stress level
