含缺陷的Al-Si-Mg合金的疲劳性能和强度评估

易科尖,吴明泽,张继旺,闫军芳,梅桂明,朱守东,苏凯新

Fatigue Properties and Strength Assessment for Al-Si-Mg Alloy via Test Samples with Artificial Defects

Kejian YI,Mingze WU,Jiwang ZHANG,Junfang YAN,Guiming MEI,Shoudong ZHU,Kaixin SU

表1 Al-7Si-0.6Mg系铸造合金化学成分(质量分数，%)

Table 1 Chemical composition of Al-7Si-0.6Mg casting alloy (mass fraction, %)

Alloy Si Mn Fe Cu Ni Zn Ti Mg Cr Al Al-7Si-0.6Mg 7.05 0.0019 0.151 <0.0050 0.0092 0.0068 0.193 0.561 0.029 Bal.