图4. Al-5.6Si-25.2Ge和Zn-22Al钎料钎焊Cu/Al接头的SEM像和EDS元素线扫描结果
Fig.4. SEM images (a, c) and EDS element line scanning along the lines in Figs.4a and c (b, d) of Cu/Al joints brazed with Al-5.6Si-25.2Ge (a, b) and Zn-22Al (c, d) filler metals