作者: H. Amani , M. Soltanieh
DOI: 10.1007/S11663-016-0682-1
关键词:
摘要: Diffusion couples of aluminum and copper were fabricated by explosive welding process. The interface evolution caused annealing at different temperatures time durations was investigated means optical microscopy, scanning electron microscopy equipped with energy dispersive spectroscopy, x-ray diffraction. Annealing in the temperature range 573 K to 773 (300 °C 500 °C) up 408 hours showed that four types intermetallic layers have been formed interface, namely Al2Cu, AlCu, Al3Cu4, Al4Cu9. Moreover, it observed iron trace formation Fe-bearing intermetallics Al, which is near Al-Cu layers. Finally, activation energies for growth AlCu + Al4Cu9, total layer calculated be about 83.3, 112.8, 121.6, 109.4 kJ/mol, respectively. Considering common methods (i.e., welding, cold rolling, friction welding), although there a great difference mechanism, found approximately same.