| Abstract: | In order to investigate the bonding behavior and mechanism of the interface prepared by explosive welding,the bonding interfaces of OCr18Ni9/16MnR were observed and analyzed by means of optical microscope(OM),scanning electron microscope(SEM)and electron probe microanalysis(EPMA).It is found that the welding interfaces are wavy due to the wavy explosive loading.There are three kinds of bonding interfaces i.e.big wave,small wave and micro wave.There are a few seam defects and all elements contents are less than both of the base and flyer plate in the transition zone of big wavy interface.Moreover,some"holes"result in the lowest bonding strength of big wavy interface nearby the interface in the base plate.All elements contents of the small wavy interface are between two metals,and there are few seam and hole defects,so it is the higher for the bonding strength of small wavy interface.There is no transition zone and defects in the micro wavy interface,so the interface is the best.To gain the high quality small and micro wavy bonding interface the explosive charge should be controlled. |
