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Abstract
Fe-based nanocrystalline alloys have the characteristics of low power consumption, corrosion resistance and good magnetic stability, while pure Al is characterized by good electrical conductivity, high reflectivity and non-magnetism. To combine the respective performance advantages of the two materials, the welding of Fe-based nanocrystalline alloy foil and Al foil was realized by laser impact spot welding. In addition, the microstructure and mechanical properties of welded joints with different standoff distance were observed and tested. The results show that with the increase in standoff distance, the plastic deformation of the flyer surface will be more serious. When the standoff distance increases gradually (0.1 mm–0.2 mm–0.3 mm), the welding interface will transit from straight interface to wavy interface and finally to wavy interface with local melting zone. The maximum tensile force of the welded sample will increase with the increase in the thickness of the flyer.
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