3、45.0~46.0 mm和8.0~11.0 mm時，制備出的板材各項力學性能滿足技術指標ASTM B898-2020。界面的波形為典型波紋狀結合，界面清晰均勻，波形在漩渦區(qū)存在少量熔化，波幅和波長的比值為0.15~0.25，且在比值為0.2左右時，產品的剪切強度最高。本研究為大規(guī)格鈦-鋼復合板的制備提供工藝方法，并發(fā)現大規(guī)格鈦-鋼復合板的界面特點，為后續(xù)優(yōu)化復合板爆炸焊接工藝提供理論指導。;Titanium-steel composite plates with large sizes of 4260 mm×4260 mm×(6.5+32) mm were prepared by explosive welding technique. Ultrasonic nondestructive testing, phased-array waveform microscopy, optical microscope, and scanning electron microscope were used to analyze the mechanical properties and interface morphologies of the composite plates. Results show that when the detonation velocity, density, explosive height, and stand-off distance are 2200–2270 m/s, 0.80–0.82 g/cm3, 45.0–46.0 mm, and 8.0–11.0 mm, respectively, the mechanical properties of the prepared plates can satisfy ASTM B898-2020 technical requirements. The interface waveform presents a typical periodic combination morphology and the interface is clear and uniform. A small amount of solidified melt exists in the vortex area of waveform. The ratio of amplitude to wavelength ranges from 0.15 to 0.25, and the optimal shear strength can be achieved when the ratio is approximately 0.20. This research provides preparation technique for the large-size titanium-steel composite plates and theoretical guidance for the subsequent optimization of the explosive welding process of composite plants."/>