夹层爆炸焊接高强度铝合金与钛合金的界面特性和力学性能研究

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Abstract：Toachieve explosive bonding of high-strength low-melting-point aluminum alloy （A7075） and highstrength titanium alloy （Ti-6Al-4V），this study proposes the useof pure aluminum （A106O）as an interlayer and investigates the interface morphology and structural characteristics under different welding parameters.The microstructural features and tensile-bending properties of the composite plate interface were analyzed using optical microscopy （OM），scanning electron microscopy （SEM），and universal material testing machine.Explosive welding of the A7075/A1060/Ti-6Al-4V metal composite plates with interlayer bonding was successfully achieved under both setsof parameters，withnosignificant defectsobserved at the welding interface.Meltedregions were found at both the upper and lower interfaces under different explosive welding parameters.Mechanical performance results show that the interface shear strength of the composite plate prepared with a 2mm thickA106O interlayer is greater than . In terms of bending performance，samples with interlayer gap parameters of 2mm and 5mm （204 exhibited higher bending strength，with the maximum bending strength reaching 1209.9MPa .No fracture occurred at the welding interface during tensile bending tests.This study provides valuable insights into the explosive welding process for this type of composite plate.

Keywords：explosive welding；interlayer；welding interface；mechanical properties；aluminum/titaniumcomposite plate

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在现代材料科学领域，复合材料凭借整合多种材料优异性能的独特优势，成为推动各行业发展的关键力量。（剩余9774字）