中国机械工程2017，Vol.28Issue(23)：2893-2897,5.DOI:10.3969/j.issn.1004-132X.2017.23.018
激光烧蚀铝合金表面对其胶接接头耐腐蚀性能的影响
Effects of Laser Ablation on Corrosion Resistance of Adhesive-bonded Aluminum Joint
摘要
Abstract
Physicochemical properties of surfaces were analyzed after laser-treated for aluminum 5052.And lap-shear strength and failure mode of adhesive joints were tested under salt spray environ-ments.The results show that the residual strength of adhesive-bonded laser ablated aluminum alloys increases by 40% after salt spray environments,and the failure mode transferres to cohesive failure from interfacial failure.The values of surface roughness are improved from 0.09 μm to 1.17 μm,and a concavo-convex porous structure formed by laser ablation.It shows that the adhesive may penetrate into the substrates so that the interface is enhanced.Also,more oxygen elements are found on the surfaces after laser ablation which may improve the corrosion resistance of aluminum substrates.关键词
铝合金/激光烧蚀/胶接接头/耐腐蚀性能Key words
aluminum alloy/laser ablation/adhesive joint/corrosion resistance分类
矿业与冶金引用本文复制引用
朱传敏,吕珊珊,梅雨,林建平..激光烧蚀铝合金表面对其胶接接头耐腐蚀性能的影响[J].中国机械工程,2017,28(23):2893-2897,5.基金项目
国家自然科学基金资助项目(51575397) （51575397）
