ABSTRACT

Adhesively bonded titanium alloy joints were prepared through flame-based surface treatment, and their failure behavior and substrate surface properties were investigated. The commercially available ITRO surface treatment technique was applied to Ti-6Al-4 V alloy substrates to modify their surfaces prior to bonding with an epoxy film adhesive. Adhesively bonded single-lap joint specimens were tested under static tensile loading to determine their strength and failure mode. Scanning electron microscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy were employed to observe the morphology and chemistry of the treated titanium alloy surfaces. ITRO treatment significantly increased the strength of the joint specimens. The strength enhancement was probably due to the interactions of the silicon oxide film that was formed on the surface of the titanium alloy substrate with both the adhesive and the substrate.

摘要

通过火焰基表面处理制备了粘结钛合金接头，并研究了它们的破坏行为和基底表面性能。在与环氧薄膜胶粘剂粘合之前，将可商购的ITRO表面处理技术应用于Ti-6Al-4 V合金基材，以修饰其表面。胶粘的单搭接接头样品在静态拉伸载荷下进行测试，以确定其强度和破坏模式。使用扫描电子显微镜，X射线光电子能谱和傅立叶变换红外光谱来观察处理后的钛合金表面的形态和化学性质。ITRO处理显着提高了关节标本的强度。