Dissimilar friction stir welding was conducted on the combination of pure Ti and carbon fibre reinforced plastic. The weld interface microstructure and mechanical properties of the obtained joints were systematically investigated. Before welding, a surface treatment was performed on the Ti surface using a silane coupling agent. As a result, the silane coupling agent treatment helped to fabricate the sound dissimilar Ti/CFRP joint. The dissimilar Ti/CFRP joints obtained at the interface temperature between the melting point of the CFRP and thermal decomposition point of the CFRP showed superior tensile-shear strength due to the formation of the sufficient reaction between the surface-modified Ti and CFRP and the suppression of welding defect formation in the CFRP near the weld interface.

中文翻译：

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纯钛与碳纤维增强塑料异种搅拌摩擦焊

对纯钛和碳纤维增强塑料的组合进行异种搅拌摩擦焊。系统研究了所得接头的焊缝界面显微组织和力学性能。焊接前，使用硅烷偶联剂对Ti表面进行表面处理。因此，硅烷偶联剂处理有助于制造良好的异种 Ti/CFRP 接头。在 CFRP 熔点和 CFRP 热分解点之间的界面温度下获得的异种 Ti/CFRP 接头表现出优异的拉伸剪切强度，这是由于表面改性的 Ti 和 CFRP 之间形成了足够的反应和抑制CFRP 焊接界面附近焊接缺陷的形成。