In this work, an improved explosive welding technique was introduced to obtaining high-quality metal coatings, where titanium (TA2) foils with different thicknesses of 0.1, 0.2, 0.3, and 0.4 mm were successfully coated on Q235 steel. Systematic investigations of the achieved claddings were conducted using macro- and micro-morphology observations, EDS elemental analyses, mechanical tests (three-point bending and nanoindentation), and electrochemical measurements. It was concluded that the explosive welding technique was an effective way to produce high-quality TA2 coatings. In both morphological analyses and mechanical tests, an excellent bonding quality was confirmed for the cases of TA2 foils with a thickness of greater than 0.1 mm. Meanwhile, the welding window was proved still being practical for predicting the bonding interface characteristics in the explosive welding of the metal foil. The EDS analyses and nanoindentation tests signified inhomogeneous properties of the materials near the bonding interface due to shock-induced work hardening and the formation of molten zone. Eventually, TA2 foil coatings were certified by electrochemical measurement to remarkably enhance the corrosion resistance of the Q235 substrate.

在这项工作中，引入了一种改进的爆炸焊接技术来获得高质量的金属涂层，其中 0.1、0.2、0.3 和 0.4 毫米不同厚度的钛 (TA2) 箔成功地涂覆在 Q235 钢上。使用宏观和微观形态观察、EDS 元素分析、机械测试（三点弯曲和纳米压痕）和电化学测量对所获得的覆层进行了系统研究。结论是爆炸焊接技术是生产高质量TA2涂层的有效方法。在形态分析和机械测试中，厚度大于 0.1 毫米的 TA2 箔的情况下都证实了优异的粘合质量。同时，事实证明，焊接窗口对于预测金属箔爆炸焊接中的结合界面特征仍然是实用的。EDS 分析和纳米压痕测试表明，由于冲击引起的加工硬化和熔融区的形成，接合界面附近材料的性能不均匀。最终，TA2箔涂层通过电化学测量认证，显着提高了Q235基材的耐腐蚀性。