ABSTRACT

The joining of amorphous alloys and common metals has been hot subjects of abundant studies in recent years. Nevertheless, the crystallization and fracture of amorphous alloy are still big challenges during the joining process. This paper presents an innovatively underwater explosive welding method to weld the Fe-based amorphous foil and Aluminum 1060. The interfacial microstructure was characterized using the optical microscopy (OM), field emission scanning electron microscopy (FSEM) and micro X-Ray diffraction (XRD). Meanwhile, the underwater explosive welding process was simulated using smoothed particle hydrodynamics (SPH) method by ANSYS/AUTODYN software. The experimental results indicated that the Fe-based amorphous foil and Al plate were successfully welded without visible defects or cracks and an approximately 4 µm thick transition layer was formed at the joining interface. The elements mixed and formed intermetallic compounds at the transition layer. The simulation results verified the weldability of Fe-based amorphous foil and Al plates, which are in good agreement with experimental results.

摘要

近年来，非晶合金与普通金属的接合一直是大量研究的热点。尽管如此，非晶合金的结晶和断裂仍然是接合过程中的一大挑战。本文提出了一种创新的水下爆炸焊接方法来焊接铁基非晶箔和铝 1060。使用光学显微镜 (OM)、场发射扫描电子显微镜 (FSEM) 和显微 X 射线衍射 (XRD) 表征界面微观结构。 ）。同时，利用ANSYS/AUTODYN软件，采用光滑粒子流体力学(SPH)方法对水下爆炸焊接过程进行了模拟。实验结果表明，铁基非晶箔和铝板成功焊接，无可见缺陷或裂纹，并在接合界面形成了约 4 µm 厚的过渡层。元素在过渡层混合并形成金属间化合物。仿真结果验证了铁基非晶箔和铝板的可焊性，与实验结果吻合较好。