Amorphous welding is a very common but complex technology in the welding industry. The common amorphous welding is amorphous alloy laser welding. Regarding a new type of metal material, amorphous alloys have a wide range of prospects for use in many aspects. This paper starts from the laser welding of amorphous alloys, analyzes its research status, and looks forward to its development trend, as well as the development trend of amorphous alloys. Have a deeper understanding of alloy laser welding skills.

Amorphous alloys do not have the common function of grain boundaries and dislocations, and the excellent functions of amorphous alloys and traditional metal materials are also different, making them have great potential for use in the industrial field, making many materials scientists and engineering users. had a strong love for it. However, its limited dimensions, difficult processing and poor weldability make it difficult to use in practice. This paper analyzes the research status of amorphous alloy laser welding, and has a further understanding and understanding of amorphous alloy laser welding.

1. The current research status of laser welding of amorphous alloys

In China, in 2004, Li Bo, Li Zhiyuan and others of Huazhong University of Science and Technology mainly used the laser welding method to connect the Zr45Cu48A17 bulk amorphous alloy. Under the condition of laser power of 1200W, scanning speed of 8m/min, spot diameter of 0.3mm, and Ar gas maintenance, completely amorphous and flawless welded joints were obtained. In 2007, Kim et al. used a pulsed ND:YAG laser to perform scanning ablation welding of Cu54Ni6Zr22Ti18 bulk amorphous alloy plates, and the methods and results were basically the same as those in the reference. In 2008, Louzguine-louzgin et al. also studied the microstructure of laser welded Ni-Nb-Ti-Zr-Co-Cu bulk amorphous alloy welding samples. In 2013, Chen Biao and others from Huazhong University of Science and Technology used laser welding to prepare Zr55Cu30Al10Ni5 amorphous alloy welding samples and conduct microscopic observations.

2. The development trend of amorphous alloy laser welding

Amorphous alloy is a new type of metal material, which has no grain boundaries and dislocations compared with traditional metal materials. This makes amorphous alloys have many common excellent functions, such as high strength, high hardness, ultra-high wear resistance and corrosion resistance, outstanding soft magnetic properties and so on. It has outstanding application prospects in the fields of machinery manufacturing, sports equipment, optical communication, optical integration, high-efficiency magnetic and power transmission materials. However, limited size, difficult processing and poor weldability make amorphous alloys stay on the concept of "great potential and prospects for use". As a new type of welding technology, laser technology has improved the weldability of amorphous alloys with its flexibility, easy control and no need for a vacuum chamber.

With the increasing influence of amorphous alloys in materials science and engineering, laser welding of amorphous alloys enables them to give full play to their common functions and expand their use in engineering. Therefore, it is of great significance to study the status quo of amorphous alloy laser welding technology for its widespread use in the future.