The high-power laser welding of particle-reinforced ZrB

2 p

/6061 Al matrix composites was carried out

and the effect of laser welding on the microstructure and performance of aluminum matrix composite welds was explored

thus optimizing the preparation parameters of composites. By analyzing the weld microstructure under various welding parameters

the optimal welding parameters and weld microstructure were presented. The results reveal that with laser power of 2 000 W

moving speed of 7 mm/s and welding angle of 85°

the aluminum matrix grains are refined obviously after welding with the particles dispersed evenly and the particle clusters disappearing

meanwhile

the average Vickers hardness in the weld zone is 64.6 HV.