A study of the laser deposotion, structure, and mechanical properties of composite materials based on the Inconel 625 – 5 wt. % Al–TiB2 powder mixture

In this work, samples of metal-matrix composite materials based on the Inconel 625-5 wt. % (Al-TiB2) system were obtained using the additive technology of direct laser deposition. The results showed that the surfacing parameters critically affected the structure of the formed beads, as well as the quality of drying the initial powders. The patterns of the structure formation and physical and mechanical properties of the obtained samples were studied. The factors determining the hardness and strength of the obtained materials were derived. It was shown that the first-type heat treatment allowed increasing the ultimate strength of the obtained metal-matrix composite materials by an average of 20%.